/* CSS Variables - Keep global as they may be used elsewhere */
:root {
    --primary: #1A237E;
    --primary-dark: #0D47A1;
    --accent: #00C853;
    --success: #28a745;
    --warning: #ffc107;
    --error: #dc3545;
    --text-dark: #212121;
    --text-medium: #616161;
    --border: #e0e0e0;
    --border-light: #f0f0f0;
    --bg-light: #f8fafc;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.3s ease;
}

/* Subscription Page Specific Styles - All scoped under .subscription-page */
.subscription-page {
    padding: 2rem;
    background: var(--bg-light);
    min-height: 100vh;
}

/* Subscription header */
.subscription-page .subscription-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
}

.subscription-page .subscription-header .header-left h1 {
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    color: var(--primary);
    font-weight: 700;
}

.subscription-page .subscription-header .header-left p {
    margin: 0;
    color: var(--text-medium);
    font-size: 1rem;
}

/* Subscription content layout */
.subscription-page .subscription-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

/* Current subscription section */
.subscription-page .current-subscription {
    margin-bottom: 2rem;
}

.subscription-page .billing-history {
    margin-bottom: 2rem;
}

.subscription-page .user-subjects {
    margin-bottom: 2rem;
}

/* Subscription Alert Messages - Override base styles for better positioning */
.subscription-page .alert {
    margin-bottom: 2rem;
    border-radius: var(--border-radius-lg);
    padding: 1.25rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    box-shadow: var(--shadow-md);
    animation: slideInDown 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.subscription-page .alert i {
    font-size: 1.3rem;
    margin-right: 0;
    flex-shrink: 0;
}

.subscription-page .alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
    border: 1px solid #c3e6cb;
    border-left: 4px solid var(--success);
}

.subscription-page .alert-error {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-left: 4px solid var(--error);
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading and Error States */
.subscription-page .loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    color: var(--text-medium);
}

.subscription-page .loading-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.subscription-page .loading-state p {
    margin: 0;
    font-size: 1rem;
    color: var(--text-medium);
}

.subscription-page .empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    color: var(--text-medium);
}

.subscription-page .empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--text-medium);
    opacity: 0.5;
}

.subscription-page .empty-state h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text-dark);
    font-size: 1.5rem;
    font-weight: 600;
}

.subscription-page .empty-state p {
    margin: 0 0 2rem 0;
    max-width: 400px;
    color: var(--text-medium);
    line-height: 1.5;
}

/* Button Styles */
.subscription-page .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
}

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

.subscription-page .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 35, 126, 0.3);
}

.subscription-page .btn-secondary {
    background: var(--bg-light);
    color: var(--primary);
    border: 2px solid var(--border);
}

.subscription-page .btn-secondary:hover {
    background: var(--border-light);
    border-color: var(--primary);
}

.subscription-page .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Loading overlay for subscription actions */
.subscription-page .subscription-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    backdrop-filter: blur(4px);
}

.subscription-page .subscription-loading-content {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-xl);
    max-width: 300px;
    width: 90%;
}

.subscription-page .subscription-loading-content i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.subscription-page .subscription-loading-content p {
    margin: 0;
    color: var(--text-dark);
    font-weight: 500;
}

/* Current Subscription Card */
.subscription-page .current-subscription-card,
.subscription-page .subscription-current-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    padding: 2rem;
    margin-bottom: 2rem;
}

.subscription-page .subscription-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.subscription-page .plan-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.subscription-page .plan-name {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.subscription-page .plan-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: fit-content;
}

.subscription-page .plan-status.active {
    background: rgba(22, 163, 74, 0.1);
    color: var(--success);
}

.subscription-page .plan-status.cancelled {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.subscription-page .plan-status.suspended {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.subscription-page .plan-status.expired {
    background: rgba(156, 163, 175, 0.1);
    color: #6b7280;
}

.subscription-page .plan-status.unknown {
    background: rgba(156, 163, 175, 0.1);
    color: #6b7280;
}

.subscription-page .plan-price {
    text-align: right;
}

.subscription-page .price-amount {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.subscription-page .price-period {
    font-size: 0.9rem;
    color: var(--text-medium);
}

.subscription-page .plan-details {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

