/* Rele - Minimal Black & White - No JavaScript */

/* CSS Variables */
:root {
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f5;
    --color-text: #000000;
    --color-text-muted: #666666;
    --color-border: #e0e0e0;
    --color-border-dark: #000000;
    --color-primary: #000000;
    --color-danger: #dc3545;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    min-height: 100vh;
}

/* Layout */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 240px;
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: var(--color-bg);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-md);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 4px;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.15s ease;
}

.nav-item:hover {
    background-color: var(--color-bg-alt);
    color: var(--color-text);
}

.nav-item.active {
    background-color: var(--color-text);
    color: var(--color-bg);
}

.nav-item svg {
    flex-shrink: 0;
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

#user-info-mini {
    padding: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.btn-logout {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text);
    font-size: 0.85rem;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s ease;
}

.btn-logout:hover {
    background-color: var(--color-bg-alt);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 240px;
}

.page-content {
    padding: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.page-header-content h1 {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-xs);
}

.page-header-content p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.page-header p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.page-header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Tag Filter Section */
.tags-container {
    max-width: 600px;
    margin: 0 auto;
}

.tags-card {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
}

.tags-section {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.tags-section:last-child {
    border-bottom: none;
}

.tags-section h2 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.tags-help {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.tags-help:last-child {
    margin-bottom: 0;
}

.tag-filter-section {
    margin-bottom: var(--spacing-lg);
}

.tag-filter-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    margin-bottom: var(--spacing-sm);
}

.tag-filter-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.tag-filter-value {
    font-size: 0.9rem;
    font-weight: 500;
}

.btn-clear-tags {
    padding: 2px 6px;
    margin-left: auto;
    font-size: 0.8rem;
}

.tag-filter-form {
    display: flex;
    gap: var(--spacing-sm);
}

.tag-filter-input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Tag Badge */
.tag-badge {
    display: inline-block;
    padding: 2px 8px;
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    border: 1px solid var(--color-border);
    background: var(--color-bg-alt);
    font-size: 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.tag-badge:hover {
    background: var(--color-border);
}

.tag-badge--selected {
    background: var(--color-primary);
    color: var(--color-bg);
    border-color: var(--color-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border-dark);
    background: transparent;
    color: var(--color-text);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s ease;
}

.btn:hover {
    background: var(--color-bg-alt);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
}

.btn-secondary:hover {
    background: var(--color-bg-alt);
}

.btn-icon {
    padding: var(--spacing-sm);
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: 4px;
    text-decoration: none;
}

.btn-icon:hover {
    color: var(--color-text);
    background: var(--color-bg-alt);
}

/* Form */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.95rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-text);
}

.help-text {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.form-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.required {
    color: var(--color-text);
}

#form-error {
    margin-top: var(--spacing-md);
    color: var(--color-text-muted);
}

/* Filters Bar */
.filters-bar {
    display: flex;
    gap: var(--spacing-md);
    margin: 0 auto var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.filter-group label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.filter-group select,
.filter-group input {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.9rem;
    background: var(--color-bg);
}

/* Cards List */
.cards-list {
    display: grid;
    gap: var(--spacing-md);
    margin: 0 auto;
}

.card-item {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all 0.15s ease;
}

.card-item:hover {
    border-color: var(--color-text);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.card-item-question {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.card-item-answer {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Cards Table */
.cards-table-container {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    margin: 0 auto var(--spacing-lg);
}

.cards-table {
    width: 100%;
    border-collapse: collapse;
}

.cards-table th,
.cards-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.cards-table th {
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    background: var(--color-bg-alt);
}

.cards-table tr:last-child td {
    border-bottom: none;
}

.card-row:hover {
    background: var(--color-bg-alt);
}

.card-question a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
}

.card-question a:hover {
    text-decoration: underline;
}

.card-answer {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.state-badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 4px;
    background: var(--color-bg-alt);
}

.card-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.btn-delete {
    color: var(--color-text-muted);
}

.btn-delete:hover {
    color: #000;
}

.loading-row,
.empty-row {
    text-align: center;
    padding: var(--spacing-xl);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-pagination {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
}

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

.page-info {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* Study Mode */
.study-area {
    max-width: 700px;
    margin: 0 auto;
}

.study-card {
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
}

.card-side {
    padding: var(--spacing-xl);
    min-height: 320px;
    display: flex;
    flex-direction: column;
}

