/* =================================
   DASHBOARD LAYOUT SYSTEM
   ================================= */

/* Dashboard Container */
.dashboard-container {
    display: flex;
    min-height: 100vh;
    background-color: var(--bg-light);
}

/* Sidebar Styles */
.sidebar {
    width: 280px;
    background: linear-gradient(135deg, var(--primary), #3949ab);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    color: white;
}

.sidebar-menu {
    list-style: none;
    padding: 1rem 0;
    margin: 0;
}

.sidebar-menu li {
    margin: 0.25rem 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.sidebar-menu a.active {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    border-left-color: var(--accent);
}

.sidebar-menu a i {
    margin-right: 0.75rem;
    font-size: 1.2rem;
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.logout-btn {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.logout-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.logout-btn i {
    margin-right: 0.5rem;
}

/* Main Content Area */
.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 2rem;
    background-color: var(--bg-light);
}

/* =================================
   STUDY MODE SPECIFIC STYLES
   ================================= */

/* Study Header */
.study-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.study-header .header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.study-header .back-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}

.study-header .back-btn:hover {
    background: var(--background);
    color: var(--primary);
    border-color: var(--primary);
}

.study-header .study-info h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.study-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.subject-tag {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.progress-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.study-header .header-right .study-stats {
    display: flex;
    gap: 2rem;
}

.study-stats .stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.study-stats .stat i {
    font-size: 1.25rem;
    color: var(--accent);
}

/* Study Main Layout */
.study-main {
    display: grid;
    grid-template-columns: 1fr 600px;
    gap: 2rem;
    padding: 2rem;
    min-height: calc(100vh - 120px);
}

/* Study Question Section */
.study-question-section {
    background: var(--surface);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.study-question-container {
    padding: 2rem;
}

.study-question-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.study-question-tags .tag {
    background: var(--background);
    color: var(--text-secondary);
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8rem;
    border: 1px solid var(--border);
}

.study-question-content .question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.study-question-content .question-header h2 {
    color: var(--primary);
    font-size: 1.75rem;
    font-weight: 600;
}

.study-question-difficulty {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--warning);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.study-question-text {
    margin-bottom: 2rem;
}

.study-question-text p {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.study-math-expression {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    font-family: 'Courier New', monospace;
    font-size: 1.5rem;
    text-align: center;
    color: var(--primary);
    font-weight: 600;
}

/* Study Answer Options */
.study-answer-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.study-answer-options .option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    background: var(--surface);
}

.study-answer-options .option:hover {
    border-color: var(--primary);
    background: #f8fafc;
}

.study-answer-options .option.selected {
    border-color: var(--primary);
    background: #e3f2fd;
}

.study-answer-options .option.correct {
    border-color: var(--success);
    background: #e8f5e8;
}

.study-answer-options .option.incorrect {
    border-color: var(--error);
    background: #ffebee;
}

.study-answer-options .option.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.study-answer-options .option-label {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: 600;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.study-answer-options .option.selected .option-label {
    background: var(--accent);
}

.study-answer-options .option.correct .option-label {
    background: var(--success);
}

.study-answer-options .option.incorrect .option-label {
    background: var(--error);
}

.study-answer-options .option-text {
    font-size: 1.125rem;
    color: var(--text-primary);
}

/* Hints Section */
.hints-section {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.hints-section h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.hints-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.hint-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.hint-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.hint-btn.used {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.hint-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #f5f5f5;
    color: #999;
    border-color: #e0e0e0;
}

.hint-btn.disabled:hover {
    background: #f5f5f5;
    color: #999;
    border-color: #e0e0e0;
}

.hint-display {
    background: linear-gradient(135deg, #e3f2fd, #f3e5f5);
    border: 1px solid var(--info);
    border-radius: 8px;
    padding: 1.5rem;
    position: relative;
    animation: slideDown 0.3s ease;
}

.hint-content h4 {
    color: var(--primary);
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
}

.hint-content p {
    color: var(--text-primary);
    line-height: 1.6;
}

.close-hint {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: var(--transition);
}

.close-hint:hover {
    color: var(--error);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Study Action Buttons */
.study-question-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.study-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    min-width: 150px;
}

.study-action-btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.study-action-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.study-action-btn.secondary {
    background: var(--surface);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.study-action-btn.secondary:hover {
    background: var(--primary);
    color: white;
}

/* Study Navigation Controls */
.study-question-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: var(--background);
    border-top: 1px solid var(--border);
}

.study-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-primary);
    font-weight: 500;
}

.study-nav-btn:hover:not(:disabled) {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.study-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.study-question-counter {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* AI Mentor Section */
.ai-mentor-section {
    background: var(--surface);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    height: calc(100vh - 160px);
    overflow: hidden;
}

.mentor-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    flex-shrink: 0;
}

.mentor-avatar {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.mentor-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.mentor-status {
    font-size: 0.875rem;
    opacity: 0.8;
}

