/* =========================================================
   SMART TIMETABLE GENERATOR
   PROFESSIONAL UI FOUNDATION
   Stage 1 — CSS Foundation
   ========================================================= */


/* =========================================================
   1. GLOBAL RESET
   ========================================================= */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #eff6ff;

    --success: #16a34a;
    --success-dark: #15803d;
    --success-light: #f0fdf4;

    --danger: #dc2626;
    --danger-light: #fef2f2;

    --warning: #d97706;
    --warning-light: #fffbeb;

    --info: #0891b2;
    --info-light: #ecfeff;

    --dark: #0f172a;
    --dark-2: #1e293b;
    --dark-3: #334155;

    --text: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;

    --border: #e2e8f0;
    --border-dark: #cbd5e1;

    --background: #f4f7fb;
    --surface: #ffffff;
    --surface-soft: #f8fafc;

    --radius-sm: 7px;
    --radius-md: 10px;
    --radius-lg: 14px;

    --shadow-sm:
        0 1px 2px rgba(15, 23, 42, 0.04);

    --shadow-md:
        0 4px 12px rgba(15, 23, 42, 0.06);

    --shadow-lg:
        0 10px 30px rgba(15, 23, 42, 0.08);

    --transition: 0.2s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Arial,
        sans-serif;

    background: var(--background);
    color: var(--text);

    font-size: 14px;
    line-height: 1.5;

    min-height: 100vh;
}


/* =========================================================
   2. TOP BAR
   ========================================================= */

.topbar {
    height: 72px;

    background: var(--surface);

    border-bottom: 1px solid var(--border);

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0 28px;

    position: sticky;
    top: 0;

    z-index: 100;

    box-shadow: var(--shadow-sm);
}


/* BRAND */

.brand {
    display: flex;
    align-items: center;
    gap: 12px;

    min-width: 0;
}

.brand-icon {
    width: 44px;
    height: 44px;

    flex-shrink: 0;

    display: flex;
    align-items: center;
    justify-content: center;

    background: linear-gradient(
        135deg,
        #2563eb,
        #1d4ed8
    );

    color: #ffffff;

    border-radius: 11px;

    font-size: 21px;

    box-shadow:
        0 4px 10px rgba(37, 99, 235, 0.25);
}

.brand h1 {
    font-size: 19px;

    line-height: 1.2;

    font-weight: 700;

    color: var(--dark);
}

.brand p {
    font-size: 12px;

    color: var(--text-muted);

    margin-top: 3px;
}


/* SCHOOL INFORMATION */

.school-info {
    display: flex;
    align-items: center;
    gap: 12px;

    color: var(--text-secondary);

    font-weight: 600;

    min-width: 0;
}

.topbar-meta {
    display: flex;
    align-items: center;
}

.app-badge {
    display: inline-flex;
    align-items: center;

    padding: 5px 10px;

    background: var(--primary-light);

    color: var(--primary);

    border-radius: 999px;

    font-size: 11px;

    font-weight: 700;

    white-space: nowrap;
}

#schoolName {
    max-width: 260px;

    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}


/* =========================================================
   3. APPLICATION LAYOUT
   ========================================================= */

.app-container {
    display: flex;

    min-height: calc(100vh - 72px);
}


/* =========================================================
   4. SIDEBAR
   ========================================================= */

.sidebar {
    width: 250px;

    flex-shrink: 0;

    background: var(--dark);

    padding: 20px 14px;

    display: flex;
    flex-direction: column;

    position: sticky;

    top: 72px;

    height: calc(100vh - 72px);

    overflow-y: auto;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;

    gap: 5px;

    width: 100%;
}


/* NAVIGATION BUTTON */

.nav-btn {
    width: 100%;

    border: none;

    background: transparent;

    color: #cbd5e1;

    padding: 11px 13px;

    border-radius: 8px;

    text-align: left;

    cursor: pointer;

    font-size: 14px;