/* Card front - question centered */
.card-front .card-question-centered {
    font-size: 1.5rem;
    font-weight: 500;
    text-align: center;
    margin: auto;
}

/* Card back - horizontal split layout */
.card-back {
    display: flex;
    flex-direction: column;
}

.card-back .card-question-top {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-align: center;
    flex: 0 0 auto;
}

.card-back .card-divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--spacing-lg) 0;
    flex: 0 0 auto;
}

.card-back .card-answer-bottom {
    font-size: 1.5rem;
    font-weight: 500;
    text-align: center;
    margin-top: auto;
    margin-bottom: auto;
}

.btn-show-answer {
    width: 100%;
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s ease;
}

.btn-show-answer:hover {
    background: var(--color-bg-alt);
}

/* Rating Buttons */
.rating-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    border-top: 1px solid var(--color-border);
}

.btn-rating {
    padding: var(--spacing-md) var(--spacing-sm);
    border: none;
    background: transparent;
    color: var(--color-text);
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.15s ease;
}

.btn-rating:hover {
    background: var(--color-bg-alt);
}

.rating-label {
    display: block;
    font-weight: 500;
}

.rating-time {
    display: block;
    font-size: 0.7rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

/* Study Complete */
.study-complete {
    display: block;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    margin: 0 auto;
}

.empty-state svg {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.empty-state h2 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.empty-state p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.complete-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

/* Card Detail */
.card-detail-container {
    max-width: 700px;
    margin: 0 auto;
}

.card-detail-card {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
}

.card-detail-section {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.card-detail-section:last-child {
    border-bottom: none;
}

.card-detail-section h2 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.card-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.card-detail-field {
    margin-bottom: var(--spacing-md);
}

.card-detail-field label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.card-detail-value {
    font-size: 0.95rem;
    line-height: 1.5;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 500;
}

.schedule-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    font-size: 0.9rem;
}

.schedule-label {
    color: var(--color-text-muted);
}

.schedule-value {
    font-weight: 500;
}

.meta-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: 0.85rem;
}

.meta-label {
    color: var(--color-text-muted);
}

.meta-value {
    font-weight: 500;
}

.mono {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 0.75rem;
}

.card-detail-actions {
    padding: var(--spacing-lg);
}

.review-list {
    display: grid;
    gap: var(--spacing-xs);
}

.review-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.85rem;
}

.review-rating {
    font-weight: 500;
}

.review-date {
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

/* Card Form */
.card-form-container {
    max-width: 600px;
    margin: 0 auto;
}

.card-form textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
}

/* Shortcuts Hint */
.shortcuts-hint {
    display: none;
}

/* Loading & Errors */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
}

.spinner,
.spinner-small {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-text);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.spinner-small {
    width: 14px;
    height: 14px;
    border-width: 1px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.study-error {
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* Hidden */
.hidden {
    display: none !important;
}

/* Login Page */
.login-card {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.login-card .subtitle {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

.login-form {
    width: 100%;
    max-width: 320px;
}

.login-form input {
    margin-bottom: var(--spacing-md);
}

.login-form button {
    width: 100%;
}

/* Profile Page */
.profile-container {
    max-width: 600px;
    margin: 0 auto;
}

.profile-card {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.profile-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.profile-info h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.profile-member {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stat-item {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.profile-actions {
    padding: var(--spacing-lg);
}

/* CSS-Only Menu Toggle (Checkbox Hack) */
.menu-toggle-checkbox {
    position: fixed;
    top: -9999px;
    left: -9999px;
}

.menu-toggle {
    position: fixed;
    top: var(--spacing-md);
    left: 248px; /* sidebar width (240px) + spacing (8px) */
    z-index: 1000;
    display: none;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    cursor: pointer;
    border-radius: 4px;
    color: var(--color-text);
    transition: left 0.3s ease;
}

/* Desktop - checkbox controls sidebar visibility */
@media (min-width: 769px) {
    .menu-toggle {
        display: block;
    }

    /* Checked = sidebar hidden, unchecked = sidebar visible */
    .menu-toggle-checkbox:checked ~ .app-layout .sidebar {
        margin-left: -240px;
    }

    .menu-toggle-checkbox:checked ~ .app-layout .main-content {
        margin-left: 0;
    }