.subscription-page .plan-details .detail-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    flex: 1;
}

.subscription-page .plan-details .detail-item i {
    color: var(--primary);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.subscription-page .plan-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.subscription-page .plan-actions .action-btn {
    flex: 1;
    min-width: 140px;
}

.subscription-page .plan-actions .action-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.subscription-page .plan-actions .action-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

.subscription-page .subscription-info h2 {
    margin: 0 0 0.5rem 0;
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 600;
}

.subscription-page .subscription-info p {
    margin: 0;
    color: var(--text-medium);
}

.subscription-page .subscription-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.9rem;
}

.subscription-page .subscription-status.active {
    background: rgba(22, 163, 74, 0.1);
    color: var(--success);
}

.subscription-page .subscription-status.cancelled {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.subscription-page .subscription-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.subscription-page .detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.subscription-page .detail-label {
    color: var(--text-medium);
    font-size: 0.9rem;
    font-weight: 500;
}

.subscription-page .detail-value {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 1.1rem;
}

.subscription-page .subscription-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Billing History Section */
.subscription-page .billing-history-section {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    padding: 2rem;
    margin-bottom: 3rem;
}

.subscription-page .section-header {
    margin-bottom: 2rem;
}

.subscription-page .section-header h2 {
    margin: 0 0 0.5rem 0;
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 600;
}

.subscription-page .section-header p {
    margin: 0;
    color: var(--text-medium);
    font-size: 1rem;
}

.subscription-page .billing-table-container {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.subscription-page .billing-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.subscription-page .billing-table th {
    background: var(--bg-light);
    color: var(--text-dark);
    font-weight: 600;
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.subscription-page .billing-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
    color: var(--text-medium);
}

.subscription-page .billing-table tbody tr:hover {
    background: var(--bg-light);
}

.subscription-page .date-cell,
.subscription-page .product-cell,
.subscription-page .amount-cell {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.subscription-page .date-cell i {
    color: var(--text-medium);
}

.subscription-page .amount-cell strong {
    color: var(--text-dark);
}

.subscription-page .status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.subscription-page .status-badge.paid {
    background: rgba(22, 163, 74, 0.1);
    color: var(--success);
}

.subscription-page .status-badge.pending {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.subscription-page .status-badge.failed {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.subscription-page .status-badge.refunded {
    background: rgba(99, 102, 241, 0.1);
    color: #6366f1;
}

.subscription-page .invoice-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.subscription-page .invoice-btn:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.subscription-page .invoice-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.subscription-page .no-invoice {
    color: var(--text-medium);
    font-style: italic;
}

/* User Subjects Manager */
.subscription-page .user-subjects-section {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    padding: 2rem;
    margin-bottom: 3rem;
}

.subscription-page .subjects-form {
    padding: 2rem;
}

.subscription-page .subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.subscription-page .subject-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: var(--transition);
    background: white;
}

.subscription-page .subject-item:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.subscription-page .subject-item.selected {
    border-color: var(--accent);
    background: rgba(0, 200, 83, 0.02);
    box-shadow: 0 0 0 3px rgba(0, 200, 83, 0.1);
}

.subscription-page .subject-checkbox {
    position: relative;
}

.subscription-page .subject-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.subscription-page .checkbox-label {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    margin: 0;
}

.subscription-page .checkbox-label i {
    font-size: 1.5rem;
    color: var(--text-medium);
    transition: var(--transition);
}

.subscription-page .subject-item.selected .checkbox-label i {
    color: var(--accent);
}

.subscription-page .subject-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-light);
    color: var(--primary);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.subscription-page .subject-item.selected .subject-icon {
    background: rgba(0, 200, 83, 0.1);
    color: var(--accent);
}

.subscription-page .subject-info {
    flex: 1;
}

.subscription-page .subject-name {
    margin: 0 0 0.25rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
}

.subscription-page .subject-description {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-medium);
    line-height: 1.4;
}

.subscription-page .subjects-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

/* Change Subscription Modal */
.subscription-page .subscription-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease-out;
    backdrop-filter: blur(4px);
}

.subscription-page .subscription-modal {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 900px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideInUp 0.3s ease-out;
}