    font-weight: 500;

    transition:
        background var(--transition),
        color var(--transition),
        transform var(--transition);

    display: flex;
    align-items: center;

    gap: 8px;
}

.nav-btn:hover {
    background: var(--dark-2);

    color: #ffffff;
}

.nav-btn:active {
    transform: scale(0.98);
}

.nav-btn.active {
    background: var(--primary);

    color: #ffffff;

    font-weight: 600;

    box-shadow:
        0 4px 12px rgba(37, 99, 235, 0.25);
}


/* SIDEBAR DIVIDER */

.sidebar-divider {
    height: 1px;

    background: rgba(148, 163, 184, 0.2);

    margin: 13px 4px;
}


/* GENERATE BUTTON */

.generate-btn {
    width: 100%;

    border: none;

    background: linear-gradient(
        135deg,
        #16a34a,
        #15803d
    );

    color: #ffffff;

    padding: 12px 14px;

    border-radius: 8px;

    cursor: pointer;

    font-weight: 700;

    font-size: 14px;

    margin-bottom: 3px;

    transition:
        transform var(--transition),
        box-shadow var(--transition),
        background var(--transition);

    box-shadow:
        0 4px 12px rgba(22, 163, 74, 0.2);
}

.generate-btn:hover {
    background: linear-gradient(
        135deg,
        #15803d,
        #166534
    );

    box-shadow:
        0 6px 16px rgba(22, 163, 74, 0.28);

    transform: translateY(-1px);
}

.generate-btn:active {
    transform: translateY(0);
}


/* =========================================================
   5. MAIN CONTENT
   ========================================================= */

.content {
    flex: 1;

    width: 100%;

    padding: 30px;

    max-width: 1700px;

    margin: 0 auto;

    overflow-x: hidden;
}


/* =========================================================
   6. SECTIONS
   ========================================================= */

.section {
    display: none;

    animation: sectionFade 0.2s ease;
}

.section.active {
    display: block;
}

@keyframes sectionFade {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* =========================================================
   7. PAGE HEADINGS
   ========================================================= */

.page-heading {
    display: flex;

    justify-content: space-between;

    align-items: flex-start;

    gap: 20px;

    margin-bottom: 24px;
}

.page-heading h2 {
    font-size: 25px;

    line-height: 1.25;

    font-weight: 750;

    color: var(--dark);

    letter-spacing: -0.3px;
}

.page-heading h3 {
    font-size: 18px;

    color: var(--dark);
}

.page-heading p {
    color: var(--text-muted);

    margin-top: 6px;

    line-height: 1.5;
}


/* =========================================================
   8. STATISTICS
   ========================================================= */

.stats-grid {
    display: grid;

    grid-template-columns:
        repeat(4, minmax(0, 1fr));

    gap: 16px;

    margin-bottom: 24px;
}

.stat-card {
    background: var(--surface);

    border: 1px solid var(--border);

    border-radius: var(--radius-lg);

    padding: 20px;

    display: flex;

    align-items: center;

    gap: 14px;

    box-shadow: var(--shadow-sm);

    transition:
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);

    box-shadow: var(--shadow-md);

    border-color: #d7dee9;
}

.stat-icon {
    width: 48px;
    height: 48px;

    flex-shrink: 0;

    border-radius: 11px;

    background: var(--primary-light);

    display: flex;
    align-items: center;
    justify-content: center;

    font-size: 21px;
}

.stat-card span {
    display: block;

    color: var(--text-muted);

    font-size: 12px;

    font-weight: 600;

    margin-bottom: 3px;

    text-transform: uppercase;

    letter-spacing: 0.3px;
}

.stat-card strong {
    display: block;

    font-size: 25px;

    line-height: 1.2;

    color: var(--dark);

    font-weight: 750;
}


/* =========================================================
   9. GENERAL CARDS
   ========================================================= */