    /* Move toggle button with sidebar */
    .menu-toggle-checkbox:checked ~ .app-layout .menu-toggle {
        left: var(--spacing-md);
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .app-layout {
        flex-direction: column;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        z-index: 999;
        transform: translateX(0);
        transition: transform 0.3s ease;
        margin-left: 0;
    }

    /* Unchecked = sidebar visible, checked = sidebar hidden */
    .menu-toggle-checkbox:checked ~ .app-layout .sidebar {
        transform: translateX(-100%);
    }

    .main-content {
        margin-left: 0;
        padding-top: 60px;
    }

    .menu-toggle {
        display: block;
        left: 248px; /* At sidebar edge when visible */
    }

    /* Move toggle button when sidebar is hidden on mobile */
    .menu-toggle-checkbox:checked ~ .app-layout .menu-toggle {
        left: var(--spacing-md);
    }

    .page-content {
        padding: var(--spacing-md);
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
    }

    .profile-stats {
        grid-template-columns: 1fr;
    }

    .card-side {
        padding: var(--spacing-md);
        min-height: 250px;
    }

    .card-front .card-question-centered,
    .card-back .card-answer-bottom {
        font-size: 1.2rem;
    }

    .rating-buttons {
        grid-template-columns: repeat(2, 1fr);
    }

    .filters-bar {
        flex-direction: column;
    }

    .filter-group {
        width: 100%;
    }

    .filter-group select,
    .filter-group input {
        width: 100%;
    }

    .cards-table-container {
        overflow-x: auto;
    }

    .cards-table {
        min-width: 600px;
    }

    .study-area {
        max-width: 100%;
    }

    .tag-filter-form {
        flex-direction: column;
    }

    .tag-filter-input {
        width: 100%;
    }
}

/* Available Tags Display */
.available-tags {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg-alt);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.available-tags-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.available-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag-clickable {
    cursor: pointer;
    transition: all 0.15s ease;
}

.tag-clickable:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-1px);
}

/* Draft Tags Container */
.draft-tags-container {
    margin-top: var(--spacing-sm);
    min-height: 30px;
}

/* Remove Tag Button */
.btn-remove-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-left: 4px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: 50%;
    font-size: 14px;
    line-height: 1;
    transition: all 0.15s ease;
}

.btn-remove-tag:hover {
    background: var(--color-danger);
    color: white;
}

/* Available Tags Area */
.available-tags {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg-alt);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.available-tags-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.available-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

/* Pending Cards */
.pending-card-item {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background: var(--color-bg);
    transition: all 0.15s ease;
}

.pending-card-item:hover {
    border-color: var(--color-text);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.pending-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.pending-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.status-badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 4px;
    text-transform: capitalize;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
}

.status-approved {
    background: #d4edda;
    color: #155724;
}

.status-rejected {
    background: #f8d7da;
    color: #721c24;
}

.status-imported {
    background: #d1ecf1;
    color: #0c5460;
}

.created-date {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.pending-card-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.pending-card-content {
    margin-bottom: var(--spacing-md);
}

.source-text {
    padding: var(--spacing-sm);
    background: var(--color-bg-alt);
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.source-text strong {
    color: var(--color-text);
}

.card-question {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.card-answer {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.pending-card-detail {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border-radius: 4px;
}

.pending-card-detail-view {
    display: grid;
    gap: var(--spacing-sm);
}

.detail-row {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
}

.detail-row--full {
    flex-direction: column;
    gap: var(--spacing-xs);
}

.detail-label {
    font-weight: 500;
    color: var(--color-text-muted);
    min-width: 100px;
}

.detail-value {
    color: var(--color-text);
}

.detail-value--text {
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: 4px;
    line-height: 1.5;
}

.detail-value--metadata pre {
    margin: 0;
    font-size: 0.75rem;
    white-space: pre-wrap;
    word-break: break-all;
}

.pending-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.pending-card-footer .btn {
    font-size: 0.85rem;
    padding: var(--spacing-xs) var(--spacing-sm);
}

.btn-reject {
    color: var(--color-danger);
}

.btn-reject:hover {
    background: #fff5f5;
}

.status-note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.status-note--rejected {
    color: var(--color-danger);
}

.status-note--imported {
    color: #0c5460;
}

.empty-state-hint {
    font-size: 0.9rem;
}

/* Success Message */
.success-message {
    color: #155724;
    font-size: 0.9rem;
}