.minimize-chat {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.25rem;
    margin-left: auto;
    transition: var(--transition);
}

.minimize-chat:hover {
    opacity: 0.7;
}

.chat-container {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: 0;
    max-height: 100%;
}

.chat-message {
    display: flex;
    gap: 0.75rem;
    max-width: 85%;
    flex-shrink: 0;
}

.mentor-message {
    align-self: flex-start;
}

.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mentor-message .message-avatar {
    background: var(--primary);
    color: white;
}

.user-message .message-avatar {
    background: var(--accent);
    color: white;
}

.message-content {
    background: var(--background);
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

.user-message .message-content {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.message-content p {
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.message-time {
    font-size: 0.75rem;
    opacity: 0.7;
}

.chat-input-container {
    padding: 1rem;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.chat-input {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.chat-input input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.875rem;
    outline: none;
    transition: var(--transition);
}

.chat-input input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.send-btn {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.send-btn:hover {
    background: var(--secondary);
}

.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quick-actions .action-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quick-actions .action-btn i {
    font-size: 1.25rem;
}

/* =================================
   STUDY MODE SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quick-actions .action-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quick-actions .action-btn i {
    font-size: 1.25rem;
}

/* =================================
   DASHBOARD HEADERS (Using base classes)
   ================================= */

.page-header,
.dashboard-header,
.subjects-header,
.materials-header,
.history-header,
.profile-header,
.subscription-header {
    /* Inherits from section-header with-actions */
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.header-left h1 {
    /* Inherits from section-title large */
    color: var(--primary);
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    font-weight: 600;
}

.header-left p {
    /* Inherits from section-subtitle */
    color: var(--text-medium);
    margin: 0;
    font-size: 1.1rem;
}

.header-right {
    /* Inherits from actions-container */
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Dashboard Header Specific */
.notifications {
    position: relative;
    padding: 0.75rem;
    background-color: var(--bg-light);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.notifications:hover {
    background-color: var(--border-light);
}

.notifications i {
    font-size: 1.25rem;
    color: var(--primary);
}

.notification-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--error);
    color: white;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-light);
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.user-profile:hover {
    background-color: var(--border-light);
}

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.user-profile span {
    font-weight: 500;
    color: var(--primary);
}

/* Materials Header Specific */
.search-controls {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.search-clear {
    background: none;
    border: none;
    color: var(--text-medium);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    transition: var(--transition);
}

.search-clear:hover {
    background: var(--bg-light);
    color: var(--text-dark);
}

/* Exam Results Header Specific */
.results-page-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-md);
}

.results-page-header .header-content {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.results-page-header .exam-info h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: white !important;
}

.results-page-header .exam-subject {
    opacity: 0.9;
    font-size: 1rem;
    color: white !important;
}

/* =================================
   DASHBOARD BUTTONS (Using base classes)
   ================================= */

.action-btn {
    /* Inherits from btn-rounded */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 25px;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    border: none;
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.action-btn.primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3);
}

.action-btn.secondary {
    background: var(--bg-light);
    color: var(--primary);
    border: 1px solid var(--border);
}

.action-btn.secondary:hover {
    background: var(--border-light);
    border-color: var(--primary);
    transform: translateY(-1px);
}

/* Materials Specific Buttons */
.reset-filters-btn {
    /* Inherits from action-btn secondary */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-light);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text-medium);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    height: 50px;
    box-sizing: border-box;
}

.reset-filters-btn:hover {
    background: var(--border-light);
    border-color: var(--primary);
    color: var(--text-dark);
}

/* =================================
   DASHBOARD FORM ELEMENTS (Using base classes)
   ================================= */

.input-container {
    /* Inherits from input-group */
    position: relative;
    display: flex;
    align-items: center;
}

.input-container input,
.filter-select,
select {
    /* Inherits from form-control */
    width: 100%;
    padding: 0.75rem 0.75rem 0.75rem 2.5rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: white;
    transition: var(--transition);
    font-family: inherit;
    box-sizing: border-box;
}

.input-container input:focus,
.filter-select:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    color: var(--text-medium);
    font-size: 1rem;
    z-index: 1;
}

/* Select Styling */
select, 
.filter-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding: 0.75rem 2.5rem 0.75rem 0.75rem;
    cursor: pointer;
}

/* Search Box Styling */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem;
    width: 100%;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.search-box i {
    color: var(--text-medium);
    margin-right: 0.75rem;
    font-size: 1rem;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: transparent;
    padding: 0;
}

.search-box input::placeholder {
    color: var(--text-medium);
}

/* Filter Section Layout */
.filter-section {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.filter-group {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 140px;
}

.filter-group.search-group {
    min-width: 280px;
    flex: 1;
    max-width: 400px;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* =================================
   DASHBOARD CARDS & LAYOUTS (Using base classes)
   ================================= */