.card,
.setup-card,
.info-card,
.form-card {
    background: var(--surface);

    border: 1px solid var(--border);

    border-radius: var(--radius-lg);

    box-shadow: var(--shadow-sm);
}

.card,
.setup-card,
.info-card {
    padding: 24px;

    margin-bottom: 20px;
}

.card h3,
.setup-card h3,
.info-card h3,
.form-card h3 {
    color: var(--dark);

    font-size: 17px;

    font-weight: 700;

    margin-bottom: 8px;
}

.setup-card > p {
    color: var(--text-muted);

    margin-bottom: 20px;
}


/* =========================================================
   10. FORMS
   ========================================================= */

.form-card {
    padding: 24px;

    margin-top: 20px;

    margin-bottom: 20px;
}

.form-card-header {
    margin-bottom: 20px;
}

.form-card-header h3 {
    margin-bottom: 0;
}


/* FORM ROW */

.form-row {
    display: grid;

    grid-template-columns:
        repeat(2, minmax(0, 1fr));

    gap: 16px;
}


/* FORM GRID */

.form-grid {
    display: grid;

    grid-template-columns:
        repeat(auto-fit, minmax(220px, 1fr));

    gap: 17px;
}


/* FORM GROUP */

.form-group {
    display: flex;

    flex-direction: column;

    gap: 6px;

    margin-bottom: 16px;
}

.form-grid .form-group {
    margin-bottom: 0;
}

.form-group label {
    display: block;

    font-size: 13px;

    font-weight: 650;

    color: var(--dark-3);
}

.form-group small {
    font-size: 11px;

    line-height: 1.4;

    color: var(--text-muted);
}


/* INPUTS */

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;

    min-height: 42px;

    padding: 10px 12px;

    border: 1px solid var(--border-dark);

    border-radius: 8px;

    background: #ffffff;

    color: var(--text);

    font-family: inherit;

    font-size: 14px;

    transition:
        border-color var(--transition),
        box-shadow var(--transition),
        background var(--transition);
}

.form-group input::placeholder {
    color: #94a3b8;
}

.form-group input:hover,
.form-group select:hover {
    border-color: #94a3b8;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;

    border-color: var(--primary);

    box-shadow:
        0 0 0 3px rgba(37, 99, 235, 0.1);
}


/* READONLY */

.form-group input[readonly] {
    background: var(--surface-soft);

    color: var(--text-secondary);

    cursor: default;
}


/* DISABLED */

.form-group input:disabled,
.form-group select:disabled {
    background: #f1f5f9;

    color: #94a3b8;

    cursor: not-allowed;
}


/* CHECKBOX GROUP */

.checkbox-group {
    justify-content: center;
}

.checkbox-group label {
    display: flex;

    align-items: center;

    gap: 9px;

    min-height: 42px;

    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 17px;
    height: 17px;

    min-height: 17px;

    accent-color: var(--primary);

    cursor: pointer;
}


/* =========================================================
   11. FORM ACTIONS
   ========================================================= */

.form-actions {
    display: flex;

    justify-content: flex-end;

    align-items: center;

    flex-wrap: wrap;

    gap: 10px;

    margin-top: 20px;

    padding-top: 18px;

    border-top: 1px solid var(--border);
}


/* =========================================================
   12. BUTTONS
   ========================================================= */

.primary-btn,
.secondary-btn {
    min-height: 40px;

    padding: 9px 16px;

    border-radius: 8px;

    cursor: pointer;

    font-family: inherit;

    font-size: 13px;

    font-weight: 650;

    transition:
        background var(--transition),
        border-color var(--transition),
        color var(--transition),
        box-shadow var(--transition),
        transform var(--transition);

    white-space: nowrap;
}


/* PRIMARY */

.primary-btn {
    border: 1px solid var(--primary);

    background: var(--primary);

    color: #ffffff;

    box-shadow:
        0 2px 5px rgba(37, 99, 235, 0.15);
}

.primary-btn:hover {
    background: var(--primary-dark);

