:root {
    --bg: #f4f1ea;
    --card: #ffffff;
    --text: #1c1917;
    --text-secondary: #6b6560;
    --muted: #8a8480;
    --accent: #0d6b61;
    --accent-light: #e0f2ef;
    --accent-dark: #084c44;
    --accent-2: #d97706;
    --accent-2-light: #fef3c7;
    --error: #dc2626;
    --error-light: #fef2f2;
    --success: #15803d;
    --success-light: #f0fdf4;
    --line: #e5ddd3;
    --line-light: #f2ede6;
    --shadow-sm: 0 1px 3px rgba(28, 25, 23, 0.06), 0 1px 2px rgba(28, 25, 23, 0.04);
    --shadow-md: 0 4px 12px rgba(28, 25, 23, 0.07), 0 1px 4px rgba(28, 25, 23, 0.04);
    --shadow-lg: 0 8px 30px rgba(28, 25, 23, 0.08);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --font-sans: "Inter", "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
    --font-display: "Space Grotesk", "Inter", "IBM Plex Sans", sans-serif;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
}

::selection {
    background: var(--accent);
    color: #fff;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
    min-height: 100vh;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 32px 24px;
}

/* ─── Header / Hero ─── */

.hero {
    margin-bottom: 28px;
    text-align: center;
    padding: 40px 24px 32px;
    background: linear-gradient(135deg, #f8f5ee 0%, #eef6f4 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 600px 300px at 50% 0%, rgba(13, 107, 97, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero h1 {
    font-family: var(--font-display);
    margin: 0 0 6px;
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
    position: relative;
}

.hero h1 span {
    color: var(--accent);
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin: 0;
    position: relative;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.hero-author {
    color: var(--muted);
    font-size: 0.88rem;
    font-style: italic;
    margin-top: 8px !important;
}

/* ─── Cards ─── */

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--accent-light);
    color: var(--accent);
    font-size: 0.82rem;
    font-weight: 800;
    flex-shrink: 0;
    line-height: 1;
}

.card h2 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0 0 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
}

.step-toolbar {
    margin-bottom: 12px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ─── Upload ─── */

.upload-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.upload-form input[type="file"] {
    font-family: inherit;
    font-size: 0.9rem;
    padding: 10px 14px;
    border: 2px dashed var(--line);
    border-radius: var(--radius-sm);
    background: var(--bg);
    flex: 1;
    min-width: 200px;
    transition: border-color var(--transition), background var(--transition);
    cursor: pointer;
}

.upload-form input[type="file"]:hover {
    border-color: var(--accent);
    background: var(--accent-light);
}

.upload-form input[type="file"]::file-selector-button {
    font-family: inherit;
    font-weight: 600;
    padding: 6px 14px;
    border: none;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    margin-right: 12px;
    cursor: pointer;
    transition: background var(--transition);
}

.upload-form input[type="file"]::file-selector-button:hover {
    background: var(--accent-dark);
}

/* ─── Buttons ─── */

button, .btn, .export-link, .page-btn {
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-family: var(--font-sans);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    line-height: 1;
}

button:active {
    transform: scale(0.97);
}

button:not(.btn-secondary):not(.page-btn):not(.tab-btn):not(.accordion-header) {
    background: var(--accent);
    color: #fff;
}

button:not(.btn-secondary):not(.page-btn):not(.tab-btn):not(.accordion-header):hover {
    background: var(--accent-dark);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--accent-light);
    color: var(--accent-dark);
    border: 1px solid transparent;
}

.btn-secondary:hover {
    background: #cfe8e3;
    border-color: var(--accent);
}

.export-link {
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    border-radius: var(--radius-sm);
}

.export-link:hover {
    background: var(--accent-dark);
    box-shadow: var(--shadow-sm);
}

/* ─── Alerts ─── */

.alerts {
    display: grid;
    gap: 8px;
    margin-bottom: 20px;
}

.alert {
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 0.92rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert.error {
    background: var(--error-light);
    color: var(--error);
    border-left: 4px solid var(--error);
}

.alert.success {
    background: var(--success-light);
    color: var(--success);
    border-left: 4px solid var(--success);
}

/* ─── Meta / Muted text ─── */

.meta {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

/* ─── Warning ─── */

.warning {
    color: #92400e;
    background: var(--accent-2-light);
    border-left: 4px solid var(--accent-2);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 0.9rem;
    margin: 12px 0;
}

/* ─── Subjects Grid ─── */

.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}

.subject-item {
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all var(--transition);
    background: var(--card);
    user-select: none;
}