.card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.material-card {
    /* Inherits from card-base clickable */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 0;
}

.stat-card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Stats Grid */
.stats-grid {
    /* Inherits from grid-layout grid-auto-fit */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    margin-bottom: 2rem;
}

.stat-icon {
    /* Inherits from icon-container medium primary */
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 1.75rem;
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 0.25rem 0;
}

.stat-info p {
    color: var(--text-medium);
    margin: 0 0 0.5rem 0;
    font-weight: 500;
}

.stat-change {
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    background-color: var(--bg-light);
    color: var(--text-medium);
}

.stat-change.positive {
    background-color: #dcfce7;
    color: var(--success);
}

/* =================================
   DASHBOARD MODAL SYSTEM
   ================================= */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: translateY(-30px) scale(0.9);
    transition: var(--transition);
}

.modal-content.material-detail-modal {
    max-width: 800px;
    width: 95%;
}

.modal-overlay.show .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.modal-close {
    /* Inherits from icon-container small */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--bg-light);
    color: var(--text-medium);
    cursor: pointer;
    border: none;
    font-size: 1.25rem;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border);
    color: var(--primary);
}

.modal-body {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-medium);
}

.modal-footer {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-top: 1px solid var(--border);
    gap: 1rem;
    flex-shrink: 0;
}

/* =================================
   DASHBOARD PAGINATION
   ================================= */

.pagination-section {
    /* Inherits from flex-between card-base */
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem 2rem;
    margin-top: 2rem;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-medium);
}

.pagination-controls {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.pagination-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: white;
    color: var(--text-dark);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-section.column {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.5rem;
}

.pagination-section.column .pagination-info {
    text-align: center;
    margin-bottom: 1rem;
}

.pagination-section.column .pagination-controls {
    justify-content: center;
    gap: 1.5rem;
}

/* =================================
   DASHBOARD SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quick-actions .action-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quick-actions .action-btn i {
    font-size: 1.25rem;
}

/* =================================
   STUDY MODE SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quick-actions .action-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align:左;
}

.quick-actions .action-btn i {
    font-size: 1.25rem;
}

/* =================================
   DASHBOARD HEADERS (Using base classes)
   ================================= */

.page-header,
.dashboard-header,
.subjects-header,
.materials-header,
.history-header,
.profile-header,
.subscription-header {
    /* Inherits from section-header with-actions */
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.header-left h1 {
    /* Inherits from section-title large */
    color: var(--primary);
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    font-weight: 600;
}

.header-left p {
    /* Inherits from section-subtitle */
    color: var(--text-medium);
    margin: 0;
    font-size: 1.1rem;
}

.header-right {
    /* Inherits from actions-container */
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Dashboard Header Specific */
.notifications {
    position: relative;
    padding: 0.75rem;
    background-color: var(--bg-light);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.notifications:hover {
    background-color: var(--border-light);
}

.notifications i {
    font-size: 1.25rem;
    color: var(--primary);
}

.notification-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--error);
    color: white;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-light);
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.user-profile:hover {
    background-color: var(--border-light);
}

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.user-profile span {
    font-weight: 500;
    color: var(--primary);
}

/* Materials Header Specific */
.search-controls {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.search-clear {
    background: none;
    border: none;
    color: var(--text-medium);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    transition: var(--transition);
}

.search-clear:hover {
    background: var(--bg-light);
    color: var(--text-dark);
}

/* Exam Results Header Specific */
.results-page-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-md);
}

.results-page-header .header-content {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.results-page-header .exam-info h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: white !important;
}

.results-page-header .exam-subject {
    opacity: 0.9;
    font-size: 1rem;
    color: white !important;
}

/* =================================
   DASHBOARD BUTTONS (Using base classes)
   ================================= */

.action-btn {
    /* Inherits from btn-rounded */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 25px;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    border: none;
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.action-btn.primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3);
}

.action-btn.secondary {
    background: var(--bg-light);
    color: var(--primary);
    border: 1px solid var(--border);
}

.action-btn.secondary:hover {
    background: var(--border-light);
    border-color: var(--primary);
    transform: translateY(-1px);
}

/* Materials Specific Buttons */
.reset-filters-btn {
    /* Inherits from action-btn secondary */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-light);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text-medium);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    height: 50px;
    box-sizing: border-box;
}

.reset-filters-btn:hover {
    background: var(--border-light);
    border-color: var(--primary);
    color: var(--text-dark);
}

/* =================================
   DASHBOARD FORM ELEMENTS (Using base classes)
   ================================= */

.input-container {
    /* Inherits from input-group */
    position: relative;
    display: flex;
    align-items: center;
}

.input-container input,
.filter-select,
select {
    /* Inherits from form-control */
    width: 100%;
    padding: 0.75rem 0.75rem 0.75rem 2.5rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: white;
    transition: var(--transition);
    font-family: inherit;
    box-sizing: border-box;
}

