:root {
    --bg: #f7f8fb;
    --fg: #111827;
    --muted: #667085;
    --placeholder: #667085;
    --card: #ffffff;
    --line: #e5e7eb;
    --soft: #f1f5f9;
    --primary: #2563eb;
    --primary-strong: #1d4ed8;
    --primary-action: #2563eb;
    --primary-action-strong: #1d4ed8;
    --primary-soft: #dbeafe;
    --emerald: #059669;
    --emerald-soft: #d1fae5;
    --amber: #d97706;
    --amber-soft: #fef3c7;
    --violet: #7c3aed;
    --violet-soft: #ede9fe;
    --danger: #dc2626;
    --danger-soft: #fee2e2;
    --sidebar: #111827;
    --sidebar-line: #263244;
    --sidebar-muted: #a8b3c4;
    --shadow: 0 14px 35px rgba(15, 23, 42, 0.08);
    --radius: 8px;
}

body.dark {
    --bg: #0b1120;
    --fg: #f8fafc;
    --muted: #cbd5e1;
    --placeholder: #d7e0ec;
    --card: #111827;
    --line: #263244;
    --soft: #182235;
    --primary: #60a5fa;
    --primary-strong: #3b82f6;
    --primary-action: #1d4ed8;
    --primary-action-strong: #1e40af;
    --primary-soft: #172554;
    --sidebar-muted: #cbd5e1;
    --emerald-soft: #064e3b;
    --amber-soft: #451a03;
    --violet-soft: #2e1065;
    --danger-soft: #450a0a;
    --shadow: 0 14px 35px rgba(0, 0, 0, 0.25);
}

* {
    box-sizing: border-box;
}

html {
    color-scheme: light;
}

body.dark {
    color-scheme: dark;
}

body {
    min-height: 100vh;
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

a {
    color: inherit;
    text-decoration: none;
}

.icon {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
}

.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 50;
    display: flex;
    width: 264px;
    flex-direction: column;
    background: var(--sidebar);
    color: #eef2ff;
    border-right: 1px solid var(--sidebar-line);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 64px;
    padding: 0 22px;
    border-bottom: 1px solid var(--sidebar-line);
    font-size: 18px;
    font-weight: 750;
}

.brand-mark {
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    color: #bfdbfe;
    background: rgba(37, 99, 235, 0.18);
    border: 1px solid rgba(191, 219, 254, 0.18);
    border-radius: var(--radius);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 14px 12px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 42px;
    margin-bottom: 4px;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: rgba(238, 242, 255, 0.72);
    font-weight: 600;
    transition: background 0.16s ease, color 0.16s ease, transform 0.16s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    box-shadow: inset 3px 0 0 var(--primary);
}

.sidebar-user {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    padding: 14px;
    border-top: 1px solid var(--sidebar-line);
}

.user-copy {
    min-width: 0;
}

.user-copy strong,
.user-copy span {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-copy span {
    color: var(--sidebar-muted);
    font-size: 12px;
}

.avatar {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 999px;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--violet));
    font-weight: 800;
}

.avatar.mini {
    width: 28px;
    height: 28px;
    font-size: 12px;
}

.app-shell {
    min-height: 100vh;
    padding-left: 264px;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 30;
    display: flex;
    height: 64px;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 24px;
    background: color-mix(in srgb, var(--bg) 90%, transparent);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
}

.topbar-title {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 12px;
}

.topbar-title > span {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: var(--primary);
    background: var(--primary-soft);
    border-radius: var(--radius);
}

.topbar-title p,
.eyebrow {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0;
}

.topbar-title h1 {
    overflow: hidden;
    margin: 0;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 18px;
    line-height: 1.2;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-button,
.profile-pill,
.time-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 36px;
    padding: 0 10px;
    color: var(--fg);
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.icon-button {
    width: 38px;
    padding: 0;
    cursor: pointer;
}

.profile-pill {
    padding-right: 12px;
    font-weight: 650;
}

.time-chip {
    color: var(--muted);
    font-weight: 700;
}

.mobile-menu-button {
    display: none;
}

.page-content {
    width: min(1480px, 100%);
    margin: 0 auto;
    padding: 24px;
}

.page-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.page-header h2,
.page-title {
    margin: 0;
    font-size: 24px;
    line-height: 1.2;
}

.page-header p,
.section-subtitle {
    max-width: 760px;
    margin: 6px 0 0;
    color: var(--muted);
}

.page-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
}

.hero {
    display: grid;
    gap: 16px;
    padding: 22px;
    color: #ffffff;
    background:
        linear-gradient(120deg, rgba(37, 99, 235, 0.96), rgba(20, 184, 166, 0.82)),
        radial-gradient(circle at 90% 10%, rgba(255, 255, 255, 0.24), transparent 28%);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero h2 {
    margin: 0;
    font-size: 28px;
    line-height: 1.2;
}

.hero p {
    margin: 6px 0 0;
    color: #fff;
}

.hero-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}

.grid {
    display: grid;
    gap: 16px;
}

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

.grid.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.cols-4,
.cards {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

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

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.card.pad,
.card > .card-body {
    padding: 18px;
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 18px 0;
}

.card-title {
    margin: 0;
    font-size: 16px;
    font-weight: 780;
}

.stat-card {
    padding: 18px;
}

.stat-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--muted);
}

.stat-value {
    margin: 14px 0 2px;
    font-size: 30px;
    line-height: 1;
    font-weight: 820;
}

.stat-label {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.quick-card {
    display: block;
    height: 100%;
    padding: 18px;
    transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.quick-card:hover {
    border-color: color-mix(in srgb, var(--primary) 35%, var(--line));
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.quick-icon,
.soft-icon {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    margin-bottom: 12px;
    color: #fff;
    background: var(--primary);
    border-radius: var(--radius);
}

.quick-icon.emerald { background: var(--emerald); }
.quick-icon.amber { background: var(--amber); }
.quick-icon.violet { background: var(--violet); }

.soft-icon {
    width: 36px;
    height: 36px;
    margin: 0;
    color: var(--primary);
    background: var(--primary-soft);
}

.list {
    display: grid;
    gap: 10px;
}

.list-item {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 12px;
    background: var(--soft);
    border-radius: var(--radius);
}

.muted {
    color: var(--muted);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 24px;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 760;
    white-space: nowrap;
}

.badge.primary { color: var(--primary-strong); background: var(--primary-soft); }
.badge.success { color: var(--emerald); background: var(--emerald-soft); }
.badge.warning { color: var(--amber); background: var(--amber-soft); }
.badge.danger { color: var(--danger); background: var(--danger-soft); }
.badge.neutral { color: var(--muted); background: var(--soft); }

.button,
button,
input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 38px;
    padding: 8px 13px;
    color: #fff;
    background: var(--primary-action, var(--primary));
    border: 1px solid var(--primary-action, var(--primary));
    border-radius: var(--radius);
    cursor: pointer;
    font: inherit;
    font-weight: 750;
    line-height: 1.2;
    transition: background 0.16s ease, transform 0.16s ease, border-color 0.16s ease;
}

.button:hover,
button:hover,
input[type="submit"]:hover {
    background: var(--primary-action-strong, var(--primary-strong));
    border-color: var(--primary-action-strong, var(--primary-strong));
}

.button.outline,
button.outline {
    color: var(--fg);
    background: var(--card);
    border-color: var(--line);
}

.button.ghost,
button.ghost {
    color: var(--fg);
    background: transparent;
    border-color: transparent;
}

.button.danger,
button.danger {
    color: #fff;
    background: var(--danger);
    border-color: var(--danger);
}

.button.small,
button.small {
    min-height: 32px;
    padding: 6px 10px;
    font-size: 12px;
}

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

.grid-form,
.inline-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 14px;
    align-items: end;
}