.subject-item:hover {
    border-color: var(--accent);
    background: var(--accent-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.subject-item:has(input:checked) {
    border-color: var(--accent);
    background: var(--accent-light);
    box-shadow: inset 0 0 0 1.5px var(--accent);
}

.subject-check {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.subject-check input[type="checkbox"] {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
    margin: 0;
    cursor: pointer;
}

.subject-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.subject-name {
    font-weight: 600;
    font-size: 0.93rem;
    line-height: 1.3;
}

.subject-meta {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* ─── Filters Bar ─── */

.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 16px;
    padding: 16px;
    background: #faf8f4;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.filter-group label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.filter-group select,
.filter-group input[type="time"],
.filter-group input[type="number"] {
    padding: 7px 10px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-family: inherit;
    background: #fff;
    transition: border-color var(--transition);
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(13, 107, 97, 0.1);
}

.filter-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    max-height: 130px;
    overflow-y: auto;
    min-width: 160px;
    padding: 6px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
}

.filter-checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    font-size: 0.8rem;
    border-radius: 6px;
    background: #f4f1ea;
    cursor: pointer;
    user-select: none;
    transition: all var(--transition);
}

.filter-checkbox-label:hover {
    background: #e8e3d9;
}

.filter-checkbox-label input[type="checkbox"] {
    margin: 0;
    accent-color: var(--accent);
}

.filter-checkbox-label:has(input:checked) {
    background: var(--accent);
    color: #fff;
}

.filter-group input[type="number"] {
    max-width: 72px;
}

.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 10px;
}

.filter-row:last-child {
    margin-bottom: 0;
}

.filter-grow {
    flex: 1;
    min-width: 180px;
}

.filter-footer {
    justify-content: space-between;
    align-items: center;
    padding-top: 8px;
    border-top: 1px solid var(--line);
}

.results-count {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.sort-criteria {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.sort-row {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: #fff;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 4px 6px;
}

.sort-select {
    padding: 4px 6px;
    border: none;
    border-radius: 4px;
    font-size: 0.82rem;
    font-family: inherit;
    background: transparent;
    color: var(--text);
    cursor: pointer;
}

.sort-select:focus {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.sort-dir-btn, .sort-remove-btn {
    width: 22px;
    height: 22px;
    padding: 0;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.sort-dir-btn {
    background: var(--accent-light);
    color: var(--accent);
    border: 1px solid transparent;
}

.sort-dir-btn:hover {
    background: var(--accent);
    color: #fff;
}

.sort-remove-btn {
    background: transparent;
    color: var(--muted);
    border: 1px solid transparent;
}

.sort-remove-btn:hover {
    background: var(--error-light);
    color: var(--error);
}

/* ─── Pagination ─── */

.pagination-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    justify-content: center;
    margin: 16px 0;
    padding: 12px 16px;
    background: #faf8f4;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
}

.page-btn {
    padding: 8px 16px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    transition: all var(--transition);
}

.page-btn:not(:disabled):hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.page-btn:disabled {
    opacity: 0.35;
    cursor: default;
}

.page-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
}

/* ─── Footer ─── */

.footer {
    text-align: center;
    padding: 24px 16px 32px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    font-size: 0.82rem;
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

.footer a:hover {
    color: var(--accent);
}

.footer-author {
    color: var(--muted);
    font-style: italic;
    font-size: 0.82rem;
}

/* ─── Accordion ─── */

.accordion {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.accordion-individuales {
    margin-top: 12px;
}

.accordion-item {
    border: 1.5px solid var(--line);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--card);
    transition: box-shadow var(--transition);
}

.accordion-item:hover {
    box-shadow: var(--shadow-sm);
}

.accordion-item-individual {
    background: #fafcfa;
    border-color: #b8d9c4;
}

.section-subtitle {
    margin-top: 28px;
    margin-bottom: 10px;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 6px;
    font-family: var(--font-display);
}

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: #faf8f4;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    font-size: 0.92rem;
    color: var(--text);
    gap: 12px;
    transition: background var(--transition);
}

.accordion-header:hover {
    background: #f2ede6;
}

.accordion-summary {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.accordion-id {
    font-weight: 700;
    color: var(--accent);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.accordion-materias {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.accordion-meta {
    color: var(--text-secondary);
    font-size: 0.82rem;
    white-space: nowrap;
}

.accordion-hours {
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--accent-dark);
    background: var(--accent-light);
    padding: 3px 10px;
    border-radius: 6px;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.accordion-icon {
    font-size: 0.65rem;
    color: var(--muted);
    transition: transform var(--transition);
    flex-shrink: 0;
}

