/* ============================================================
   HAPPY DAY — Dark Premium SaaS Dashboard
   Accent: Neon Lime #B7FF3C
   Layout: Sidebar Navigation
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --bg: #0e0e10;
    --surface: #1a1a1f;
    --surface-soft: #222228;
    --surface-hover: #2a2a32;
    --ink: #f0f0f0;
    --ink-secondary: #c8c8ce;
    --muted: #8b8b96;
    --line: rgba(255, 255, 255, 0.08);
    --line-strong: rgba(255, 255, 255, 0.12);
    --primary: #B7FF3C;
    --primary-strong: #a3e632;
    --primary-dim: rgba(183, 255, 60, 0.12);
    --accent: #B7FF3C;
    --info: #60a5fa;
    --danger: #f87171;
    --danger-dim: rgba(248, 113, 113, 0.12);
    --warning: #fbbf24;
    --warning-dim: rgba(251, 191, 36, 0.12);
    --success: #4ade80;
    --success-dim: rgba(74, 222, 128, 0.12);
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.2), 0 8px 32px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.35);
    --radius: 20px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --sidebar-width: 256px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

button,
input,
select,
textarea {
    font: inherit;
}

img {
    display: block;
    max-width: 100%;
}

/* ============================================================
   SIDEBAR
   ============================================================ */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 40;
    width: var(--sidebar-width);
    height: 100dvh;
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border-right: 1px solid var(--line);
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-header {
    padding: 22px 20px 18px;
    border-bottom: 1px solid var(--line);
    flex-shrink: 0;
}

.sidebar-header .brand {
    min-width: 0;
}

/* ── Sidebar Nav ────────────────────────────────────────────── */

.sidebar .nav {
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 4px;
    overflow: visible;
    flex: 1;
}

.sidebar .nav a {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    min-height: 42px;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    transition:
        background 250ms cubic-bezier(0.4, 0, 0.2, 1),
        color 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar .nav a:hover {
    background: var(--surface-hover);
    color: var(--ink);
}

.sidebar .nav a.active {
    background: var(--primary-dim);
    color: var(--primary);
}

.sidebar .nav a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 22px;
    border-radius: 0 4px 4px 0;
    background: var(--primary);
}

.sidebar .nav a svg,
.sidebar .nav a i {
    flex-shrink: 0;
}

/* ── Sidebar Overlay (mobile) ───────────────────────────────── */

.sidebar-overlay {
    position: fixed;
    inset: 0;
    z-index: 35;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 350ms ease;
}

/* ── Sidebar Toggle Button ──────────────────────────────────── */

.sidebar-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-xs);
    background: var(--surface-soft);
    color: var(--ink-secondary);
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
    flex-shrink: 0;
    padding: 0;
}

.sidebar-toggle:hover {
    background: var(--surface-hover);
    color: var(--ink);
}

.sidebar-toggle svg {
    width: 20px;
    height: 20px;
}

/* ── Topbar (mobile-only for non-guard pages) ───────────────── */

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: none;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    background: rgba(14, 14, 16, 0.88);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
}

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

.topbar .brand small {
    display: none;
}

/* ── Brand ──────────────────────────────────────────────────── */

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 180px;
}

.brand-mark {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: #0e0e10;
    font-weight: 800;
    font-size: 14px;
    flex-shrink: 0;
}

.brand-logo {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-weight: 700;
    font-size: 15px;
    letter-spacing: -0.3px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.brand small {
    color: var(--muted);
    font-size: 11px;
    font-weight: 500;
}

/* ── Nav (base — used by guard-scan topbar) ─────────────────── */

.nav {
    display: flex;
    align-items: center;
    gap: 4px;
    overflow-x: auto;
    padding-bottom: 2px;
}

.nav a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 36px;
    padding: 7px 14px;
    border-radius: var(--radius-xs);
    color: var(--muted);
    white-space: nowrap;
    font-size: 13px;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
}