.inline-form {
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

label {
    display: grid;
    gap: 7px;
    color: var(--fg);
    font-size: 13px;
    font-weight: 700;
}

label.checkbox,
.checkbox-label {
    display: flex;
    min-height: 40px;
    align-items: center;
    gap: 8px;
}

input,
select,
textarea {
    width: 100%;
    min-height: 40px;
    padding: 8px 10px;
    color: var(--fg);
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    font: inherit;
    outline: none;
}

input::placeholder,
textarea::placeholder {
    color: var(--placeholder);
    opacity: 1;
}

textarea {
    min-height: 92px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
}

input[type="checkbox"] {
    width: 18px;
    min-height: 18px;
}

.table-wrap {
    overflow-x: auto;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

th,
td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    background: var(--soft);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0;
}

tr:last-child td {
    border-bottom: 0;
}

.table-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.schedule-table {
    min-width: 1080px;
    table-layout: fixed;
}

.schedule-table th:first-child,
.schedule-table td:first-child {
    width: 72px;
    text-align: center;
}

.lesson-box {
    display: grid;
    gap: 4px;
    padding: 10px;
    margin-bottom: 8px;
    background: var(--primary-soft);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius);
    font-size: 12px;
}

.lesson-box.practice { background: var(--emerald-soft); border-left-color: var(--emerald); }
.lesson-box.lab { background: var(--violet-soft); border-left-color: var(--violet); }
.lesson-box.exam { background: var(--amber-soft); border-left-color: var(--amber); }
.lesson-box.consultation { background: var(--amber-soft); border-left-color: var(--amber); }
.lesson-box.practice-industrial,
.lesson-box.practice-professional { background: rgba(217, 119, 6, 0.16); border-left-color: #d97706; }
.lesson-box.faculty { background: rgba(236, 72, 153, 0.16); border-left-color: #ec4899; }

.schedule-toolbar {
    padding: 16px;
    margin-bottom: 16px;
}

.toolbar-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
}

.toolbar-form {
    display: flex;
    flex: 1 1 520px;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
    justify-content: flex-end;
}

.toolbar-form label,
.compact-form label {
    min-width: 178px;
}

.toolbar-form label {
    flex: 1 1 190px;
    max-width: 260px;
}

.segmented-control {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 40px;
    padding: 4px;
    overflow-x: auto;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.segmented-control a,
.segmented-control span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 32px;
    padding: 6px 11px;
    color: var(--muted);
    border-radius: 6px;
    font-size: 13px;
    font-weight: 760;
    white-space: nowrap;
}

.segmented-control .active {
    color: var(--fg);
    background: var(--card);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.segmented-control .disabled {
    opacity: 0.48;
}

.schedule-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 14px;
    align-items: center;
    margin-top: 14px;
    padding-top: 14px;
    color: var(--muted);
    border-top: 1px solid var(--line);
    font-size: 13px;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--fg);
    white-space: nowrap;
}

.legend-item i {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    background: #2f7df6;
}

.legend-item i.practice { background: #10b981; }
.legend-item i.lab { background: #8b5cf6; }
.legend-item i.exam { background: #ef4444; }
.legend-item i.consultation { background: #f59e0b; }
.legend-item i.practice-industrial { background: #ea580c; }
.legend-item i.practice-professional { background: #d97706; }
.legend-item i.faculty { background: #ec4899; }

.selection-line {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin: 16px 0;
    color: var(--muted);
}

.schedule-week-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px;
    margin-bottom: 16px;
}

.schedule-week-panel h3 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-size: 18px;
}

.schedule-week-panel h3 .icon {
    color: var(--primary);
}

.schedule-week-panel p {
    margin: 6px 0 0;
    color: var(--muted);
}

.week-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
}

.schedule-board {
    border-radius: 10px;
}

.schedule-table-node {
    min-width: 1120px;
    table-layout: fixed;
}

.schedule-table-node th,
.schedule-table-node td {
    padding: 0;
    border-right: 1px solid var(--line);
}

.schedule-table-node th:last-child,
.schedule-table-node td:last-child {
    border-right: 0;
}

.schedule-table-node thead th {
    padding: 14px 10px;
    color: var(--fg);
    background: var(--soft);
    text-align: center;
    text-transform: none;
}

.schedule-table-node thead th span,
.schedule-table-node thead th small {
    display: block;
}

.schedule-table-node thead th small {
    margin-top: 2px;
    color: var(--muted);
    font-size: 11px;
}

.schedule-table-node th:first-child,
.schedule-table-node td:first-child {
    width: 142px;
}

.time-cell {
    padding: 14px 10px !important;
    text-align: center;
    vertical-align: middle;
}

.time-cell strong,
.time-cell span {
    display: block;
}

.time-cell strong {
    font-size: 13px;
}

.time-cell span {
    margin-top: 4px;
    color: var(--muted);
    font-size: 11px;
}

.schedule-cell {
    position: relative;
    height: 116px;
    padding: 8px !important;
    background: color-mix(in srgb, var(--card) 94%, #000 6%);
}

.empty-mark {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: color-mix(in srgb, var(--muted) 40%, transparent);
    font-size: 12px;
}

.lesson-card {
    --lesson-color: #2f7df6;
    position: relative;
    z-index: 1;
    gap: 6px;
    margin: 0 0 8px;
    padding: 10px;
    color: #fff;
    background: var(--lesson-color);
    border: 0;
    border-radius: 8px;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.14);
}

.lesson-card.practice { --lesson-color: #10b981; }
.lesson-card.lab { --lesson-color: #8b5cf6; }
.lesson-card.exam { --lesson-color: #ef4444; }
.lesson-card.consultation { --lesson-color: #f59e0b; }
.lesson-card.practice-industrial { --lesson-color: #ea580c; }
.lesson-card.practice-professional { --lesson-color: #d97706; }
.lesson-card.faculty { --lesson-color: #ec4899; }

.lesson-card strong {
    overflow-wrap: anywhere;
    line-height: 1.25;
}

.lesson-meta {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 5px;
    opacity: 0.92;
    font-size: 11px;
    line-height: 1.25;
}

.tiny-icon {
    width: 13px;
    height: 13px;
    flex: 0 0 auto;
}

.lesson-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 2px;
}

.badge.lesson-type,
.badge.week-type {
    min-height: 18px;
    padding: 2px 6px;
    color: #fff;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.18);
    font-size: 10px;
}

.editor-grid-section {
    margin-bottom: 18px;
}

.editor-grid-header {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 12px;
}

.editor-grid-header h3 {
    margin: 0;
    font-size: 18px;
}

.compact-form {
    display: flex;
    align-items: flex-end;
    gap: 10px;
}

.editor-cell {
    padding-bottom: 42px !important;
}

.cell-add-link {
    position: absolute;
    right: 8px;
    bottom: 8px;
    left: 8px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 28px;
    color: var(--muted);
    background: color-mix(in srgb, var(--soft) 78%, transparent);
    border: 1px dashed var(--line);
    border-radius: 7px;
    font-size: 12px;
    font-weight: 700;
}

.cell-add-link:hover {
    color: var(--fg);
    border-color: var(--primary);
}

.cell-add-link .icon {
    width: 14px;
    height: 14px;
}

.editor-lesson-card {
    padding-top: 34px;
}

.lesson-card-actions {
    position: absolute;
    top: 7px;
    right: 7px;
    z-index: 3;
    display: flex;
    gap: 5px;
}

.lesson-card-actions form {
    margin: 0;
}

.lesson-icon-action {
    display: inline-flex;
    width: 24px;
    height: 24px;
    min-height: 24px;
    align-items: center;
    justify-content: center;
    padding: 0;
    color: #fff;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 6px;
}