.input-container input:focus,
.filter-select:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    color: var(--text-medium);
    font-size: 1rem;
    z-index: 1;
}

/* Select Styling */
select, 
.filter-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding: 0.75rem 2.5rem 0.75rem 0.75rem;
    cursor: pointer;
}

/* Search Box Styling */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem;
    width: 100%;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.search-box i {
    color: var(--text-medium);
    margin-right: 0.75rem;
    font-size: 1rem;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: transparent;
    padding: 0;
}

.search-box input::placeholder {
    color: var(--text-medium);
}

/* Filter Section Layout */
.filter-section {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.filter-group {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 140px;
}

.filter-group.search-group {
    min-width: 280px;
    flex: 1;
    max-width: 400px;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* =================================
   DASHBOARD CARDS & LAYOUTS (Using base classes)
   ================================= */

.card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.material-card {
    /* Inherits from card-base clickable */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 0;
}

.stat-card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Stats Grid */
.stats-grid {
    /* Inherits from grid-layout grid-auto-fit */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    margin-bottom: 2rem;
}

.stat-icon {
    /* Inherits from icon-container medium primary */
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 1.75rem;
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 0.25rem 0;
}

.stat-info p {
    color: var(--text-medium);
    margin: 0 0 0.5rem 0;
    font-weight: 500;
}

.stat-change {
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    background-color: var(--bg-light);
    color: var(--text-medium);
}

.stat-change.positive {
    background-color: #dcfce7;
    color: var(--success);
}

/* =================================
   DASHBOARD MODAL SYSTEM
   ================================= */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: translateY(-30px) scale(0.9);
    transition: var(--transition);
}

.modal-content.material-detail-modal {
    max-width: 800px;
    width: 95%;
}

.modal-overlay.show .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.modal-close {
    /* Inherits from icon-container small */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--bg-light);
    color: var(--text-medium);
    cursor: pointer;
    border: none;
    font-size: 1.25rem;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border);
    color: var(--primary);
}

.modal-body {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-medium);
}

.modal-footer {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-top: 1px solid var(--border);
    gap: 1rem;
    flex-shrink: 0;
}

/* =================================
   DASHBOARD PAGINATION
   ================================= */

.pagination-section {
    /* Inherits from flex-between card-base */
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem 2rem;
    margin-top: 2rem;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-medium);
}

.pagination-controls {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.pagination-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: white;
    color: var(--text-dark);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-section.column {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.5rem;
}

.pagination-section.column .pagination-info {
    text-align: center;
    margin-bottom: 1rem;
}

.pagination-section.column .pagination-controls {
    justify-content: center;
    gap: 1.5rem;
}

/* =================================
   DASHBOARD SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quick-actions .action-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quick-actions .action-btn i {
    font-size: 1.25rem;
}

/* =================================
   DASHBOARD HEADERS (Using base classes)
   ================================= */

.page-header,
.dashboard-header,
.subjects-header,
.materials-header,
.history-header,
.profile-header,
.subscription-header {
    /* Inherits from section-header with-actions */
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.header-left h1 {
    /* Inherits from section-title large */
    color: var(--primary);
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    font-weight: 600;
}

.header-left p {
    /* Inherits from section-subtitle */
    color: var(--text-medium);
    margin: 0;
    font-size: 1.1rem;
}

.header-right {
    /* Inherits from actions-container */
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Dashboard Header Specific */
.notifications {
    position: relative;
    padding: 0.75rem;
    background-color: var(--bg-light);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.notifications:hover {
    background-color: var(--border-light);
}

.notifications i {
    font-size: 1.25rem;
    color: var(--primary);
}

.notification-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--error);
    color: white;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-light);
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.user-profile:hover {
    background-color: var(--border-light);
}

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.user-profile span {
    font-weight: 500;
    color: var(--primary);
}

/* Materials Header Specific */
.search-controls {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.search-clear {
    background: none;
    border: none;
    color: var(--text-medium);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    transition: var(--transition);
}

.search-clear:hover {
    background: var(--bg-light);
    color: var(--text-dark);
}

/* Exam Results Header Specific */
.results-page-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-md);
}

.results-page-header .header-content {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.results-page-header .exam-info h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: white !important;
}

.results-page-header .exam-subject {
    opacity: 0.9;
    font-size: 1rem;
    color: white !important;
}

/* =================================
   DASHBOARD BUTTONS (Using base classes)
   ================================= */

.action-btn {
    /* Inherits from btn-rounded */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 25px;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    border: none;
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.action-btn.primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3);
}

.action-btn.secondary {
    background: var(--bg-light);
    color: var(--primary);
    border: 1px solid var(--border);
}

.action-btn.secondary:hover {
    background: var(--border-light);
    border-color: var(--primary);
    transform: translateY(-1px);
}

/* Materials Specific Buttons */
.reset-filters-btn {
    /* Inherits from action-btn secondary */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-light);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text-medium);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    height: 50px;
    box-sizing: border-box;
}