.accordion-header[aria-expanded="true"] .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    display: none;
    padding: 18px;
    border-top: 1px solid var(--line);
    background: var(--card);
}

.accordion-content.open {
    display: block;
    animation: fadeSlideIn 0.25s ease;
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.accordion-actions {
    margin-bottom: 12px;
}

/* ─── Tabs ─── */

.view-tabs {
    display: flex;
    gap: 6px;
    margin: 12px 0 14px;
}

.tab-btn {
    background: var(--accent-light);
    color: var(--accent-dark);
    border-radius: var(--radius-sm);
    padding: 8px 16px;
    font-size: 0.82rem;
    font-weight: 600;
    border: 1px solid transparent;
    transition: all var(--transition);
}

.tab-btn:hover {
    background: #cfe8e3;
}

.tab-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeSlideIn 0.2s ease;
}

/* ─── Tables ─── */

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

th, td {
    border: 1px solid var(--line);
    padding: 8px 12px;
    text-align: left;
}

th {
    background: #f6f0e8;
    font-weight: 700;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
}

tr:not(.weekly-table tr):hover td {
    background: #faf8f4;
}

.weekly-table th,
.weekly-table td {
    vertical-align: top;
}

.slot-cell {
    white-space: nowrap;
    font-weight: 700;
    background: #faf8f4;
    color: var(--text-secondary);
    font-size: 0.82rem;
}

.event-chip {
    border: 1px solid #d1e6e2;
    border-radius: var(--radius-sm);
    padding: 8px;
    margin: 4px 0;
    background: #f4fbfa;
    line-height: 1.35;
    font-size: 0.82rem;
    transition: box-shadow var(--transition);
}

.event-chip:hover {
    box-shadow: var(--shadow-sm);
}

.materia-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

/* ─── Recent Docs ─── */

.docs-grid {
    display: grid;
    gap: 10px;
    margin-top: 12px;
    grid-template-columns: 1fr;
}

.doc-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 18px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--card);
    transition: all var(--transition);
    max-width: 600px;
}

.doc-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.doc-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
    flex: 1;
}

.doc-name {
    font-size: 0.95rem;
    font-weight: 600;
}

.doc-meta {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.doc-subjects {
    font-size: 0.8rem;
    color: var(--muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ─── Export ─── */

.export-sheet {
    max-width: 1200px;
}

.export-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.no-print {
    display: block;
}

/* ─── Responsive ─── */

@media (max-width: 800px) {
    .container {
        padding: 16px;
    }

    .hero {
        padding: 28px 16px 24px;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .hero p {
        font-size: 0.95rem;
    }

    .card {
        padding: 18px;
    }

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

    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-row {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-grow {
        min-width: 100%;
    }

    .accordion-summary {
        flex-direction: column;
        align-items: flex-start;
    }

    .doc-card {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .doc-card form {
        align-self: flex-end;
    }
}

@media (max-width: 500px) {
    .subjects-grid {
        grid-template-columns: 1fr;
    }

    .upload-form {
        flex-direction: column;
    }

    .upload-form input[type="file"] {
        min-width: 100%;
    }
}

/* ─── Exclusion Filters (nested) ─── */

.exclusion-filters {
    margin-top: 1rem;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--card);
}

.exclusion-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #fdf8f0 0%, #f0faf8 100%);
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    transition: background var(--transition);
}

.exclusion-toggle:hover {
    background: linear-gradient(135deg, #f5eedf 0%, #e5f5f2 100%);
}

.exclusion-icon {
    font-size: 0.7rem;
    color: var(--accent);
    flex-shrink: 0;
}

.exclusion-body {
    display: none;
    padding: 16px;
    border-top: 1px solid var(--line);
    background: #faf8f4;
}

.exclusion-body.open {
    display: block;
    animation: fadeSlideIn 0.2s ease;
}

.exclusion-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}

.exclusion-tab {
    padding: 7px 16px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.exclusion-tab:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.exclusion-tab.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.exclusion-panel {
    display: none;
}

.exclusion-panel.active {
    display: block;
}

.exclusion-panel-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.exclusion-search {
    flex: 1 1 100%;
    padding: 8px 12px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-family: inherit;
    background: #fff;
    transition: border-color var(--transition);
}

.exclusion-search:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(13, 107, 97, 0.1);
}

.exclusion-nested-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 50vh;
    min-height: 200px;
    overflow-y: auto;
    padding: 4px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
}

.exclusion-group {
    border: 1px solid var(--line-light);
    border-radius: var(--radius-sm);
    background: #fff;
    transition: box-shadow var(--transition);
}