.lesson-icon-action:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
}

.lesson-icon-action.danger:hover {
    background: rgba(220, 38, 38, 0.72);
    border-color: rgba(220, 38, 38, 0.72);
}

.lesson-icon-action .icon {
    width: 13px;
    height: 13px;
}

.editor-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: 18px;
    align-items: start;
    margin-top: 18px;
}

.editor-form-panel {
    scroll-margin-top: 86px;
}

.form-section-title {
    display: flex;
    grid-column: 1 / -1;
    gap: 12px;
    align-items: flex-start;
    padding-bottom: 4px;
}

.form-section-title > span {
    display: grid;
    width: 38px;
    height: 38px;
    flex: 0 0 auto;
    place-items: center;
    color: var(--primary);
    background: var(--primary-soft);
    border-radius: var(--radius);
}

.form-section-title h3 {
    margin: 0;
    font-size: 18px;
}

.form-actions-row {
    display: flex;
    grid-column: 1 / -1;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.editor-list-panel {
    position: sticky;
    top: 82px;
}

.editor-lesson-list .list-item {
    align-items: center;
}

.lessons-tabs {
    margin-top: 18px;
}

.block {
    display: block;
}

.empty-state {
    display: grid;
    place-items: center;
    min-height: 120px;
    padding: 22px;
    color: var(--muted);
    text-align: center;
}

.alert {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: var(--radius);
    font-weight: 700;
}

.alert.success {
    color: var(--emerald);
    background: var(--emerald-soft);
}

.alert.error {
    color: var(--danger);
    background: var(--danger-soft);
}

.tabs {
    display: grid;
    gap: 16px;
}

.tab-list {
    display: inline-flex;
    width: fit-content;
    max-width: 100%;
    gap: 4px;
    padding: 4px;
    overflow-x: auto;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.tab-button {
    color: var(--muted);
    background: transparent;
    border-color: transparent;
    white-space: nowrap;
}

.tab-button.active {
    color: var(--fg);
    background: var(--card);
    border-color: var(--line);
}

.tab-panel {
    display: none;
}

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

.progress {
    height: 8px;
    overflow: hidden;
    background: var(--soft);
    border-radius: 999px;
}

.progress > span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--emerald));
}

.analytics-kpis {
    margin-bottom: 18px;
}

.analytics-grid {
    margin-top: 18px;
}

.chart-card {
    min-height: 330px;
}

.chart-body {
    padding: 18px;
}

.day-bars {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
    align-items: end;
    min-height: 240px;
    padding: 14px 8px 0;
    background:
        linear-gradient(to top, rgba(148, 163, 184, 0.12) 1px, transparent 1px) 0 0 / 100% 25%,
        transparent;
}

.day-bar {
    display: grid;
    height: 226px;
    grid-template-rows: auto 1fr auto;
    gap: 8px;
    align-items: end;
    justify-items: center;
}

.day-bar .bar-value {
    color: var(--muted);
    font-size: 12px;
    font-weight: 760;
}

.day-bar .bar-fill {
    display: block;
    width: min(82%, 96px);
    height: max(3px, calc(var(--value) * 1%));
    align-self: end;
    background: linear-gradient(180deg, #818cf8, #6366f1);
    border-radius: 7px 7px 2px 2px;
    box-shadow: 0 12px 24px rgba(99, 102, 241, 0.2);
}

.day-bar strong {
    color: var(--muted);
    font-size: 12px;
}

.area-chart-wrap {
    min-height: 282px;
}

.area-chart {
    display: block;
    width: 100%;
    height: 240px;
    overflow: visible;
}

.area-chart line {
    stroke: rgba(148, 163, 184, 0.18);
    stroke-width: 1;
}

.area-chart .area-fill {
    fill: rgba(139, 92, 246, 0.42);
}

.area-chart .area-line {
    fill: none;
    stroke: #8b5cf6;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 4;
}

.area-chart circle {
    fill: #c4b5fd;
    stroke: #07111d;
    stroke-width: 2;
}

.area-chart text {
    fill: var(--fg);
    font-size: 12px;
    font-weight: 760;
}

.area-axis {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 6px;
    padding: 0 28px;
    color: var(--muted);
    font-size: 11px;
    text-align: center;
}

.subject-pie-layout {
    display: grid;
    grid-template-columns: minmax(190px, 240px) minmax(0, 1fr);
    gap: 24px;
    align-items: center;
}

.pie-chart {
    position: relative;
    display: grid;
    width: min(230px, 100%);
    aspect-ratio: 1;
    place-items: center;
    border-radius: 999px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 18px 36px rgba(0, 0, 0, 0.16);
}

.pie-chart::after {
    position: absolute;
    inset: 28%;
    content: "";
    background: var(--card);
    border-radius: inherit;
}

.pie-chart span {
    position: relative;
    z-index: 1;
    color: var(--fg);
    font-size: 26px;
    font-weight: 820;
}

.chart-legend-list,
.load-list {
    display: grid;
    gap: 12px;
}

.legend-row {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    color: var(--muted);
    font-size: 13px;
}

.legend-row i {
    width: 11px;
    height: 11px;
    border-radius: 3px;
}

.legend-row span {
    overflow: hidden;
    color: var(--fg);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.legend-row strong,
.load-header strong {
    color: var(--fg);
    font-size: 12px;
    white-space: nowrap;
}

.load-row {
    display: grid;
    gap: 8px;
}

.load-header {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: var(--muted);
    font-size: 13px;
}

.load-header span {
    min-width: 0;
    overflow: hidden;
    color: var(--fg);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.load-bar {
    height: 9px;
    overflow: hidden;
    background: var(--soft);
    border-radius: 999px;
}

.load-bar span {
    display: block;
    min-width: 3px;
    height: 100%;
    background: linear-gradient(90deg, #0d8df2, #38bdf8);
    border-radius: inherit;
}

.load-bar.teacher span {
    background: linear-gradient(90deg, #0d8df2, #6366f1);
}

.load-bar.room span {
    background: linear-gradient(90deg, #10b981, #34d399);
}

.auth-page {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 24px;
    background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(5, 150, 105, 0.12)),
        var(--bg);
}

.auth-shell {
    width: min(960px, 100%);
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.auth-visual {
    padding: 34px;
    color: #fff;
    background: linear-gradient(135deg, #1d4ed8, #0f766e);
}

.auth-visual h1 {
    margin: 18px 0 10px;
    font-size: 32px;
    line-height: 1.15;
}

.auth-visual p {
    color: #fff;
}

.auth-form {
    padding: 34px;
}

.auth-form h2 {
    margin: 0 0 8px;
    font-size: 24px;
}

.mobile-backdrop {
    display: none;
}

.role-demo-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.36fr);
    gap: 22px;
    align-items: stretch;
    margin-bottom: 20px;
    padding: 24px;
    color: #fff;
    background: linear-gradient(110deg, #0b63ce 0%, #0f766e 100%);
    border-radius: 12px;
}

.role-demo-hero h3 {
    margin: 14px 0 8px;
    font-size: 26px;
}

.role-demo-hero p {
    max-width: 780px;
    margin: 0;
    color: #fff;
    font-size: 16px;
}

.role-demo-live {
    display: grid;
    align-content: center;
    gap: 4px;
    padding: 18px;
    background: rgba(2, 8, 23, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 10px;
}

.role-demo-live span,
.role-demo-live small {
    color: rgba(255, 255, 255, 0.9);
}

.role-demo-live strong {
    font-size: 24px;
    line-height: 1.15;
}

.role-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.role-card,
.role-demo-panel {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.role-card {
    display: grid;
    gap: 14px;
    align-content: start;
    padding: 18px;
}

.role-card-head,
.section-heading-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.role-card h3,
.role-demo-panel h3,
.demo-lesson h4,
.demo-substitution-list h4 {
    margin: 0;
}