    border-color: var(--primary-dark);

    box-shadow:
        0 4px 10px rgba(37, 99, 235, 0.2);

    transform: translateY(-1px);
}

.primary-btn:active,
.secondary-btn:active {
    transform: translateY(0);
}


/* SECONDARY */

.secondary-btn {
    border: 1px solid var(--border-dark);

    background: #ffffff;

    color: var(--text-secondary);
}

.secondary-btn:hover {
    background: var(--surface-soft);

    border-color: #94a3b8;

    color: var(--dark);
}


/* =========================================================
   13. DATA TABLES
   ========================================================= */

.data-card,
.data-container {
    background: var(--surface);

    border: 1px solid var(--border);

    border-radius: var(--radius-lg);

    overflow: hidden;

    box-shadow: var(--shadow-sm);
}

.data-table {
    width: 100%;

    border-collapse: collapse;

    min-width: 650px;
}

.data-table th {
    background: var(--surface-soft);

    color: var(--text-secondary);

    font-size: 11px;

    font-weight: 750;

    text-transform: uppercase;

    letter-spacing: 0.4px;

    text-align: left;

    padding: 13px 14px;

    border-bottom: 1px solid var(--border);

    white-space: nowrap;
}

.data-table td {
    padding: 13px 14px;

    border-bottom: 1px solid #f1f5f9;

    font-size: 13px;

    color: var(--text-secondary);

    vertical-align: middle;
}

.data-table tbody tr {
    transition:
        background var(--transition);
}

.data-table tbody tr:hover {
    background: #f8fafc;
}

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


/* =========================================================
   14. TABLE ACTION BUTTONS
   ========================================================= */

.action-btn {
    border: none;

    padding: 7px 10px;

    border-radius: 6px;

    cursor: pointer;

    margin-right: 5px;

    font-size: 12px;

    font-weight: 600;

    transition:
        transform var(--transition),
        background var(--transition);
}

.action-btn:hover {
    transform: translateY(-1px);
}

.edit-btn {
    background: var(--primary-light);

    color: var(--primary);
}

.edit-btn:hover {
    background: #dbeafe;
}

.delete-btn {
    background: var(--danger-light);

    color: var(--danger);
}

.delete-btn:hover {
    background: #fee2e2;
}


/* =========================================================
   15. EMPTY / LOADING STATES
   ========================================================= */

.loading-message,
.empty-message {
    padding: 42px 20px;

    text-align: center;

    color: var(--text-muted);

    font-size: 13px;
}

.empty-state {
    background: #ffffff;

    border: 1px dashed var(--border-dark);

    border-radius: var(--radius-lg);

    padding: 60px 20px;

    text-align: center;

    color: var(--text-muted);
}

.empty-state > div {
    width: 64px;
    height: 64px;

    margin: 0 auto 16px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: var(--primary-light);

    border-radius: 50%;

    font-size: 28px;
}

.empty-state h3 {
    color: var(--dark);

    font-size: 17px;

    margin-bottom: 7px;
}

.empty-state p {
    color: var(--text-muted);

    max-width: 480px;

    margin: 0 auto;

    line-height: 1.6;
}


/* =========================================================
   16. INFORMATION CARD
   ========================================================= */

.info-card ol {
    padding-left: 22px;

    color: var(--text-secondary);
}

.info-card li {
    margin-bottom: 9px;

    padding-left: 3px;
}

.info-card li:last-child {
    margin-bottom: 0;
}


/* =========================================================
   17. SETUP ROADMAP
   ========================================================= */