.nav a:hover {
    background: var(--surface-soft);
    color: var(--ink);
}

.nav a.active {
    background: var(--primary-dim);
    color: var(--primary);
}

.nav svg,
.btn svg,
.icon-btn svg {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
}

/* ── Page Shell ─────────────────────────────────────────────── */

.page-shell {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
    padding: 32px 0 56px;
}

@media (min-width: 921px) and (max-width: 1180px) {
    .page-shell {
        width: calc(100% - 28px);
        padding-top: 24px;
    }
}

/* ── Desktop: sidebar visible, body offset ──────────────────── */

@media (min-width: 1181px) {
    body:not(.guard-scan-page):not(.auth-page) {
        padding-left: var(--sidebar-width);
    }

    body:not(.guard-scan-page):not(.auth-page) .topbar {
        display: none;
    }
}

/* ── Mobile: sidebar hidden, topbar visible ─────────────────── */

@media (max-width: 1180px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 350ms cubic-bezier(0.4, 0, 0.2, 1);
        animation: none;
    }

    .sidebar .nav a {
        animation: none;
        opacity: 1;
    }

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

    body.sidebar-open .sidebar-overlay {
        opacity: 1;
        pointer-events: auto;
    }

    body:not(.guard-scan-page):not(.auth-page) .topbar {
        display: flex;
    }
}

/* ── Hero Row ───────────────────────────────────────────────── */

.hero-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 28px;
}

.hero-row h1 {
    margin: 4px 0 4px;
    font-size: clamp(26px, 4vw, 40px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.5px;
    color: var(--ink);
}

.hero-row .actions,
.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.eyebrow {
    margin: 0;
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

.lede {
    max-width: 680px;
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

/* ── Grid ───────────────────────────────────────────────────── */

.grid {
    display: grid;
    gap: 18px;
}

.grid.two {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.55fr);
}

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

.grid.four {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* ── Panels / Cards ─────────────────────────────────────────── */

.panel,
.stat-card,
.student-card,
.qr-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.panel:hover,
.stat-card:hover {
    border-color: var(--line-strong);
}

.panel {
    padding: 24px;
}

.panel.narrow {
    max-width: 560px;
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
}

.panel-head h2,
.panel h2,
.panel h3 {
    margin: 0;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.panel-head p {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 13px;
}

/* ── Stat Cards ─────────────────────────────────────────────── */

.stat-card {
    padding: 22px;
}

.stat-card span {
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.stat-card strong {
    display: block;
    margin-top: 8px;
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    color: var(--ink);
    letter-spacing: -1px;
}

.stat-card small {
    display: block;
    margin-top: 10px;
    color: var(--muted);
    font-size: 12px;
}

/* ── Stack / Form Grid ──────────────────────────────────────── */

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

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

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

/* ── Fields ─────────────────────────────────────────────────── */

.field {
    display: grid;
    gap: 6px;
}

.field label {
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.password-field {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 42px;
    gap: 8px;
    align-items: center;
}

.password-field .icon-btn {
    width: 42px;
    min-height: 42px;
    padding: 0;
}

/* ── Inputs ─────────────────────────────────────────────────── */

input,
select,
textarea {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
    color: var(--ink);
    padding: 10px 14px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

input::placeholder,
textarea::placeholder {
    color: var(--muted);
    opacity: 0.6;
}

textarea {
    min-height: 84px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-dim);
}

.check-row {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
}

.check-row input {
    width: 18px;
    min-height: 18px;
    accent-color: var(--primary);
}

.hd-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
}

.hd-picker .check-row {
    gap: 6px;
}

/* ── Buttons ────────────────────────────────────────────────── */

.btn,
.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
    color: var(--ink-secondary);
    padding: 9px 18px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    transition: background var(--transition), border-color var(--transition), color var(--transition), transform 150ms ease;
}

.btn:hover,
.icon-btn:hover {
    background: var(--surface-hover);
    border-color: var(--line-strong);
    color: var(--ink);
}