.role-card ul {
    display: grid;
    gap: 8px;
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
}

.role-card .button {
    width: fit-content;
}

.demo-two-column {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
    gap: 18px;
    margin-bottom: 18px;
}

.role-demo-panel {
    padding: 18px;
}

.demo-lesson {
    display: grid;
    gap: 8px;
    margin-top: 14px;
    padding: 16px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.demo-lesson p,
.demo-lesson small,
.account-row p,
.demo-step p {
    margin: 0;
    color: var(--muted);
}

.demo-substitution-list {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.empty-state.compact {
    min-height: auto;
    padding: 16px;
}

.account-stack {
    display: grid;
    gap: 12px;
    margin-top: 14px;
}

.account-row {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: start;
    padding: 12px;
    background: var(--soft);
    border-radius: var(--radius);
}

.account-row code {
    display: inline-flex;
    margin-left: 8px;
    padding: 2px 6px;
    color: var(--fg);
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 6px;
    font-size: 12px;
}

.demo-step-list {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.demo-step {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    padding: 14px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.demo-step-number {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: #fff;
    background: var(--primary-action, var(--primary));
    border-radius: 999px;
    font-weight: 850;
}

.role-matrix {
    min-width: 820px;
}

.role-matrix th:not(:first-child),
.role-matrix td:not(:first-child) {
    text-align: center;
}

@media (max-width: 1180px) {
    .grid.cols-4,
    .cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .grid.cols-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .role-card-grid,
    .demo-two-column {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 860px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.2s ease;
    }

    body.sidebar-open .sidebar {
        transform: translateX(0);
    }

    .mobile-backdrop {
        position: fixed;
        inset: 0;
        z-index: 40;
        background: rgba(15, 23, 42, 0.52);
    }

    body.sidebar-open .mobile-backdrop {
        display: block;
    }

    .app-shell {
        padding-left: 0;
    }

    .mobile-menu-button {
        display: inline-flex;
    }

    .topbar {
        padding: 0 14px;
    }

    .topbar-actions .time-chip,
    .profile-pill span:not(.avatar) {
        display: none;
    }

    .page-content {
        padding: 16px;
    }

    .page-header,
    .hero-row {
        align-items: stretch;
        flex-direction: column;
    }

    .grid.cols-2,
    .grid.cols-3,
    .grid.cols-4,
    .cards {
        grid-template-columns: 1fr;
    }

    .auth-shell {
        grid-template-columns: 1fr;
    }

    .auth-visual {
        padding: 24px;
    }

    .role-demo-hero {
        grid-template-columns: 1fr;
        padding: 18px;
    }

    .demo-step {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .demo-step .button {
        grid-column: 1 / -1;
        width: 100%;
    }
}

/* Node.js parity layer */
:root {
    --bg: #020817;
    --fg: #f8fafc;
    --muted: #cbd5e1;
    --placeholder: #d7e0ec;
    --card: #07111d;
    --line: #1f2937;
    --soft: #111a27;
    --primary: #0d8df2;
    --primary-strong: #0284e6;
    --primary-action: #0b63ce;
    --primary-action-strong: #084fa8;
    --primary-soft: rgba(13, 141, 242, 0.16);
    --emerald: #10b981;
    --emerald-soft: rgba(16, 185, 129, 0.14);
    --amber: #f59e0b;
    --amber-soft: rgba(245, 158, 11, 0.16);
    --violet: #8b5cf6;
    --violet-soft: rgba(139, 92, 246, 0.16);
    --danger: #ef4444;
    --danger-soft: rgba(239, 68, 68, 0.16);
    --sidebar: #020916;
    --sidebar-line: #1f2937;
    --sidebar-muted: #cbd5e1;
    --shadow: none;
}

body.light {
    --bg: #f7f8fb;
    --fg: #111827;
    --muted: #667085;
    --placeholder: #667085;
    --card: #ffffff;
    --line: #e5e7eb;
    --soft: #f1f5f9;
    --primary: #2563eb;
    --primary-strong: #1d4ed8;
    --primary-action: #2563eb;
    --primary-action-strong: #1d4ed8;
    --primary-soft: #dbeafe;
    --sidebar: #111827;
    --sidebar-line: #263244;
}

body {
    background:
        radial-gradient(circle at 50% -15%, rgba(13, 141, 242, 0.08), transparent 34%),
        linear-gradient(135deg, #061322 0%, #020817 42%, #010409 100%);
    letter-spacing: 0;
}

body.light {
    background: #f7f8fb;
}

.sidebar {
    width: 290px;
    background: rgba(2, 9, 22, 0.98);
}

.app-shell {
    padding-left: 290px;
}

.brand {
    height: 86px;
    padding: 0 28px;
    font-size: 20px;
}

.brand-mark {
    width: 24px;
    height: 24px;
    background: transparent;
    border: 0;
    color: var(--primary);
}

.sidebar-nav {
    padding: 18px 14px;
}

.nav-link {
    min-height: 46px;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 15px;
    color: rgba(248, 250, 252, 0.9);
}

.nav-link.active {
    background: #141c28;
    box-shadow: none;
}

.sidebar-user {
    min-height: 106px;
    padding: 20px 28px;
}

.sidebar-user .icon-button {
    width: auto;
    gap: 8px;
}

.topbar-node {
    height: 86px;
    padding: 0 28px;
    background: rgba(2, 8, 23, 0.92);
}

.topbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 260px;
    font-size: 20px;
    font-weight: 780;
}

.topbar-brand .icon {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

.topbar-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
    flex: 1;
}

.topbar-nav a {
    color: rgba(248, 250, 252, 0.86);
    font-weight: 500;
}

.topbar-nav a:hover {
    color: #fff;
}

.topbar-actions {
    gap: 16px;
}

.topbar-actions .icon-button,
.profile-pill {
    background: #0f1724;
    border-color: #263244;
    color: #f8fafc;
}

.page-content {
    width: 100%;
    max-width: none;
    padding: 28px;
}

.card,
.table-wrap {
    background: rgba(7, 17, 29, 0.96);
    border-color: #263244;
    box-shadow: none;
}

.card:hover {
    border-color: #334155;
}

.hero-node {
    padding: 30px 28px;
    background: linear-gradient(110deg, #0d8df2 0%, #0877ca 100%);
    border-radius: 12px;
}

.hero-node h2 {
    font-size: 28px;
}

.hero-node p {
    color: #fff;
    font-size: 16px;
}

.hero-actions {
    display: flex;
    gap: 8px;
    margin-top: 24px;
}

.hero-badge {
    color: #fff;
    background: rgba(255, 255, 255, 0.18);
}

.hero-button {
    min-height: 32px;
    color: #fff;
    background: #050b14;
    border-color: #050b14;
}

.hero-time {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 18px;
}

.section-heading {
    margin: 0 0 18px;
    font-size: 20px;
}

.tabs-node .tab-list {
    width: min(508px, 100%);
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #151f2b;
    border-color: #263244;
}

.tab-button {
    color: rgba(248, 250, 252, 0.88);
}

.tab-button.active {
    color: #fff;
    background: #1a2431;
}

.quick-card-node {
    min-height: 216px;
    padding: 50px 22px 22px;
}

.quick-card-node .quick-icon {
    width: 46px;
    height: 46px;
}

.quick-card-node h3 {
    margin-top: 18px;
    font-size: 17px;
}

.stat-card-node {
    min-height: 180px;
    padding: 44px 20px 20px;
}

.stat-card-node .stat-value {
    font-size: 30px;
}

.trend {
    color: #10b981;
    font-size: 12px;
}

.dashboard-grid-node {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(340px, 0.78fr);
    gap: 26px;
    margin-top: 30px;
}