.subscription-page .modal-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.subscription-page .modal-header h2 {
    margin: 0;
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 600;
}

.subscription-page .modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-medium);
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.subscription-page .modal-close:hover {
    background: var(--bg-light);
    color: var(--primary);
}

.subscription-page .modal-body {
    padding: 2rem;
}

.subscription-page .billing-period-selector {
    margin-bottom: 2rem;
    text-align: center;
}

.subscription-page .billing-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-dark);
}

.subscription-page .toggle-text {
    font-size: 1rem;
}

.subscription-page .plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.subscription-page .plan-card {
    position: relative;
    background: white;
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.subscription-page .plan-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.subscription-page .plan-card.selected {
    border-color: var(--accent);
    background: rgba(0, 200, 83, 0.02);
    box-shadow: 0 0 0 3px rgba(0, 200, 83, 0.1);
}

.subscription-page .plan-card.popular {
    border-color: var(--accent);
}

.subscription-page .popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent), #00e676);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.subscription-page .plan-header {
    margin-bottom: 1.5rem;
}

.subscription-page .plan-title {
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.subscription-page .plan-description {
    margin: 0;
    color: var(--text-medium);
    font-size: 0.9rem;
    line-height: 1.4;
}

.subscription-page .plan-pricing {
    margin-bottom: 2rem;
    text-align: center;
}

.subscription-page .plan-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.subscription-page .plan-period {
    font-size: 1rem;
    color: var(--text-medium);
}

.subscription-page .monthly-equivalent {
    display: block;
    font-size: 0.9rem;
    color: var(--text-medium);
    margin-top: 0.25rem;
}

.subscription-page .plan-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
    flex: 1;
}

.subscription-page .plan-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    line-height: 1.4;
}

.subscription-page .plan-features i {
    color: var(--success);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.subscription-page .current-plan-indicator {
    background: var(--bg-light);
    color: var(--text-medium);
    padding: 0.75rem;
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 500;
    margin-top: auto;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Subscription responsive design */
@media (max-width: 768px) {
    .subscription-page {
        padding: 1rem;
    }

    .subscription-page .subscription-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .subscription-page .subscription-header .header-left h1 {
        font-size: 1.5rem;
    }

    .subscription-page .subscription-content {
        gap: 2rem;
    }

    .subscription-page .current-subscription-card,
    .subscription-page .subscription-current-card,
    .subscription-page .billing-history-section,
    .subscription-page .user-subjects-section {
        padding: 1.5rem;
    }

    .subscription-page .subscription-details {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .subscription-page .subscription-actions {
        flex-direction: column;
        justify-content: stretch;
    }

    .subscription-page .billing-table {
        font-size: 0.8rem;
    }

    .subscription-page .billing-table th,
    .subscription-page .billing-table td {
        padding: 0.75rem 0.5rem;
    }

    .subscription-page .subjects-grid {
        grid-template-columns: 1fr;
    }

    .subscription-page .plans-grid {
        grid-template-columns: 1fr;
    }

    .subscription-page .alert {
        padding: 1rem;
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }

    .subscription-page .alert i {
        font-size: 1.2rem;
    }

    .subscription-page .modal-header,
    .subscription-page .modal-body {
        padding: 1.5rem;
    }

    /* CurrentSubscriptionCard responsive */
    .subscription-page .subscription-card-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .subscription-page .plan-price {
        text-align: left;
    }

    .subscription-page .plan-details {
        flex-direction: column;
        gap: 1rem;
    }

    .subscription-page .plan-actions {
        flex-direction: column;
    }

    .subscription-page .plan-actions .action-btn {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .subscription-page {
        padding: 0.5rem;
    }

    .subscription-page .subscription-header .header-left h1 {
        font-size: 1.25rem;
    }

    .subscription-page .subscription-loading-content {
        padding: 1.5rem;
        margin: 1rem;
    }

    .subscription-page .alert {
        padding: 0.875rem 1rem;
        font-size: 0.85rem;
    }

    .subscription-page .current-subscription-card,
    .subscription-page .subscription-current-card,
    .subscription-page .billing-history-section,
    .subscription-page .user-subjects-section {
        padding: 1rem;
    }

    .subscription-page .plan-details {
        padding: 1rem;
    }
}