.reset-filters-btn:hover {
    background: var(--border-light);
    border-color: var(--primary);
    color: var(--text-dark);
}

/* =================================
   DASHBOARD FORM ELEMENTS (Using base classes)
   ================================= */

.input-container {
    /* Inherits from input-group */
    position: relative;
    display: flex;
    align-items: center;
}

.input-container input,
.filter-select,
select {
    /* Inherits from form-control */
    width: 100%;
    padding: 0.75rem 0.75rem 0.75rem 2.5rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: white;
    transition: var(--transition);
    font-family: inherit;
    box-sizing: border-box;
}

.input-container input:focus,
.filter-select:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    color: var(--text-medium);
    font-size: 1rem;
    z-index: 1;
}

/* Select Styling */
select, 
.filter-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding: 0.75rem 2.5rem 0.75rem 0.75rem;
    cursor: pointer;
}

/* Search Box Styling */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem;
    width: 100%;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.search-box i {
    color: var(--text-medium);
    margin-right: 0.75rem;
    font-size: 1rem;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: transparent;
    padding: 0;
}

.search-box input::placeholder {
    color: var(--text-medium);
}

/* Filter Section Layout */
.filter-section {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.filter-group {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 140px;
}

.filter-group.search-group {
    min-width: 280px;
    flex: 1;
    max-width: 400px;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* =================================
   DASHBOARD CARDS & LAYOUTS (Using base classes)
   ================================= */

.card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.material-card {
    /* Inherits from card-base clickable */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 0;
}

.stat-card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Stats Grid */
.stats-grid {
    /* Inherits from grid-layout grid-auto-fit */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    margin-bottom: 2rem;
}

.stat-icon {
    /* Inherits from icon-container medium primary */
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 1.75rem;
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 0.25rem 0;
}

.stat-info p {
    color: var(--text-medium);
    margin: 0 0 0.5rem 0;
    font-weight: 500;
}

.stat-change {
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    background-color: var(--bg-light);
    color: var(--text-medium);
}

.stat-change.positive {
    background-color: #dcfce7;
    color: var(--success);
}

/* =================================
   DASHBOARD MODAL SYSTEM
   ================================= */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: translateY(-30px) scale(0.9);
    transition: var(--transition);
}

.modal-content.material-detail-modal {
    max-width: 800px;
    width: 95%;
}

.modal-overlay.show .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.modal-close {
    /* Inherits from icon-container small */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--bg-light);
    color: var(--text-medium);
    cursor: pointer;
    border: none;
    font-size: 1.25rem;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border);
    color: var(--primary);
}

.modal-body {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-medium);
}

.modal-footer {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-top: 1px solid var(--border);
    gap: 1rem;
    flex-shrink: 0;
}

/* =================================
   DASHBOARD PAGINATION
   ================================= */

.pagination-section {
    /* Inherits from flex-between card-base */
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem 2rem;
    margin-top: 2rem;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-medium);
}

.pagination-controls {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.pagination-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: white;
    color: var(--text-dark);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-section.column {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.5rem;
}

.pagination-section.column .pagination-info {
    text-align: center;
    margin-bottom: 1rem;
}

.pagination-section.column .pagination-controls {
    justify-content: center;
    gap: 1.5rem;
}

/* =================================
   DASHBOARD SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quick-actions .action-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quick-actions .action-btn i {
    font-size: 1.25rem;
}

/* =================================
   STUDY MODE SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quick-actions .action-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quick-actions .action-btn i {
    font-size: 1.25rem;
}

/* =================================
   DASHBOARD HEADERS (Using base classes)
   ================================= */

.page-header,
.dashboard-header,
.subjects-header,
.materials-header,
.history-header,
.profile-header,
.subscription-header {
    /* Inherits from section-header with-actions */
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.header-left h1 {
    /* Inherits from section-title large */
    color: var(--primary);
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    font-weight: 600;
}

.header-left p {
    /* Inherits from section-subtitle */
    color: var(--text-medium);
    margin: 0;
    font-size: 1.1rem;
}

.header-right {
    /* Inherits from actions-container */
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Dashboard Header Specific */
.notifications {
    position: relative;
    padding: 0.75rem;
    background-color: var(--bg-light);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.notifications:hover {
    background-color: var(--border-light);
}

.notifications i {
    font-size: 1.25rem;
    color: var(--primary);
}

.notification-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--error);
    color: white;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-light);
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.user-profile:hover {
    background-color: var(--border-light);
}

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.user-profile span {
    font-weight: 500;
    color: var(--primary);
}

/* Materials Header Specific */
.search-controls {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.search-clear {
    background: none;
    border: none;
    color: var(--text-medium);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    transition: var(--transition);
}

.search-clear:hover {
    background: var(--bg-light);
    color: var(--text-dark);
}

/* Exam Results Header Specific */
.results-page-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-md);
}