.btn:active,
.icon-btn:active {
    transform: scale(0.97);
}

.btn.primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #0e0e10;
    font-weight: 700;
}

.btn.primary:hover {
    background: var(--primary-strong);
    border-color: var(--primary-strong);
}

.btn.warning {
    border-color: rgba(251, 191, 36, 0.25);
    color: var(--warning);
}

.icon-btn.warning {
    border-color: rgba(251, 191, 36, 0.25);
    color: var(--warning);
}

.btn.danger {
    border-color: rgba(248, 113, 113, 0.25);
    color: var(--danger);
}

.icon-btn.danger {
    border-color: rgba(248, 113, 113, 0.25);
    color: var(--danger);
}

.btn[disabled],
.icon-btn[disabled] {
    cursor: not-allowed;
    opacity: 0.4;
}

/* ── Alerts ─────────────────────────────────────────────────── */

.alert {
    margin-bottom: 18px;
    padding: 14px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
    font-size: 13px;
    transition: opacity 0.2s ease, transform 0.2s ease, margin 0.2s ease, padding 0.2s ease;
}

.alert.success {
    border-color: rgba(74, 222, 128, 0.25);
    color: var(--success);
    background: var(--success-dim);
}

.alert.danger {
    border-color: rgba(248, 113, 113, 0.25);
    color: var(--danger);
    background: var(--danger-dim);
}

.alert.warning {
    border-color: rgba(251, 191, 36, 0.25);
    color: var(--warning);
    background: var(--warning-dim);
}

.alert.info {
    border-color: rgba(96, 165, 250, 0.25);
    color: var(--info);
    background: rgba(96, 165, 250, 0.08);
}

/* ── Tables ─────────────────────────────────────────────────── */

.table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    -webkit-overflow-scrolling: touch;
}

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

th,
td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    background: var(--surface-soft);
}

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

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* ── Badges ─────────────────────────────────────────────────── */

.badge {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.3px;
}

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

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

.badge.muted {
    background: rgba(139, 139, 150, 0.12);
    color: var(--muted);
}

.badge.info {
    background: rgba(96, 165, 250, 0.12);
    color: var(--info);
}

/* ── Scanner ────────────────────────────────────────────────── */

.scanner-frame {
    overflow: hidden;
    min-height: 280px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: #09090b;
}

.scanner-frame video,
.scanner-frame canvas,
.scanner-frame [style*="scaleX"] {
    border-radius: var(--radius);
    transform: scaleX(-1) !important;
    -webkit-transform: scaleX(-1) !important;
}

.scanner-status {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 13px;
}

/* ── Student Card ───────────────────────────────────────────── */

.student-card {
    padding: 22px;
}

.student-card .name {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.3px;
}

.meta-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 14px;
}

.meta-item {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
}

.meta-item span {
    display: block;
    color: var(--muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-item strong {
    display: block;
    margin-top: 4px;
    font-size: 15px;
    font-weight: 700;
}

/* ── Student Recap Cards (Walas) ───────────────────────────────── */

.top-recap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.top-recap-card {
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
}

.top-recap-card.rank-1 {
    border-color: rgba(250, 204, 21, 0.5);
    background: linear-gradient(160deg, rgba(250, 204, 21, 0.12), var(--surface-soft) 65%);
}

.top-recap-card.rank-2 {
    border-color: rgba(203, 213, 225, 0.4);
}

.top-recap-card.rank-3 {
    border-color: rgba(217, 119, 6, 0.4);
}

.rank-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    background: rgba(250, 204, 21, 0.14);
    color: #facc15;
}

.rank-badge i {
    width: 13px;
    height: 13px;
}

.top-recap-card.rank-2 .rank-badge {
    background: rgba(203, 213, 225, 0.14);
    color: #cbd5e1;
}

.top-recap-card.rank-3 .rank-badge {
    background: rgba(217, 119, 6, 0.14);
    color: #d97706;
}