.exclusion-group:hover {
    box-shadow: var(--shadow-sm);
}

.exclusion-group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: #f8f5ee;
    cursor: pointer;
    user-select: none;
}

.exclusion-group-header:hover {
    background: #f0ede5;
}

.exclusion-group-toggle {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    padding: 0;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    text-align: left;
}

.exclusion-chevron {
    font-size: 0.6rem;
    color: var(--accent);
    flex-shrink: 0;
    transition: transform var(--transition);
}

.exclusion-group.open .exclusion-chevron {
    transform: rotate(90deg);
}

.exclusion-group-header input[type="checkbox"] {
    accent-color: var(--error);
    width: 15px;
    height: 15px;
    margin: 0;
    cursor: pointer;
    flex-shrink: 0;
}

.exclusion-group-items {
    display: none;
    padding: 8px 12px;
    border-top: 1px solid var(--line-light);
    background: #fff;
    max-height: 40vh;
    overflow-y: auto;
}

.exclusion-group.open .exclusion-group-items {
    display: block;
}

.exclusion-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    font-size: 0.84rem;
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
    transition: background var(--transition);
}

.exclusion-item:hover {
    background: #f4f1ea;
}

.exclusion-item:has(input:checked) {
    background: #fef2f2;
    color: var(--error);
}

.exclusion-item input[type="checkbox"] {
    accent-color: var(--error);
    width: 14px;
    height: 14px;
    margin: 0;
    cursor: pointer;
    flex-shrink: 0;
}

.inclusion-group .exclusion-group-header {
    background: #f0faf4;
}

.inclusion-group .exclusion-group-header:hover {
    background: #e2f5eb;
}

.inclusion-group .exclusion-group-header input[type="checkbox"] {
    accent-color: var(--success);
}

.inclusion-group .exclusion-item:has(input:checked) {
    background: #f0fdf4;
    color: var(--success);
}

.inclusion-group .exclusion-item input[type="checkbox"] {
    accent-color: var(--success);
}

/* ─── Mode Toggle ─── */

.mode-toggle {
    display: flex;
    gap: 0;
    margin-bottom: 16px;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #f4f1ea;
}

.mode-btn {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: 0;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.mode-btn:hover {
    background: #e8e3d9;
}

.mode-btn.active {
    background: var(--accent);
    color: #fff;
}

/* ─── Manual Builder ─── */

.manual-builder {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 16px;
    min-height: 500px;
}

.manual-schedule-wrap {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.manual-schedule-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.manual-schedule-toolbar h3 {
    margin: 0;
    font-size: 1rem;
    font-family: var(--font-display);
}

.manual-schedule-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.manual-schedule {
    flex: 1;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-md);
    overflow: auto;
    background: #fff;
}

.manual-schedule table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.manual-schedule th,
.manual-schedule td {
    border: 1px solid var(--line);
    padding: 0;
    text-align: center;
    vertical-align: top;
    font-size: 0.78rem;
}

.manual-schedule th {
    background: #f6f0e8;
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    padding: 8px 4px;
    position: sticky;
    top: 0;
    z-index: 2;
}

.manual-schedule th.slot-header {
    width: 72px;
    background: #f6f0e8;
}

.manual-schedule td.slot-cell {
    background: #faf8f4;
    font-weight: 700;
    color: var(--text-secondary);
    font-size: 0.72rem;
    padding: 4px 6px;
    white-space: nowrap;
    position: sticky;
    left: 0;
    z-index: 1;
}

.manual-event {
    border-left: 3px solid var(--accent);
    border-radius: 0 4px 4px 0;
    padding: 3px 5px;
    margin: 1px 0;
    background: #f0faf8;
    font-size: 0.72rem;
    line-height: 1.25;
    text-align: left;
    cursor: pointer;
    transition: box-shadow var(--transition);
}

.manual-event:hover {
    box-shadow: var(--shadow-sm);
}

.manual-event.conflict {
    border-left-color: var(--error);
    background: #fef2f2;
    animation: conflictPulse 0.4s ease;
}

@keyframes conflictPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.manual-event strong {
    display: block;
    font-size: 0.74rem;
}

.manual-event .ev-detail {
    color: var(--text-secondary);
    font-size: 0.68rem;
}

.manual-panel {
    display: flex;
    flex-direction: column;
    border: 1.5px solid var(--line);
    border-radius: var(--radius-md);
    background: #faf8f4;
    overflow: hidden;
}

.manual-panel-header {
    padding: 12px 14px;
    border-bottom: 1px solid var(--line);
    background: #f6f0e8;
}