.node-panel {
    border-radius: 10px;
}

.announcement-list {
    padding: 0;
}

.announcement-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 14px;
    padding: 24px 20px;
    border-bottom: 1px solid var(--line);
}

.announcement-item:last-child {
    border-bottom: 0;
}

.announcement-item p {
    margin: 4px 0;
}

.announcement-item small {
    color: var(--muted);
}

.announce-icon {
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    border-radius: 999px;
}

.announce-icon.warning {
    color: #f59e0b;
    background: #fef3c7;
}

.announce-icon.primary {
    color: #2563eb;
    background: #dbeafe;
}

input,
select,
textarea {
    background: #101a25;
    border-color: #263244;
    color: #f8fafc;
}

th {
    background: #111a27;
}

.auth-node {
    display: block;
    min-height: 100vh;
    padding: 0;
    background:
        radial-gradient(circle at 50% -18%, rgba(13, 141, 242, 0.08), transparent 33%),
        linear-gradient(145deg, #061321 0%, #020817 45%, #010409 100%);
}

.auth-node-wrap {
    width: min(508px, calc(100% - 32px));
    margin: 0 auto;
    padding: 24px 0 44px;
}

.auth-node-heading {
    padding: 0 0 36px;
    text-align: center;
}

.auth-logo {
    display: inline-grid;
    width: 72px;
    height: 72px;
    place-items: center;
    margin-bottom: 20px;
    color: #fff;
    background: var(--primary-action);
    border-radius: 18px;
}

.auth-logo .icon {
    width: 34px;
    height: 34px;
}

.auth-node-heading h1 {
    margin: 0;
    font-size: 29px;
    line-height: 1.2;
}

.auth-node-heading p {
    margin: 8px 0 0;
    color: #d7dee8;
    font-size: 16px;
}

.auth-card-node {
    overflow: hidden;
    background: rgba(7, 17, 29, 0.96);
    border: 1px solid #1f2937;
    border-radius: 12px;
}

.auth-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 4px;
    background: #151f2b;
}

.auth-tabs a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 36px;
    color: #d1d8e3;
    border-radius: 7px;
}

.auth-tabs a.active {
    color: #fff;
    background: #1a2431;
    box-shadow: inset 0 0 0 1px #263244;
}

.auth-card-node .alert {
    margin: 18px 28px 0;
}

.auth-card-body {
    padding: 28px;
}

.auth-card-body h2 {
    margin: 0 0 14px;
    font-size: 24px;
}

.auth-form-node {
    display: grid;
    gap: 16px;
    margin-top: 22px;
}

.input-with-icon {
    position: relative;
    display: block;
}

.input-with-icon .icon {
    position: absolute;
    left: 13px;
    top: 50%;
    transform: translateY(-50%);
    color: #c8d2df;
}

.input-with-icon input {
    padding-left: 46px;
}

.auth-form-node button,
.auth-form-node .button {
    width: 100%;
    min-height: 41px;
    margin-top: 2px;
    background: var(--primary-action);
    border-color: var(--primary-action);
}

.auth-help-row {
    margin: 18px 0 0;
    text-align: center;
}

.auth-inline-link {
    margin: -6px 0 0;
    text-align: right;
    font-size: 13px;
    font-weight: 750;
}

.auth-inline-link a {
    color: var(--primary-strong);
}

.auth-help-row a {
    color: #9ec5ff;
}

.test-divider {
    position: relative;
    display: flex;
    justify-content: center;
    margin: 30px 0 18px;
    color: #cbd5e1;
    text-transform: uppercase;
    font-size: 12px;
}

.test-divider::before {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    content: "";
    background: #263244;
}

.test-divider span {
    position: relative;
    padding: 0 12px;
    background: #07111d;
}

.test-accounts {
    display: grid;
    gap: 10px;
}

.test-accounts button {
    display: flex;
    justify-content: space-between;
    min-height: 68px;
    padding: 13px;
    color: #f8fafc;
    background: #07111d;
    border-color: #263244;
    text-align: left;
}

.test-accounts button:hover {
    background: #111a27;
}

.test-accounts small,
.test-accounts code {
    color: #d5dce7;
}

.corner-brand {
    position: fixed;
    left: 22px;
    bottom: 18px;
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    color: #fff;
    background: #050505;
    border: 2px solid #2a2a2a;
    border-radius: 999px;
    font-weight: 800;
}

@media (max-width: 1180px) {
    .dashboard-grid-node {
        grid-template-columns: 1fr;
    }

    .topbar-nav {
        gap: 14px;
    }

    .toolbar-form {
        justify-content: flex-start;
    }

    .schedule-week-panel {
        align-items: flex-start;
        flex-direction: column;
    }

    .week-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 860px) {
    .app-shell {
        padding-left: 0;
    }

    .topbar-brand {
        min-width: 0;
    }

    .topbar-nav {
        display: none;
    }

    .quick-card-node,
    .stat-card-node {
        min-height: auto;
        padding-top: 22px;
    }

    .schedule-toolbar,
    .schedule-week-panel {
        padding: 14px;
    }

    .segmented-control,
    .toolbar-form,
    .toolbar-form label,
    .compact-form,
    .compact-form label {
        width: 100%;
        max-width: none;
    }

    .toolbar-form {
        flex-basis: 100%;
    }

    .editor-grid-header {
        align-items: stretch;
        flex-direction: column;
    }

    .schedule-table-node {
        min-width: 980px;
    }

    .day-bars {
        gap: 10px;
    }

    .subject-pie-layout {
        grid-template-columns: 1fr;
        justify-items: center;
    }

    .chart-legend-list {
        width: 100%;
    }
}

/* MVP i18n and device adaptation */
.language-switcher {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 38px;
    padding: 0 11px;
    color: #f8fafc;
    background: #0f1724;
    border: 1px solid #263244;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 800;
    outline: none;
}

.language-switcher .icon {
    width: 17px;
    height: 17px;
}

.language-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 80;
    display: none;
    min-width: 178px;
    padding: 6px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
}

.language-switcher:hover .language-menu,
.language-switcher:focus-within .language-menu {
    display: grid;
    gap: 4px;
}

.language-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 34px;
    padding: 7px 9px;
    color: var(--fg);
    border-radius: 6px;
    font-weight: 700;
}

.language-menu a:hover,
.language-menu a.active {
    background: var(--soft);
}

.language-menu a span {
    display: inline-grid;
    width: 34px;
    height: 22px;
    place-items: center;
    color: var(--primary);
    background: var(--primary-soft);
    border-radius: 999px;
    font-size: 11px;
    font-weight: 900;
}

.auth-language {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 5;
    display: inline-flex;
    gap: 4px;
    padding: 4px;
    background: rgba(7, 17, 29, 0.92);
    border: 1px solid #263244;
    border-radius: var(--radius);
}

.auth-language a {
    display: inline-grid;
    min-width: 40px;
    min-height: 32px;
    place-items: center;
    color: #d1d8e3;
    border-radius: 6px;
    font-weight: 800;
}

.auth-language a.active,
.auth-language a:hover {
    color: #fff;
    background: #1a2431;
}

.table-wrap {
    -webkit-overflow-scrolling: touch;
}

.schedule-table-node th:first-child,
.schedule-table-node td:first-child {
    position: sticky;
    left: 0;
    z-index: 3;
    background: var(--card);
    box-shadow: 1px 0 0 var(--line);
}

.schedule-table-node thead th:first-child {
    z-index: 4;
    background: var(--soft);
}

@media (max-width: 1040px) {
    .topbar-brand {
        min-width: auto;
    }

    .topbar-brand span {
        max-width: 190px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .topbar-actions {
        gap: 8px;
    }
}