.top-recap-card .name {
    margin: 14px 0 0;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.top-recap-card .nis {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 12px;
}

.top-recap-card .percent {
    margin: 14px 0 0;
    font-size: 30px;
    font-weight: 700;
    letter-spacing: -1px;
    color: var(--ink);
}

.top-recap-card .percent small {
    margin-left: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
    letter-spacing: 0;
}

.top-recap-card .detail {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 12px;
}

.recap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.recap-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
}

.recap-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.recap-card-head .name {
    margin: 0;
    font-size: 15px;
    font-weight: 700;
}

.recap-card-head .nis {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 12px;
}

.recap-percent-pill {
    flex-shrink: 0;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    background: var(--surface-hover);
    border: 1px solid var(--line-strong);
    color: var(--ink);
    white-space: nowrap;
}

.recap-percent-pill.complete {
    background: var(--success-dim);
    border-color: transparent;
    color: var(--success);
}

.recap-stand-list {
    display: grid;
    gap: 8px;
}

.recap-stand-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-xs);
    background: var(--surface-hover);
    font-size: 13px;
}

.recap-stand-row.empty {
    opacity: 0.55;
    padding: 8px 10px;
}

.recap-stand-row .stand-name {
    font-weight: 600;
    color: var(--ink);
}

.recap-stand-row .stand-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.recap-stand-row .stand-meta {
    color: var(--muted);
    font-size: 12px;
    white-space: nowrap;
}

.stopwatch-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 12px;
    margin-top: 16px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
}

.stopwatch-card span {
    grid-column: 1 / -1;
    color: var(--muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stopwatch-card strong {
    font-size: clamp(34px, 8vw, 56px);
    font-variant-numeric: tabular-nums;
    line-height: 1;
    letter-spacing: 0;
}

#group-stopwatch {
    grid-template-columns: 1fr;
}

#group-stopwatch strong {
    font-size: clamp(28px, 9vw, 40px);
}

#group-stopwatch .btn {
    width: 100%;
    justify-content: center;
}

/* ── Waiting List (Group Mode) ─────────────────────────────── */

.group-section {
    margin-top: 12px;
}

.waiting-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    min-height: 48px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
    overflow: hidden;
}

.waiting-list-empty {
    width: 100%;
    margin: 0;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
    padding: 16px 0;
}

.waiting-list-item {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    background: var(--surface);
    border-bottom: 1px solid var(--line-strong);
    transition: background var(--transition);
}

.waiting-list-item:last-child {
    border-bottom: none;
}

.waiting-list-item:hover {
    background: var(--surface-soft);
}

.waiting-list-col {
    font-size: 14px;
    color: var(--ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.waiting-list-name strong {
    font-weight: 600;
}

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

.waiting-list-remove {
    flex-shrink: 0;
    width: 28px !important;
    min-height: 28px !important;
    padding: 0 !important;
    border-color: rgba(248, 113, 113, 0.2) !important;
    color: var(--danger) !important;
}

.waiting-list-remove svg {
    width: 14px !important;
    height: 14px !important;
}

.group-controls {
    margin-top: 14px;
}

/* ── Utility ────────────────────────────────────────────────── */

.hidden {
    display: none !important;
}

body.modal-open {
    overflow: hidden;
}

/* ── Modal ──────────────────────────────────────────────────── */

.modal {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: grid;
    place-items: center;
    padding: 18px;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.modal-panel {
    width: min(720px, 100%);
    max-height: min(92vh, 860px);
    overflow-y: auto;
    padding: 28px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
}

.modal-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 18px;
}

.modal-head h2 {
    margin: 2px 0 0;
}

/* ── Empty / Muted ──────────────────────────────────────────── */

.empty {
    padding: 32px;
    color: var(--muted);
    text-align: center;
    font-size: 13px;
}

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

/* ── Filters ────────────────────────────────────────────────── */

.filters {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    gap: 12px;
    margin-bottom: 18px;
}