.results-page-header .header-content {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.results-page-header .exam-info h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: white !important;
}

.results-page-header .exam-subject {
    opacity: 0.9;
    font-size: 1rem;
    color: white !important;
}

/* =================================
   DASHBOARD BUTTONS (Using base classes)
   ================================= */

.action-btn {
    /* Inherits from btn-rounded */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 25px;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    border: none;
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.action-btn.primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3);
}

.action-btn.secondary {
    background: var(--bg-light);
    color: var(--primary);
    border: 1px solid var(--border);
}

.action-btn.secondary:hover {
    background: var(--border-light);
    border-color: var(--primary);
    transform: translateY(-1px);
}

/* Materials Specific Buttons */
.reset-filters-btn {
    /* Inherits from action-btn secondary */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-light);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text-medium);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    height: 50px;
    box-sizing: border-box;
}

.reset-filters-btn:hover {
    background: var(--border-light);
    border-color: var(--primary);
    color: var(--text-dark);
}

/* =================================
   DASHBOARD FORM ELEMENTS (Using base classes)
   ================================= */

.input-container {
    /* Inherits from input-group */
    position: relative;
    display: flex;
    align-items: center;
}

.input-container input,
.filter-select,
select {
    /* Inherits from form-control */
    width: 100%;
    padding: 0.75rem 0.75rem 0.75rem 2.5rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: white;
    transition: var(--transition);
    font-family: inherit;
    box-sizing: border-box;
}

.input-container input:focus,
.filter-select:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    color: var(--text-medium);
    font-size: 1rem;
    z-index: 1;
}

/* Select Styling */
select, 
.filter-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding: 0.75rem 2.5rem 0.75rem 0.75rem;
    cursor: pointer;
}

/* Search Box Styling */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem;
    width: 100%;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.search-box i {
    color: var(--text-medium);
    margin-right: 0.75rem;
    font-size: 1rem;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: transparent;
    padding: 0;
}

.search-box input::placeholder {
    color: var(--text-medium);
}

/* Filter Section Layout */
.filter-section {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.filter-group {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 140px;
}

.filter-group.search-group {
    min-width: 280px;
    flex: 1;
    max-width: 400px;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* =================================
   DASHBOARD CARDS & LAYOUTS (Using base classes)
   ================================= */

.card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.material-card {
    /* Inherits from card-base clickable */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 0;
}

.stat-card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Stats Grid */
.stats-grid {
    /* Inherits from grid-layout grid-auto-fit */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    margin-bottom: 2rem;
}

.stat-icon {
    /* Inherits from icon-container medium primary */
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 1.75rem;
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 0.25rem 0;
}

.stat-info p {
    color: var(--text-medium);
    margin: 0 0 0.5rem 0;
    font-weight: 500;
}

.stat-change {
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    background-color: var(--bg-light);
    color: var(--text-medium);
}

.stat-change.positive {
    background-color: #dcfce7;
    color: var(--success);
}

/* =================================
   DASHBOARD MODAL SYSTEM
   ================================= */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: translateY(-30px) scale(0.9);
    transition: var(--transition);
}

.modal-content.material-detail-modal {
    max-width: 800px;
    width: 95%;
}

.modal-overlay.show .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.modal-close {
    /* Inherits from icon-container small */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--bg-light);
    color: var(--text-medium);
    cursor: pointer;
    border: none;
    font-size: 1.25rem;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border);
    color: var(--primary);
}

.modal-body {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-medium);
}

.modal-footer {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-top: 1px solid var(--border);
    gap: 1rem;
    flex-shrink: 0;
}

/* =================================
   DASHBOARD PAGINATION
   ================================= */

.pagination-section {
    /* Inherits from flex-between card-base */
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem 2rem;
    margin-top: 2rem;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-medium);
}

.pagination-controls {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.pagination-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: white;
    color: var(--text-dark);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-section.column {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.5rem;
}

.pagination-section.column .pagination-info {
    text-align: center;
    margin-bottom: 1rem;
}

.pagination-section.column .pagination-controls {
    justify-content: center;
    gap: 1.5rem;
}

/* =================================
   DASHBOARD SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quick-actions .action-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quick-actions .action-btn i {
    font-size: 1.25rem;
}

/* =================================
   STUDY MODE SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.quick-actions .action-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.quick-actions .action-btn i {
    font-size: 1.25rem;
}

/* =================================
   DASHBOARD HEADERS (Using base classes)
   ================================= */

.page-header,
.dashboard-header,
.subjects-header,
.materials-header,
.history-header,
.profile-header,
.subscription-header {
    /* Inherits from section-header with-actions */
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.header-left h1 {
    /* Inherits from section-title large */
    color: var(--primary);
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    font-weight: 600;
}

.header-left p {
    /* Inherits from section-subtitle */
    color: var(--text-medium);
    margin: 0;
    font-size: 1.1rem;
}