.setup-roadmap {
    background: linear-gradient(
        135deg,
        #ffffff,
        #f8fafc
    );

    border: 1px solid var(--border);

    border-radius: var(--radius-lg);

    padding: 24px;

    margin-bottom: 20px;

    box-shadow: var(--shadow-sm);
}

.setup-roadmap h3 {
    color: var(--dark);

    font-size: 17px;

    margin-bottom: 7px;
}

.setup-roadmap > p {
    color: var(--text-muted);

    margin-bottom: 18px;
}

.setup-roadmap ol {
    padding-left: 25px;

    color: var(--text-secondary);
}

.setup-roadmap li {
    margin-bottom: 9px;

    padding-left: 4px;
}

.setup-roadmap li:last-child {
    margin-bottom: 0;
}


/* =========================================================
   18. GENERATOR WORKFLOW
   ========================================================= */

.generator-workflow {
    background: var(--primary-light);

    border: 1px solid #dbeafe;

    border-left: 4px solid var(--primary);

    color: #1e40af;

    padding: 13px 16px;

    border-radius: 8px;

    margin-bottom: 20px;

    font-size: 13px;

    line-height: 1.5;
}


/* =========================================================
   19. TIMETABLE SUMMARY
   ========================================================= */

#timetableSummaryContent {
    grid-template-columns:
        repeat(auto-fit, minmax(150px, 1fr));
}

#timetableSummaryContent > * {
    background: var(--surface-soft);

    border: 1px solid var(--border);

    border-radius: 9px;

    padding: 14px;
}


/* =========================================================
   20. TIMETABLE AREA
   ========================================================= */

#timetableContent {
    overflow-x: auto;
}

#timetableContent table {
    min-width: 850px;
}


/* =========================================================
   21. CONFLICTS
   ========================================================= */

#timetableConflicts {
    border-color: #fecaca;

    background: #fffafa;
}

#timetableConflicts h3 {
    color: var(--danger);
}

#timetableConflictsContent {
    color: #991b1b;
}


/* =========================================================
   22. FOOTER
   ========================================================= */

.app-footer {
    width: 100%;

    padding: 18px 30px;

    background: var(--surface);

    border-top: 1px solid var(--border);

    text-align: center;

    color: var(--text-muted);

    font-size: 11px;
}

.app-footer p {
    margin: 0;
}


/* =========================================================
   23. SCROLLBARS
   ========================================================= */

.sidebar::-webkit-scrollbar,
.data-card::-webkit-scrollbar,
.data-container::-webkit-scrollbar,
#timetableContent::-webkit-scrollbar {
    width: 7px;
    height: 7px;
}

.sidebar::-webkit-scrollbar-track,
.data-card::-webkit-scrollbar-track,
.data-container::-webkit-scrollbar-track,
#timetableContent::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb,
.data-card::-webkit-scrollbar-thumb,
.data-container::-webkit-scrollbar-thumb,
#timetableContent::-webkit-scrollbar-thumb {
    background: #94a3b8;

    border-radius: 20px;
}


/* =========================================================
   24. FOCUS ACCESSIBILITY
   ========================================================= */

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.2);

    outline-offset: 2px;
}


/* =========================================================
   25. RESPONSIVE — TABLETS
   ========================================================= */

@media (max-width: 1100px) {

    .sidebar {
        width: 220px;
    }

    .content {
        padding: 25px;
    }

    .stats-grid {
        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }

    .school-info .app-badge {
        display: none;
    }
}


/* =========================================================
   26. RESPONSIVE — SMALL TABLETS
   ========================================================= */

@media (max-width: 800px) {

    .topbar {
        padding: 0 18px;
    }

    .page-heading {
        flex-direction: column;

        align-items: stretch;

        gap: 14px;
    }

    .page-heading > .primary-btn {
        align-self: flex-start;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }

    .data-card,
    .data-container {
        overflow-x: auto;
    }
}


/* =========================================================
   27. RESPONSIVE — MOBILE
   ========================================================= */