.filters .field {
    flex: 1 1 180px;
    min-width: 180px;
}

/* ── QR Grid / Card ─────────────────────────────────────────── */

.qr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.qr-card {
    display: grid;
    gap: 8px;
    padding: 16px;
    text-align: center;
    break-inside: avoid;
}

.qr-card img {
    width: 142px;
    height: 142px;
    margin: 0 auto;
    object-fit: contain;
    border-radius: var(--radius-xs);
    background: #ffffff;
    padding: 6px;
}

.qr-card strong,
.qr-card span {
    overflow-wrap: anywhere;
}

.qr-card strong {
    font-weight: 600;
    font-size: 13px;
}

.qr-card span {
    color: var(--muted);
    font-size: 12px;
}

/* ── Progress Bar ───────────────────────────────────────────── */

.progress-bar {
    width: 100%;
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--surface-soft);
}

.progress-bar span {
    display: block;
    height: 100%;
    background: var(--primary);
    border-radius: 999px;
    transition: width 0.5s ease;
}

/* ── Pagination ─────────────────────────────────────────────── */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.pagination-pages {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-xs);
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
    transition: background var(--transition), color var(--transition);
    cursor: pointer;
}

.pagination-num:hover {
    background: var(--surface-hover);
    color: var(--ink);
}

.pagination-num.active {
    background: var(--primary);
    color: #0e0e10;
    font-weight: 700;
}

.pagination-dots {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 38px;
    color: var(--muted);
    font-size: 14px;
    letter-spacing: 2px;
    user-select: none;
}

@media (max-width: 640px) {
    .pagination .btn span {
        display: none;
    }
    .pagination .btn {
        padding: 8px 10px;
        min-width: 40px;
    }
}

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

/* ── Tablet / smaller desktop ───────────────────────────────── */

@media (min-width: 921px) and (max-width: 1180px) {
    .grid.four,
    .grid.three {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .panel {
        padding: 20px;
    }
}

@media (max-width: 920px) {
    .page-shell {
        width: min(100% - 28px, 1120px);
        padding: 24px 0 48px;
    }

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

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

    .hero-row {
        align-items: stretch;
        flex-direction: column;
        gap: 14px;
        margin-bottom: 20px;
    }

    .hero-row .actions {
        align-self: stretch;
    }

    .hero-row .actions .btn {
        flex: 1 1 180px;
    }

    .panel {
        padding: 20px;
    }

    .table-wrap {
        border-radius: var(--radius-sm);
    }
}

/* ── Mobile ─────────────────────────────────────────────────── */

@media (max-width: 640px) {
    .page-shell {
        width: min(100% - 20px, 1120px);
        padding-top: 18px;
        padding-bottom: 36px;
    }

    .topbar {
        padding: 10px;
    }

    .sidebar {
        width: min(86vw, 304px);
    }

    .sidebar-header {
        padding: 18px 16px 14px;
    }

    .sidebar .nav {
        padding: 10px;
    }

    .hero-row h1 {
        font-size: clamp(24px, 9vw, 34px);
    }

    .lede {
        font-size: 13px;
    }

    .grid.three,
    .grid.four {
        grid-template-columns: 1fr;
    }

    .grid,
    .stack {
        gap: 12px;
    }

    .panel,
    .stat-card,
    .student-card,
    .qr-card {
        border-radius: var(--radius-sm);
    }

    .panel {
        padding: 16px;
    }

    .panel-head {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
        margin-bottom: 14px;
    }

    .stat-card {
        padding: 16px;
    }

    .stat-card strong {
        font-size: 28px;
    }

    .hero-row .actions,
    .actions {
        gap: 8px;
    }

    .form-grid,
    .form-grid.three,
    .meta-list {
        grid-template-columns: 1fr;
    }

    .filters {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .filters .field,
    .filters .btn {
        width: 100%;
        min-width: 0;
    }