@media (max-width: 640px) {
    body {
        font-size: 13px;
    }

    .sidebar {
        width: min(88vw, 320px);
    }

    .topbar-node {
        height: 64px;
        padding: 0 10px;
        gap: 8px;
    }

    .topbar-brand {
        flex: 1 1 auto;
        min-width: 0;
        font-size: 0;
    }

    .topbar-brand .icon {
        width: 24px;
        height: 24px;
    }

    .topbar-brand span {
        display: none;
    }

    .topbar-actions {
        gap: 6px;
    }

    .topbar-actions .profile-pill {
        display: none;
    }

    .icon-button,
    .language-switcher {
        min-height: 36px;
    }

    .language-switcher {
        width: 44px;
        padding: 0;
    }

    .language-switcher > span {
        display: none;
    }

    .language-menu {
        right: -44px;
    }

    .page-content {
        padding: 14px 12px 24px;
    }

    .page-header {
        margin-bottom: 14px;
    }

    .page-header h2,
    .page-title {
        font-size: 21px;
    }

    .page-header .button,
    .page-header button {
        width: 100%;
    }

    .page-actions {
        width: 100%;
    }

    .hero-node {
        padding: 22px 18px;
    }

    .hero-node h2 {
        font-size: 23px;
    }

    .hero-actions,
    .week-actions,
    .toolbar-row {
        width: 100%;
    }

    .hero-actions .button,
    .week-actions .button,
    .toolbar-form button {
        width: 100%;
    }

    .grid,
    .grid.cols-2,
    .grid.cols-3,
    .grid.cols-4,
    .cards {
        gap: 12px;
    }

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

    .editor-workspace {
        grid-template-columns: 1fr;
    }

    .editor-list-panel {
        position: static;
    }

    .grid-form button,
    .inline-form button,
    form.card > button {
        width: 100%;
    }

    .card-header,
    .list-item,
    .schedule-week-panel {
        flex-direction: column;
        align-items: stretch;
    }

    .tab-list,
    .tabs-node .tab-list {
        width: 100%;
    }

    .tab-button {
        min-width: max-content;
    }

    table {
        min-width: 680px;
    }

    th,
    td {
        padding: 10px;
    }

    .schedule-table-node {
        min-width: 860px;
    }

    .schedule-table-node th:first-child,
    .schedule-table-node td:first-child {
        width: 104px;
    }

    .time-cell {
        padding: 10px 8px !important;
    }

    .schedule-cell {
        height: 108px;
        padding: 6px !important;
    }

    .lesson-card {
        padding: 8px;
    }

    .editor-lesson-card {
        padding-top: 34px;
    }

    .auth-page {
        padding: 14px;
    }

    .auth-node-wrap {
        width: min(100%, 508px);
        padding-top: 68px;
    }

    .auth-card-body {
        padding: 22px 18px;
    }

    .auth-node-heading h1 {
        font-size: 25px;
    }

    .auth-node-heading p {
        font-size: 14px;
    }

    .auth-language {
        top: 12px;
        right: 12px;
    }
}

/* Production light theme: final override for launch */
:root,
body,
body.light,
body.dark {
    --bg: #f5f8fc;
    --fg: #172033;
    --muted: #526174;
    --placeholder: #66758a;
    --card: #ffffff;
    --line: #d9e2ef;
    --soft: #eef4fb;
    --primary: #1f6feb;
    --primary-strong: #174ea6;
    --primary-action: #1f6feb;
    --primary-action-strong: #174ea6;
    --primary-soft: #dbeafe;
    --emerald: #047857;
    --emerald-soft: #d1fae5;
    --amber: #b45309;
    --amber-soft: #fef3c7;
    --violet: #6d28d9;
    --violet-soft: #ede9fe;
    --danger: #c81e1e;
    --danger-soft: #fee2e2;
    --sidebar: #ffffff;
    --sidebar-line: #d9e2ef;
    --sidebar-muted: #66758a;
    --shadow: 0 16px 42px rgba(23, 32, 51, 0.08);
}

html,
body,
body.dark {
    color-scheme: light;
}

body,
body.light,
body.dark {
    background:
        linear-gradient(180deg, #ffffff 0%, #f5f8fc 46%, #eef4fb 100%);
    color: var(--fg);
}

.sidebar {
    background: rgba(255, 255, 255, 0.98);
    color: var(--fg);
    border-right-color: var(--line);
    box-shadow: 8px 0 28px rgba(23, 32, 51, 0.06);
}

.brand,
.sidebar-user {
    border-color: var(--line);
}

.brand-mark {
    color: var(--primary);
    background: var(--primary-soft);
    border: 1px solid color-mix(in srgb, var(--primary) 20%, var(--line));
}

.nav-link {
    color: #334155;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-strong);
    background: #eaf2ff;
}

.nav-link.active {
    box-shadow: inset 3px 0 0 var(--primary);
}

.user-copy span,
.topbar-nav a,
.auth-tabs a,
.test-accounts small,
.test-accounts code {
    color: var(--muted);
}

.topbar,
.topbar-node {
    background: rgba(255, 255, 255, 0.92);
    border-bottom-color: var(--line);
    box-shadow: 0 1px 2px rgba(23, 32, 51, 0.05);
}

.topbar-brand,
.topbar-nav a:hover,
.topbar-actions .icon-button,
.profile-pill,
.time-chip,
.language-switcher {
    color: var(--fg);
}

.topbar-actions .icon-button,
.profile-pill,
.time-chip,
.language-switcher,
.auth-language {
    background: var(--card);
    border-color: var(--line);
}

.card,
.table-wrap,
.role-card,
.role-demo-panel,
.auth-card-node {
    background: var(--card);
    border-color: var(--line);
    box-shadow: 0 1px 2px rgba(23, 32, 51, 0.04), 0 14px 34px rgba(23, 32, 51, 0.06);
}

.card:hover {
    border-color: color-mix(in srgb, var(--primary) 32%, var(--line));
}

.list-item,
.demo-lesson,
.account-row,
.demo-step,
.segmented-control,
.tabs-node .tab-list,
.auth-tabs {
    background: var(--soft);
    border-color: var(--line);
}

.segmented-control .active,
.tab-button.active,
.auth-tabs a.active {
    color: var(--fg);
    background: var(--card);
    box-shadow: 0 1px 2px rgba(23, 32, 51, 0.08);
}

input,
select,
textarea {
    color: var(--fg);
    background: var(--card);
    border-color: var(--line);
}

input::placeholder,
textarea::placeholder {
    color: var(--placeholder);
}

th,
.schedule-table-node thead th,
.schedule-table-node thead th:first-child {
    color: var(--fg);
    background: var(--soft);
}

td,
.muted,
.page-header p,
.section-subtitle,
.time-cell span,
.schedule-week-panel p,
.demo-lesson p,
.demo-lesson small,
.account-row p,
.demo-step p {
    color: var(--muted);
}

.schedule-cell {
    background: #f8fbff;
}

.empty-mark {
    color: #7b8aa0;
}

.lesson-card {
    box-shadow: 0 10px 22px rgba(23, 32, 51, 0.14);
}

.hero-node,
.hero {
    color: #ffffff;
    background:
        linear-gradient(120deg, #1f6feb 0%, #0f9f91 100%),
        radial-gradient(circle at 92% 8%, rgba(255, 255, 255, 0.25), transparent 28%);
}

.hero-button {
    color: #ffffff;
    background: #174ea6;
    border-color: #174ea6;
}

.auth-node {
    background:
        radial-gradient(circle at 50% -18%, rgba(31, 111, 235, 0.14), transparent 33%),
        linear-gradient(180deg, #ffffff 0%, #f5f8fc 100%);
}

.auth-node-heading h1,
.auth-node-heading p {
    color: var(--fg);
}

.auth-logo {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary), #0f9f91);
}