@media (max-width: 650px) {

    .topbar {
        height: 64px;

        padding: 0 14px;
    }

    .brand-icon {
        width: 38px;
        height: 38px;

        font-size: 18px;
    }

    .brand h1 {
        font-size: 16px;
    }

    .brand p {
        display: none;
    }

    .school-info {
        display: none;
    }

    .app-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;

        height: auto;

        position: sticky;

        top: 64px;

        z-index: 90;

        padding: 8px;

        overflow-x: auto;

        overflow-y: hidden;
    }

    .sidebar-nav {
        flex-direction: row;

        width: max-content;

        gap: 5px;
    }

    .nav-btn {
        width: auto;

        min-width: max-content;

        padding: 9px 12px;

        font-size: 12px;
    }

    .generate-btn {
        width: auto;

        min-width: max-content;

        margin: 0;
    }

    .sidebar-divider {
        display: none;
    }

    .content {
        padding: 18px 14px;
    }

    .page-heading h2 {
        font-size: 21px;
    }

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

        gap: 12px;
    }

    .stat-card {
        padding: 16px;
    }

    .card,
    .setup-card,
    .info-card,
    .form-card,
    .setup-roadmap {
        padding: 18px;
    }

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

    .form-actions {
        justify-content: stretch;
    }

    .form-actions button {
        flex: 1;
    }

    .app-footer {
        padding: 15px;
    }
}


/* =========================================================
   28. VERY SMALL DEVICES
   ========================================================= */

@media (max-width: 400px) {

    .content {
        padding: 14px 10px;
    }

    .page-heading h2 {
        font-size: 19px;
    }

    .stat-card strong {
        font-size: 22px;
    }

    .card,
    .setup-card,
    .info-card,
    .form-card,
    .setup-roadmap {
        padding: 15px;
    }

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

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





/* ============================================================
   KENYAN SCHOOL TIMETABLE
   ============================================================ */

.generated-timetable {
    width: 100%;
    box-sizing: border-box;
}


/* ============================================================
   TOOLBAR
   ============================================================ */

.timetable-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    padding: 16px 18px;
    border: 1px solid #d9e0e7;
    border-radius: 10px;
    background: #ffffff;
}

.timetable-main-title {
    font-size: 22px;
    font-weight: 700;
}

.timetable-subtitle {
    margin-top: 4px;
    color: #667085;
    font-size: 14px;
}

.timetable-toolbar-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.timetable-action-btn {
    border: 1px solid #cfd6df;
    background: #ffffff;
    padding: 9px 14px;
    border-radius: 7px;
    cursor: pointer;
    font-weight: 600;
}

.timetable-action-btn:hover {
    background: #f3f6f9;
}


/* ============================================================
   STREAM
   ============================================================ */

.timetable-stream {
    margin-bottom: 35px;
    background: #ffffff;
    border: 1px solid #d7dde5;
    border-radius: 10px;
    overflow: hidden;
}

.timetable-stream-heading {
    padding: 12px 16px;
    font-size: 18px;
    font-weight: 700;
    border-bottom: 1px solid #d7dde5;
    background: #f7f9fb;
}

.stream-icon {
    margin-right: 6px;
}


/* ============================================================
   PRINT HEADER
   ============================================================ */

.print-timetable-header {
    display: none;
}


/* ============================================================
   TABLE WRAPPER
   ============================================================ */

.timetable-table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}


/* ============================================================
   TABLE
   ============================================================ */

.kenyan-timetable-table {
    width: 100%;
    min-width: 1250px;
    border-collapse: collapse;
    table-layout: fixed;
    font-size: 12px;
}


/* ============================================================
   DAY COLUMN
   ============================================================ */

.day-column-header,
.day-name-cell {
    width: 100px;
    min-width: 100px;
    max-width: 100px;
}

.day-column-header {
    background: #26384a;
    color: #ffffff;
    text-align: center;
    font-size: 12px;
    padding: 10px 6px;
    border: 1px solid #c8d0d9;
}

.day-name-cell {
    background: #eef2f6;
    color: #1f2937;
    text-align: center;
    vertical-align: middle;
    font-size: 12px;
    font-weight: 800;
    padding: 8px;
    border: 1px solid #c8d0d9;
    position: sticky;
    left: 0;
    z-index: 3;
}