    .filters .btn,
    .hero-row .actions .btn,
    .panel > .actions .btn,
    form.stack > .btn {
        width: 100%;
    }

    .btn,
    .icon-btn,
    input,
    select,
    textarea {
        min-height: 44px;
    }

    .btn {
        padding-inline: 14px;
    }

    th,
    td {
        padding: 10px 12px;
    }

    table {
        min-width: 680px;
    }

    .modal {
        align-items: end;
        padding: 10px;
    }

    .modal-panel {
        width: 100%;
        max-height: calc(100dvh - 20px);
        padding: 18px;
        border-radius: var(--radius-sm);
    }

    .brand {
        min-width: 0;
    }
}

@media (max-width: 420px) {
    .page-shell {
        width: min(100% - 16px, 1120px);
    }

    .brand-mark,
    .brand-logo {
        width: 34px;
        height: 34px;
    }

    .brand strong {
        max-width: 170px;
        font-size: 14px;
    }

    .topbar .brand strong {
        max-width: 145px;
    }

    .qr-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 10px;
    }

    .pagination-pages {
        width: 100%;
        justify-content: center;
        order: 3;
    }
}

/* ============================================================
   AUTH PAGE (Centered Login Layout)
   ============================================================ */

body.auth-page {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}

body.auth-page .topbar {
    display: flex;
    position: static;
    height: 64px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 12px 24px;
    background: transparent;
    border-bottom: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

body.auth-page .topbar .brand {
    min-width: 0;
}

body.auth-page .topbar .brand small {
    display: none;
}

body.auth-page .topbar .nav {
    width: auto;
    margin-left: auto;
    overflow: visible;
}

body.auth-page .topbar .nav a {
    min-height: 36px;
    padding: 7px 12px;
}

body.auth-page .page-shell {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 480px;
    width: 100%;
    margin: 0 auto;
    padding: 20px 16px 80px;
}

body.auth-page .hero-row {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 24px;
}

body.auth-page .hero-row h1 {
    font-size: clamp(24px, 3vw, 28px);
}

.auth-brand-hero {
    text-align: center;
    margin-bottom: 40px;
}

.auth-brand-hero h1 {
    font-size: clamp(32px, 5vw, 42px);
    font-weight: 800;
    letter-spacing: -1.5px;
    margin: 0 0 8px;
    color: var(--primary);
}

.auth-brand-hero h2 {
    font-size: clamp(15px, 2vw, 18px);
    font-weight: 600;
    margin: 0 0 12px;
    color: var(--ink);
    letter-spacing: -0.2px;
}

.auth-brand-hero p {
    font-size: 14px;
    color: var(--muted);
    margin: 0;
    line-height: 1.6;
}

@media (max-width: 480px) {
    body.auth-page .topbar {
        padding: 10px 16px;
    }
    body.auth-page .topbar .nav a span {
        display: none;
    }
}

/* ============================================================
   GUARD SCAN PAGE (uses original topbar, no sidebar)
   ============================================================ */

body.guard-scan-page {
    height: 100dvh;
    overflow: hidden;
}

body.guard-scan-page.guard-group-mode {
    height: auto;
    min-height: 100dvh;
    overflow-y: auto;
}

body.guard-group-mode .page-shell {
    height: auto;
    min-height: calc(100dvh - 58px);
    overflow: visible;
}

body.guard-group-mode .scan-panel {
    overflow: visible;
}


.guard-scan-page .topbar {
    display: flex;
    position: static;
    height: 58px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 12px;
}

.guard-scan-page .brand {
    min-width: 0;
}

.guard-scan-page .brand-mark {
    width: 36px;
    height: 36px;
}

.guard-scan-page .brand-logo {
    width: 36px;
    height: 36px;
}

.guard-scan-page .brand small {
    display: none;
}

.guard-scan-page .nav {
    width: auto;
    margin-left: auto;
    overflow: visible;
}