.test-divider {
    color: var(--muted);
}

.test-divider::before {
    background: var(--line);
}

.test-divider span {
    background: var(--card);
}

.test-accounts button {
    color: var(--fg);
    background: var(--card);
    border-color: var(--line);
}

.test-accounts button:hover,
.language-menu a:hover,
.language-menu a.active,
.auth-language a.active,
.auth-language a:hover {
    color: var(--primary-strong);
    background: #eaf2ff;
}

.language-menu {
    background: var(--card);
    border-color: var(--line);
    box-shadow: var(--shadow);
}

.auth-language a {
    color: var(--muted);
}

.corner-brand {
    color: #ffffff;
    background: var(--primary);
    border-color: #cfe0ff;
}

/* Single readable light theme: hard stop for old dark overrides */
body,
.page-content,
.page-header,
.card,
.card-title,
.table-wrap,
table,
td,
label,
.list-item,
.node-panel,
.role-card,
.role-demo-panel,
.auth-card-body,
.auth-form-node label,
.language-menu a,
.topbar-brand,
.brand,
.sidebar-user,
.user-copy strong,
.time-cell strong,
.schedule-week-panel h3,
.editor-grid-header h3 {
    color: var(--fg);
}

.page-header p,
.section-subtitle,
.muted,
.stat-label,
.stat-top,
.topbar-nav a,
.user-copy span,
.schedule-week-panel p,
.schedule-table-node thead th small,
.time-cell span,
.selection-line,
.schedule-legend,
.empty-mark,
.auth-card-body .muted,
.auth-help-row a,
.auth-tabs a,
.language-switcher,
.auth-language a {
    color: var(--muted);
}

.auth-help-row a,
.topbar-nav a:hover,
.language-menu a:hover,
.language-menu a.active,
.auth-language a.active,
.auth-language a:hover {
    color: var(--primary-strong);
}

.card p:not(.muted),
.card li,
.list-item span,
.table-wrap strong,
.role-card h3,
.role-card li,
.auth-card-body h2 {
    color: var(--fg);
}

.topbar-actions .icon-button,
.profile-pill,
.language-switcher,
.auth-language,
.input-with-icon input,
input,
select,
textarea {
    background: #ffffff;
    border-color: var(--line);
}

.button.outline:hover,
button.outline:hover,
.button.ghost:hover,
button.ghost:hover {
    color: #ffffff;
    background: var(--primary-action);
    border-color: var(--primary-action);
}

.button,
button,
input[type="submit"],
.hero,
.hero-node,
.hero p,
.hero-node p,
.hero h2,
.hero-node h2,
.hero-time,
.hero-badge,
.hero-button,
.lesson-card,
.lesson-card strong,
.lesson-meta,
.badge.lesson-type,
.badge.week-type,
.quick-icon {
    color: #ffffff;
}

.lesson-box,
.lesson-box strong,
.lesson-box span {
    color: var(--fg);
}

.button.outline,
button.outline,
.button.ghost,
button.ghost {
    color: var(--fg);
    background: transparent;
    border-color: var(--line);
}

.button.outline:hover,
button.outline:hover,
.button.ghost:hover,
button.ghost:hover {
    color: #ffffff;
    background: var(--primary-action);
    border-color: var(--primary-action);
}

.badge.primary {
    color: var(--primary-strong);
    background: var(--primary-soft);
}

.badge.success {
    color: var(--emerald);
    background: var(--emerald-soft);
}

.badge.warning {
    color: var(--amber);
    background: var(--amber-soft);
}

.badge.danger {
    color: var(--danger);
    background: var(--danger-soft);
}

.badge.neutral {
    color: var(--muted);
    background: var(--soft);
}

/* Light shadcn-style interface override */
:root,
body,
body.light,
body.dark {
    --bg: #f8fafc;
    --fg: #0f172a;
    --muted: #64748b;
    --placeholder: #94a3b8;
    --card: #ffffff;
    --line: #e2e8f0;
    --soft: #f1f5f9;
    --primary: #2563eb;
    --primary-strong: #1d4ed8;
    --primary-action: #2563eb;
    --primary-action-strong: #1d4ed8;
    --primary-soft: #dbeafe;
    --emerald: #047857;
    --emerald-soft: #d1fae5;
    --amber: #b45309;
    --amber-soft: #fef3c7;
    --violet: #6d28d9;
    --violet-soft: #ede9fe;
    --danger: #dc2626;
    --danger-soft: #fee2e2;
    --sidebar: #ffffff;
    --sidebar-line: #e2e8f0;
    --sidebar-muted: #64748b;
    --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 12px 28px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 18px 44px rgba(15, 23, 42, 0.09);
    --radius: 10px;
}

html,
body,
body.light,
body.dark {
    color-scheme: light;
}

body,
body.light,
body.dark {
    color: var(--fg);
    background: #f8fafc;
}

.sidebar {
    width: 264px;
    color: var(--fg);
    background: rgba(255, 255, 255, 0.98);
    border-right: 1px solid var(--sidebar-line);
    box-shadow: 8px 0 24px rgba(15, 23, 42, 0.04);
}

.app-shell {
    padding-left: 264px;
}

.brand {
    height: 64px;
    padding: 0 24px;
    color: var(--fg);
    border-bottom-color: var(--line);
    font-size: 18px;
    font-weight: 750;
}

.brand-mark {
    width: 34px;
    height: 34px;
    color: var(--primary);
    background: var(--primary-soft);
    border: 1px solid #bfdbfe;
    border-radius: 8px;
}

.sidebar-nav {
    padding: 14px 12px;
}

.nav-link {
    min-height: 42px;
    margin-bottom: 4px;
    padding: 10px 12px;
    color: #334155;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 650;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-strong);
    background: #eff6ff;
    box-shadow: none;
    transform: none;
}

.nav-link.active {
    border: 1px solid #bfdbfe;
}

.sidebar-user {
    min-height: 82px;
    padding: 14px 16px;
    border-top-color: var(--line);
}

.user-copy strong,
.sidebar-user,
.sidebar-user .icon-button {
    color: var(--fg);
}

.user-copy span {
    color: var(--muted);
}

.avatar {
    color: #ffffff;
    background: linear-gradient(135deg, #2563eb, #0f9f91);
}

.topbar,
.topbar-node {
    height: 64px;
    padding: 0 24px;
    color: var(--fg);
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    backdrop-filter: blur(12px);
}

.topbar-brand {
    min-width: 220px;
    color: var(--fg);
    font-size: 18px;
    font-weight: 750;
}

.topbar-brand .icon {
    width: 24px;
    height: 24px;
    color: var(--primary);
}

.topbar-nav {
    gap: 20px;
}

.topbar-nav a {
    color: var(--muted);
    font-size: 14px;
    font-weight: 650;
}

.topbar-nav a:hover {
    color: var(--primary);
}

.topbar-actions {
    gap: 10px;
}

.topbar-actions .icon-button,
.profile-pill,
.language-switcher,
.auth-language {
    color: var(--fg);
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.topbar-actions .icon-button:hover,
.profile-pill:hover,
.language-switcher:hover {
    color: var(--primary);
    background: #eff6ff;
    border-color: #bfdbfe;
}

.page-content {
    max-width: none;
    padding: 24px;
}

.page-header {
    margin-bottom: 20px;
}

.page-header h2,
.page-title {
    color: var(--fg);
    font-size: 26px;
    line-height: 1.2;
}

.page-header p,
.section-subtitle,
.muted {
    color: var(--muted);
}

.card,
.table-wrap,
.node-panel,
.role-card,
.role-demo-panel,
.auth-card-node {
    color: var(--fg);
    background: var(--card);
    border: 1px solid rgba(226, 232, 240, 0.95);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.card:hover {
    border-color: #bfdbfe;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 16px 34px rgba(15, 23, 42, 0.08);
}