/* ============================================================
   PERIOD HEADER
   ============================================================ */

.timetable-period-header {
    min-width: 90px;
    padding: 7px 5px;
    text-align: center;
    border: 1px solid #c8d0d9;
    vertical-align: middle;
}

.period-time {
    font-weight: 700;
    font-size: 11px;
    white-space: nowrap;
}

.period-name {
    margin-top: 3px;
    font-size: 10px;
    font-weight: 500;
}


/* ============================================================
   PERIOD TYPES
   ============================================================ */

.period-lesson {
    background: #eaf1f8;
}

.period-assembly {
    background: #e8edf2;
}

.period-break {
    background: #f5f0df;
}

.period-lunch {
    background: #eee8dd;
}

.period-activity {
    background: #e8efe8;
}


/* ============================================================
   CELLS
   ============================================================ */

.timetable-cell {
    height: 78px;
    padding: 7px;
    border: 1px solid #c8d0d9;
    text-align: center;
    vertical-align: middle;
}

.lesson-cell {
    background: #ffffff;
}

.lesson-cell:hover {
    background: #f7fafc;
}

.lesson-subject {
    font-weight: 800;
    font-size: 12px;
    line-height: 1.25;
}

.lesson-teacher {
    margin-top: 5px;
    font-size: 10px;
    line-height: 1.2;
    color: #4b5563;
}

.lesson-room {
    margin-top: 4px;
    font-size: 10px;
    font-weight: 600;
    color: #667085;
}


/* ============================================================
   SPECIAL PERIOD CELLS
   ============================================================ */

.non-teaching-cell {
    font-weight: 700;
    text-align: center;
}

.special-period {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60px;
}

.special-period-icon {
    font-size: 17px;
    margin-bottom: 4px;
}

.special-period-name {
    font-size: 10px;
    line-height: 1.25;
}

.period-break,
.period-lunch {
    opacity: 0.95;
}

.empty-lesson-cell {
    background: #fafafa;
}

.empty-lesson {
    color: #b0b8c2;
    font-size: 18px;
}


/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 800px) {

    .timetable-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .timetable-toolbar-actions {
        width: 100%;
    }

    .timetable-action-btn {
        flex: 1;
    }

}


/* ============================================================
   PRINT
   ============================================================ */
@media print {

    @page {
        size: A4 landscape;
        margin: 8mm;
    }

    html,
    body {
        margin: 0 !important;
        padding: 0 !important;
        background: #ffffff !important;
    }

    body * {
        visibility: hidden;
    }

    .generated-timetable,
    .generated-timetable * {
        visibility: visible;
    }


    /* =========================================================
       SMART TIMETABLE PRINT MODE
       ========================================================= */

    body.printing-timetable * {
        visibility: hidden;
    }

    body.printing-timetable
    .printable-timetable,
    body.printing-timetable
    .printable-timetable * {
        visibility: visible;
    }

    body.printing-timetable
    .printable-timetable {
        position: relative !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        left: 0 !important;
        top: 0 !important;
    }

    body.printing-timetable
    .timetable-toolbar {
        display: none !important;
    }

    body.printing-timetable
    button {
        display: none !important;
    }

    body.printing-timetable
    .timetable-table-wrapper {
        width: 100% !important;
        overflow: visible !important;
    }

    body.printing-timetable
    .timetable-stream {
        page-break-after: always;
        break-after: page;
    }

    body.printing-timetable
    .timetable-stream:last-child {
        page-break-after: auto;
        break-after: auto;
    }

   

   
    .generated-timetable {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        max-width: 100%;
    }

    .timetable-toolbar {
        display: none !important;
    }

    .timetable-stream-heading {
        display: none !important;
    }

    .timetable-stream {
        display: block;
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none;
        border-radius: 0;
        overflow: visible;
        page-break-after: always;
        break-after: page;
        box-sizing: border-box !important;
    }