.header-right {
    /* Inherits from actions-container */
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Dashboard Header Specific */
.notifications {
    position: relative;
    padding: 0.75rem;
    background-color: var(--bg-light);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.notifications:hover {
    background-color: var(--border-light);
}

.notifications i {
    font-size: 1.25rem;
    color: var(--primary);
}

.notification-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--error);
    color: white;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-light);
    border-radius: 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.user-profile:hover {
    background-color: var(--border-light);
}

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.user-profile span {
    font-weight: 500;
    color: var(--primary);
}

/* Materials Header Specific */
.search-controls {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.search-clear {
    background: none;
    border: none;
    color: var(--text-medium);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    transition: var(--transition);
}

.search-clear:hover {
    background: var(--bg-light);
    color: var(--text-dark);
}

/* Exam Results Header Specific */
.results-page-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-md);
}

.results-page-header .header-content {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.results-page-header .exam-info h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: white !important;
}

.results-page-header .exam-subject {
    opacity: 0.9;
    font-size: 1rem;
    color: white !important;
}

/* =================================
   DASHBOARD BUTTONS (Using base classes)
   ================================= */

.action-btn {
    /* Inherits from btn-rounded */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: 25px;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    border: none;
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.action-btn.primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3);
}

.action-btn.secondary {
    background: var(--bg-light);
    color: var(--primary);
    border: 1px solid var(--border);
}

.action-btn.secondary:hover {
    background: var(--border-light);
    border-color: var(--primary);
    transform: translateY(-1px);
}

/* Materials Specific Buttons */
.reset-filters-btn {
    /* Inherits from action-btn secondary */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-light);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text-medium);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    height: 50px;
    box-sizing: border-box;
}

.reset-filters-btn:hover {
    background: var(--border-light);
    border-color: var(--primary);
    color: var(--text-dark);
}

/* =================================
   DASHBOARD FORM ELEMENTS (Using base classes)
   ================================= */

.input-container {
    /* Inherits from input-group */
    position: relative;
    display: flex;
    align-items: center;
}

.input-container input,
.filter-select,
select {
    /* Inherits from form-control */
    width: 100%;
    padding: 0.75rem 0.75rem 0.75rem 2.5rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: white;
    transition: var(--transition);
    font-family: inherit;
    box-sizing: border-box;
}

.input-container input:focus,
.filter-select:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    color: var(--text-medium);
    font-size: 1rem;
    z-index: 1;
}

/* Select Styling */
select, 
.filter-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding: 0.75rem 2.5rem 0.75rem 0.75rem;
    cursor: pointer;
}

/* Search Box Styling */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem;
    width: 100%;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.1);
}

.search-box i {
    color: var(--text-medium);
    margin-right: 0.75rem;
    font-size: 1rem;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 0.9rem;
    color: var(--text-dark);
    background: transparent;
    padding: 0;
}

.search-box input::placeholder {
    color: var(--text-medium);
}

/* Filter Section Layout */
.filter-section {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.filter-group {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 140px;
}

.filter-group.search-group {
    min-width: 280px;
    flex: 1;
    max-width: 400px;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* =================================
   DASHBOARD CARDS & LAYOUTS (Using base classes)
   ================================= */

.card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.material-card {
    /* Inherits from card-base clickable */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 0;
}

.stat-card {
    /* Inherits from card-base hover-subtle */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Stats Grid */
.stats-grid {
    /* Inherits from grid-layout grid-auto-fit */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    margin-bottom: 2rem;
}

.stat-icon {
    /* Inherits from icon-container medium primary */
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 1.75rem;
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 0.25rem 0;
}

.stat-info p {
    color: var(--text-medium);
    margin: 0 0 0.5rem 0;
    font-weight: 500;
}

.stat-change {
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    background-color: var(--bg-light);
    color: var(--text-medium);
}

.stat-change.positive {
    background-color: #dcfce7;
    color: var(--success);
}

/* =================================
   DASHBOARD MODAL SYSTEM
   ================================= */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: translateY(-30px) scale(0.9);
    transition: var(--transition);
}

.modal-content.material-detail-modal {
    max-width: 800px;
    width: 95%;
}

.modal-overlay.show .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    /* Inherits from flex-between */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.modal-close {
    /* Inherits from icon-container small */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--bg-light);
    color: var(--text-medium);
    cursor: pointer;
    border: none;
    font-size: 1.25rem;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border);
    color: var(--primary);
}

.modal-body {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-medium);
}

.modal-footer {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-top: 1px solid var(--border);
    gap: 1rem;
    flex-shrink: 0;
}

/* =================================
   DASHBOARD PAGINATION
   ================================= */

.pagination-section {
    /* Inherits from flex-between card-base */
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 1.5rem 2rem;
    margin-top: 2rem;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-medium);
}

.pagination-controls {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.pagination-btn {
    /* Inherits from flex-center */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: white;
    color: var(--text-dark);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-section.column {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.5rem;
}