.card-title,
.card p:not(.muted),
.card li,
.table-wrap strong,
label,
td,
table {
    color: var(--fg);
}

.card-header {
    border-bottom-color: var(--line);
}

.hero,
.hero-node {
    color: var(--fg);
    background: var(--card);
    border: 1px solid rgba(226, 232, 240, 0.95);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.hero h2,
.hero-node h2,
.hero p,
.hero-node p,
.hero-time {
    color: var(--fg);
}

.hero-node p,
.hero p {
    color: var(--muted);
}

.hero-badge {
    color: var(--primary-strong);
    background: var(--primary-soft);
    border: 1px solid #bfdbfe;
}

.hero-button {
    color: #ffffff;
    background: var(--primary);
    border-color: var(--primary);
}

.grid,
.cards {
    gap: 16px;
}

.quick-card,
.quick-card-node,
.stat-card,
.stat-card-node {
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.quick-card:hover,
.quick-card-node:hover {
    transform: translateY(-1px);
}

.quick-icon {
    color: var(--primary);
    background: #eff6ff;
    border: 1px solid #bfdbfe;
}

.quick-icon.emerald {
    color: var(--emerald);
    background: #ecfdf5;
    border-color: #bbf7d0;
}

.quick-icon.amber {
    color: var(--amber);
    background: #fffbeb;
    border-color: #fde68a;
}

.quick-icon.violet {
    color: var(--violet);
    background: #f5f3ff;
    border-color: #ddd6fe;
}

.stat-top,
.stat-label,
.selection-line,
.schedule-legend {
    color: var(--muted);
}

.stat-value {
    color: var(--fg);
}

.badge {
    border: 1px solid transparent;
}

.badge.primary {
    color: var(--primary-strong);
    background: var(--primary-soft);
    border-color: #bfdbfe;
}

.badge.success {
    color: var(--emerald);
    background: var(--emerald-soft);
    border-color: #a7f3d0;
}

.badge.warning {
    color: var(--amber);
    background: var(--amber-soft);
    border-color: #fde68a;
}

.badge.danger {
    color: var(--danger);
    background: var(--danger-soft);
    border-color: #fecaca;
}

.badge.neutral {
    color: #475569;
    background: var(--soft);
    border-color: var(--line);
}

.button,
input[type="submit"],
button {
    color: #ffffff;
    background: var(--primary);
    border-color: var(--primary);
    border-radius: 8px;
    font-weight: 650;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.button:hover,
input[type="submit"]:hover,
button:hover {
    color: #ffffff;
    background: var(--primary-strong);
    border-color: var(--primary-strong);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.20);
}

.button.outline,
button.outline,
.button.ghost,
button.ghost {
    color: var(--fg);
    background: var(--card);
    border-color: var(--line);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.button.outline:hover,
button.outline:hover,
.button.ghost:hover,
button.ghost:hover {
    color: var(--primary);
    background: #eff6ff;
    border-color: #bfdbfe;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.button.danger,
button.danger {
    color: #ffffff;
    background: var(--danger);
    border-color: var(--danger);
}

input,
select,
textarea,
.input-with-icon input {
    color: var(--fg);
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 8px;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

input::placeholder,
textarea::placeholder {
    color: var(--placeholder);
}

.segmented-control,
.tab-list,
.tabs-node .tab-list,
.auth-tabs,
.list-item,
.demo-lesson,
.account-row,
.demo-step {
    background: var(--soft);
    border-color: var(--line);
}

.segmented-control a,
.segmented-control span,
.tab-button,
button.tab-button,
.auth-tabs a {
    color: var(--muted);
    background: transparent;
    border-color: transparent;
    box-shadow: none;
}

.segmented-control a:hover,
.segmented-control a.active,
.segmented-control span.active,
.tab-button:hover,
button.tab-button:hover,
.tab-button.active,
button.tab-button.active,
.auth-tabs a.active {
    color: var(--fg);
    background: var(--card);
    border-color: var(--line);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
    transform: none;
}

.table-wrap {
    overflow: auto;
}

th,
.schedule-table-node thead th,
.schedule-table-node thead th:first-child {
    color: #334155;
    background: var(--soft);
    border-color: var(--line);
}

td {
    border-color: var(--line);
}

.schedule-toolbar,
.schedule-week-panel {
    padding: 16px;
}

.schedule-board {
    background: var(--card);
    border-radius: 10px;
}

.schedule-table-node th,
.schedule-table-node td {
    border-color: var(--line);
}

.schedule-table-node th:first-child,
.schedule-table-node td:first-child {
    background: var(--card);
}

.schedule-table-node thead th:first-child {
    background: var(--soft);
}

.schedule-cell {
    background: #fbfdff;
}

.time-cell strong,
.schedule-week-panel h3,
.editor-grid-header h3 {
    color: var(--fg);
}

.time-cell span,
.schedule-week-panel p,
.schedule-table-node thead th small,
.empty-mark {
    color: var(--muted);
}

.lesson-card {
    color: var(--fg);
    background: var(--card);
    border: 1px solid var(--line);
    border-left: 4px solid var(--lesson-color);
    box-shadow: 0 6px 16px rgba(15, 23, 42, 0.08);
}

.lesson-card strong {
    color: var(--fg);
}

.lesson-meta {
    color: var(--muted);
    opacity: 1;
}

.badge.lesson-type,
.badge.week-type {
    color: var(--lesson-color);
    background: color-mix(in srgb, var(--lesson-color) 12%, #ffffff);
    border-color: color-mix(in srgb, var(--lesson-color) 28%, #ffffff);
}

.lesson-icon-action {
    color: var(--muted);
    background: var(--soft);
    border-color: var(--line);
    box-shadow: none;
}

.lesson-icon-action:hover {
    color: var(--primary);
    background: #eff6ff;
    border-color: #bfdbfe;
    transform: none;
    box-shadow: none;
}

.lesson-icon-action.danger:hover {
    color: var(--danger);
    background: var(--danger-soft);
    border-color: #fecaca;
}

.lesson-box,
.lesson-box strong,
.lesson-box span {
    color: var(--fg);
}

.language-menu {
    background: var(--card);
    border-color: var(--line);
    box-shadow: var(--shadow-lg);
}

.language-menu a,
.auth-language a {
    color: var(--fg);
}

.language-menu a:hover,
.language-menu a.active,
.auth-language a.active,
.auth-language a:hover {
    color: var(--primary);
    background: #eff6ff;
}

.auth-node {
    background: #f8fafc;
}

.auth-node-heading h1 {
    color: var(--fg);
}

.auth-node-heading p,
.auth-card-body .muted,
.auth-help-row a {
    color: var(--muted);
}

.auth-logo {
    color: #ffffff;
    background: linear-gradient(135deg, #2563eb, #0f9f91);
}

.test-divider {
    color: var(--muted);
}

.test-divider::before {
    background: var(--line);
}

.test-divider span {
    background: var(--card);
}

.test-accounts button {
    color: var(--fg);
    background: var(--card);
    border-color: var(--line);
}

.test-accounts button:hover {
    color: var(--primary);
    background: #eff6ff;
    border-color: #bfdbfe;
}

.corner-brand {
    color: #ffffff;
    background: var(--primary);
    border-color: #bfdbfe;
}

@media (max-width: 1040px) {
    .topbar-brand {
        min-width: 0;
    }
}

@media (max-width: 860px) {
    .app-shell {
        padding-left: 0;
    }
}

@media (max-width: 640px) {
    .topbar,
    .topbar-node {
        height: 64px;
        padding: 0 12px;
    }

    .page-content {
        padding: 14px 12px 24px;
    }

    .page-header h2,
    .page-title {
        font-size: 22px;
    }
}