    .timetable-stream:last-child {
        page-break-after: auto;
        break-after: auto;
    }

    /* =========================================
       PRINT HEADER
       ========================================= */

    .print-timetable-header {
        display: block !important;
        width: 100% !important;
        text-align: center;
        margin: 0 0 2mm 0 !important;
        padding: 0 !important;
    }

    .print-school-name {
        font-size: 18px;
        font-weight: 800;
        text-transform: uppercase;
    }

    .print-timetable-title {
        margin-top: 2px;
        font-size: 15px;
        font-weight: 700;
    }

    .print-timetable-meta {
        margin-top: 2px;
        font-size: 10px;
    }

    /* =========================================
       TABLE
       ========================================= */

    .timetable-table-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: visible !important;
        margin: 0 !important;
        padding: 0 !important;
        box-sizing: border-box !important;
    }

    .kenyan-timetable-table {
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        table-layout: fixed !important;
        border-collapse: collapse !important;
        box-sizing: border-box !important;
        font-size: 8px !important;
    }

    /* =========================================
       DAY COLUMN
       ========================================= */

    .day-column-header,
    .day-name-cell {
        width: 15mm !important;
        min-width: 15mm !important;
        max-width: 15mm !important;
        box-sizing: border-box !important;
    }

    /* =========================================
       TOP PERIOD HEADER
       ========================================= */

    .timetable-period-header {
        height: 24mm !important;
        padding: 3px 2px !important;
        vertical-align: middle !important;
        box-sizing: border-box !important;
    }

    .kenyan-timetable-table thead tr {
        height: 24mm !important;
    }

    .period-time {
        font-size: 7px !important;
        line-height: 1.1 !important;
    }

    .period-name {
        font-size: 6px !important;
        line-height: 1.1 !important;
    }

    /* =========================================
       LESSON ROWS
       ========================================= */

    .kenyan-timetable-table tbody tr {
        height: 28mm !important;
    }

    /* =========================================
       LESSON CELLS
       ========================================= */

    .timetable-cell {
        height: 28mm !important;
        min-height: 28mm !important;
        padding: 2px 3px !important;
        vertical-align: middle !important;
        box-sizing: border-box !important;
    }

  .lesson-subject {
    font-size: 10px !important;
    font-weight: 900 !important;
    line-height: 1.15 !important;
    text-align: center !important;
}

    .lesson-teacher {
        font-size: 6px !important;
        margin-top: 1px !important;
        line-height: 1.1 !important;
    }

    .lesson-room {
        font-size: 5.5px !important;
        margin-top: 1px !important;
        line-height: 1.1 !important;
    }

    /* =========================================
       SPECIAL PERIODS
       ========================================= */

    .special-period {
        min-height: 8mm !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 1px !important;
    }

    .special-period-icon {
        display: none !important;
    }

    .special-period-name {
        font-size: 6px !important;
        font-weight: 700 !important;
        text-align: center !important;
        line-height: 1.1 !important;
    }

    /* =========================================
       DAY LABEL
       ========================================= */

    .day-name-cell {
        position: static !important;
        height: 28mm !important;
        min-height: 28mm !important;
        padding: 2px !important;
        vertical-align: middle !important;
        font-size: 8px !important;
        font-weight: 700 !important;
    }

}


.printed-date {
    font-size: 9px !important;
    font-weight: 500 !important;
}




/* =========================================
   SMART ELIMU CONNECT FOOTER
   ========================================= */

.print-footer {
    display: block !important;
    width: 100% !important;
    text-align: center !important;
    margin-top: 3mm !important;
    padding-top: 1mm !important;
    font-size: 9px !important;
    font-weight: 700 !important;
    letter-spacing: 0.3px !important;
}

/* =========================================================
   END — STAGE 1 CSS FOUNDATION
   ========================================================= */