.manual-panel-header h3 {
    margin: 0 0 8px;
    font-size: 0.95rem;
    font-family: var(--font-display);
}

.manual-subjects {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.manual-subj-card {
    border: 1.5px solid var(--line);
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    background: #fff;
    overflow: hidden;
    transition: all var(--transition);
}

.manual-subj-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

.manual-subj-card.active {
    border-color: var(--accent);
    box-shadow: inset 0 0 0 1.5px var(--accent);
}

.manual-subj-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    cursor: pointer;
    user-select: none;
    background: #f8f5ee;
}

.manual-subj-header:hover {
    background: #f0ede5;
}

.manual-subj-name {
    flex: 1;
    font-weight: 600;
    font-size: 0.85rem;
}

.manual-subj-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: #eee8dd;
    padding: 2px 8px;
    border-radius: 10px;
}

.manual-subj-chevron {
    font-size: 0.6rem;
    color: var(--accent);
}

.manual-subj-options {
    display: none;
    border-top: 1px solid var(--line-light);
}

.manual-subj-card.open .manual-subj-options {
    display: block;
}

.manual-nrc-option {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--line-light);
    cursor: pointer;
    transition: background var(--transition);
}

.manual-nrc-option:last-child {
    border-bottom: none;
}

.manual-nrc-option:hover {
    background: #f0faf8;
}

.manual-nrc-option.selected {
    background: var(--accent-light);
}

.manual-nrc-option.has-conflict {
    background: #fef2f2;
}

.manual-nrc-radio {
    margin-top: 2px;
    accent-color: var(--accent);
    flex-shrink: 0;
}

.manual-nrc-info {
    flex: 1;
    min-width: 0;
}

.manual-nrc-nrc {
    font-weight: 700;
    font-size: 0.82rem;
}

.manual-nrc-prof {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.manual-nrc-schedule {
    font-size: 0.72rem;
    color: var(--muted);
    margin-top: 2px;
}

.manual-selected-list {
    border-top: 1px solid var(--line);
    padding: 10px 14px;
    background: #f0faf4;
}

.manual-selected-list h4 {
    margin: 0 0 8px;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--success);
}

.manual-sel-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 0;
    font-size: 0.82rem;
}

.manual-sel-remove {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 1.5px solid var(--error);
    background: transparent;
    color: var(--error);
    font-size: 0.7rem;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition);
}

.manual-sel-remove:hover {
    background: var(--error);
    color: #fff;
}

/* ─── Manual Suggestions ─── */

.manual-suggestions {
    margin-top: 1rem;
    background: var(--accent-light);
    border: 1.5px solid var(--accent);
    border-radius: var(--radius);
    padding: 0.9rem;
    max-height: 45vh;
    overflow-y: auto;
}

.suggest-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.7rem;
}

.suggest-header h4 {
    margin: 0;
    font-size: 0.88rem;
    color: var(--accent);
}

.suggest-header button {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0 4px;
    line-height: 1;
}

.suggest-header button:hover {
    color: var(--text);
}

.suggest-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 0.7rem 0.8rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    transition: border-color var(--transition);
}

.suggest-card:hover {
    border-color: var(--accent);
}

.suggest-info {
    flex: 1;
    min-width: 0;
}

.suggest-mat {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text);
}

.suggest-nrc {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 1px;
}

.suggest-schedule {
    font-size: 0.76rem;
    color: var(--text-secondary);
    margin-top: 2px;
    line-height: 1.4;
}

.suggest-hours {
    font-size: 0.72rem;
    color: var(--accent);
    font-weight: 600;
    white-space: nowrap;
}

.suggest-add {
    flex-shrink: 0;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 5px 14px;
    font-size: 0.82rem;
    cursor: pointer;
    transition: opacity var(--transition);
}

.suggest-add:hover {
    opacity: 0.85;
}

.suggest-empty {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 1rem 0;
}

@media (max-width: 800px) {
    .manual-builder {
        grid-template-columns: 1fr;
    }
    .manual-schedule {
        min-height: 350px;
    }
}

/* ─── Print ─── */

@media print {
    body {
        background: #fff;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    .card {
        box-shadow: none;
        break-inside: avoid;
        page-break-inside: avoid;
        border: 1px solid #ddd;
    }

    .no-print {
        display: none !important;
    }

    .export-link,
    .view-tabs,
    .filters-bar,
    .pagination-bar,
    .exclusion-filters {
        display: none !important;
    }

    .accordion-content {
        display: block !important;
    }

    .accordion-header {
        cursor: default;
    }
}