.pagination-section.column .pagination-info {
    text-align: center;
    margin-bottom: 1rem;
}

.pagination-section.column .pagination-controls {
    justify-content: center;
    gap: 1.5rem;
}

/* =================================
   DASHBOARD SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.quick-actions h2 {
    color: var(--primary, #1A237E);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary, #1A237E), var(--accent, #00C853));
    color: white;
}

.action-btn.primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3);
}

.action-btn.secondary {
    background-color: #f8fafc;
    color: var(--primary, #1A237E);
    border: 1px solid #e2e8f0;
}

.action-btn.secondary:hover {
    background-color: #f1f5f9;
    border-color: var(--primary, #1A237E);
}

.action-btn i {
    font-size: 1.25rem;
}

/* Progress Section */
.progress-section {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

    .progress-section h2 {
        color: var(--primary, #1A237E);
        margin: 0 0 1.5rem 0;
        font-size: 1.5rem;
        font-weight: 600;
    }

.progress-chart {
    background-color: #f8fafc;
    border-radius: 8px;
    padding: 1.5rem;
}

.chart-container {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.chart-header {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.chart-legend {
    display: flex;
    gap: 2rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 4px;
}

    .legend-color.math {
        background: linear-gradient(135deg, var(--primary, #1A237E), #3949ab);
    }

    .legend-color.physics {
        background: linear-gradient(135deg, #f59e0b, #f97316);
    }

    .legend-color.chemistry {
        background: linear-gradient(135deg, var(--accent, #00C853), #16a34a);
    }

.chart-area {
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    min-height: 200px;
    margin-bottom: 1.5rem;
}

.chart-y-axis {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 200px;
    font-size: 0.75rem;
    color: #64748b;
    padding-right: 0.5rem;
}

.chart-bars {
    flex: 1;
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    height: 200px;
    gap: 1rem;
}

.bar-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    max-width: 80px;
}

.bar-container {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 180px;
    margin-bottom: 0.5rem;
}

.bar {
    width: 12px;
    border-radius: 6px 6px 0 0;
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
}

    .bar.math {
        background: linear-gradient(to top, var(--primary, #1A237E), #3949ab);
    }

    .bar.physics {
        background: linear-gradient(to top, #f59e0b, #f97316);
    }

    .bar.chemistry {
        background: linear-gradient(to top, var(--accent, #00C853), #16a34a);
    }

    .bar:hover {
        transform: scaleY(1.05);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .bar::after {
        content: attr(data-value);
        position: absolute;
        top: -25px;
        left: 50%;
        transform: translateX(-50%);
        font-size: 0.75rem;
        font-weight: 600;
        color: #64748b;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .bar:hover::after {
        opacity: 1;
    }

.bar-label {
    font-size: 0.75rem;
    color: #64748b;
    font-weight: 500;
    text-align: center;
}

.chart-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.summary-item {
    text-align: center;
    padding: 1rem;
    background-color: #f8fafc;
    border-radius: 8px;
}

    .summary-item h4 {
        margin: 0 0 0.5rem 0;
        font-size: 0.875rem;
        color: var(--primary, #1A237E);
        font-weight: 600;
    }

    .summary-item p {
        margin: 0;
        font-weight: 600;
        color: #1e293b;
    }

/* Chart Responsiveness */
@media (max-width: 768px) {
    .chart-legend {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .chart-area {
        gap: 0.5rem;
    }

    .bar-container {
        gap: 1px;
    }

    .bar {
        width: 8px;
    }

    .chart-summary {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .chart-bars {
        gap: 0.5rem;
    }

    .bar-label {
        font-size: 0.625rem;
    }

    .legend-item {
        font-size: 0.75rem;
    }
}

/* =================================
   STUDY MODE SPECIFIC COMPONENTS
   ================================= */

/* Content Grid */
.content-grid {
    /* Inherits from grid-layout */
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 2fr 1fr;
    margin-bottom: 2rem;
}

/* Recent Activity */
.recent-activity {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.recent-activity h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.activity-list {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    /* Inherits from flex-start */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.activity-item:hover {
    background-color: var(--bg-light);
}

.activity-icon {
    /* Inherits from icon-container small light */
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    background-color: #e0f2fe;
    color: var(--primary);
    font-size: 1.25rem;
}

.activity-details h4 {
    margin: 0 0 0.25rem 0;
    color: var(--primary);
    font-weight: 600;
}

.activity-details p {
    margin: 0 0 0.5rem 0;
    color: var(--text-medium);
}

.activity-time {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Quick Actions */
.quick-actions {
    /* Inherits from card-base content-section */
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    padding: 2rem;
}

.quick-actions h2 {
    /* Inherits from section-title */
    color: var(--primary);
    margin: 0 0 1.5rem 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.action-buttons {
    /* Inherits from flex-column */
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}