.guard-scan-page .nav a {
    min-height: 36px;
    padding: 7px 9px;
}

.guard-scan-page .page-shell {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 10px;
    width: min(1220px, calc(100% - 20px));
    height: calc(100dvh - 58px);
    padding: 10px 0;
    overflow: hidden;
}

.scan-hero {
    align-items: center;
    margin-bottom: 0;
}

.scan-hero h1 {
    margin: 2px 0 0;
    font-size: clamp(22px, 3vw, 32px);
}

.scan-hero .lede {
    display: none;
}

.scan-panel {
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr);
    gap: 10px;
    min-height: 0;
    padding: 16px;
    overflow: hidden;
}

.scan-panel .panel-head,
.scan-panel .alert,
.scan-panel .scanner-status {
    margin-bottom: 0;
}

.scan-workspace {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
    gap: 12px;
    min-height: 0;
}

.scan-controls {
    display: grid;
    align-content: start;
    gap: 10px;
    min-height: 0;
}

.scan-manual-form {
    gap: 8px;
}

.scan-manual-form .btn {
    width: 100%;
}

.guard-scan-page .scanner-frame {
    display: grid;
    height: 100%;
    min-height: 0;
}

.guard-scan-page .scanner-frame video {
    width: 100% !important;
    height: 100% !important;
    object-fit: contain;
    transform: scaleX(-1) !important;
    -webkit-transform: scaleX(-1) !important;
}

.guard-scan-page .scanner-frame canvas {
    transform: scaleX(-1) !important;
    -webkit-transform: scaleX(-1) !important;
}

.guard-scan-page #scan-reader > div {
    height: 100%;
}

/* ── Guard Scan: Mobile ─────────────────────────────────────── */

@media (max-width: 760px) {
    .guard-scan-page .topbar {
        height: 54px;
    }

    .guard-scan-page .brand strong {
        font-size: 14px;
    }

    .guard-scan-page .nav a span {
        display: none;
    }

    .guard-scan-page .page-shell {
        width: calc(100% - 14px);
        height: calc(100dvh - 54px);
        gap: 7px;
        padding: 7px 0;
    }

    .scan-hero .eyebrow {
        display: none;
    }

    .scan-hero h1 {
        font-size: 20px;
    }

    .scan-hero .actions .btn span {
        display: none;
    }

    .scan-panel {
        gap: 8px;
        padding: 10px;
    }

    .scan-panel .panel-head h2 {
        display: none;
    }

    .scan-workspace {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(0, 1fr) auto;
        gap: 8px;
    }

    .scan-controls {
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: end;
        gap: 8px;
    }

    .scan-controls .scanner-status {
        grid-column: 1 / -1;
        margin-top: 0;
    }

    .scan-controls .actions {
        flex-wrap: nowrap;
    }

    .scan-controls .actions .btn {
        min-width: 42px;
        padding: 8px 10px;
    }

    .scan-controls .actions .btn span {
        display: none;
    }

    .scan-manual-form {
        grid-column: 1 / -1;
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: end;
    }

    .scan-manual-form .btn {
        width: auto;
        min-width: 42px;
        padding: 8px 10px;
    }

    .scan-manual-form .btn span {
        display: none;
    }

    .stopwatch-card {
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 14px;
    }

    .stopwatch-card .btn {
        width: 100%;
    }

    .group-section {
        margin-top: 8px;
    }

    .group-section .panel-head h2 {
        font-size: 15px;
    }

    .waiting-list {
        padding: 8px;
        gap: 6px;
    }

    .waiting-list-item {
        width: 100%;
        padding: 6px 10px;
    }
}

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

@media print {
    body {
        background: #fff;
        color: #111;
        padding-left: 0 !important;
    }

    .sidebar,
    .sidebar-overlay,
    .topbar,
    .hero-row .actions,
    .filters,
    .no-print {
        display: none !important;
    }

    .page-shell {
        width: 100%;
        padding: 0;
    }

    .hero-row {
        margin-bottom: 10px;
    }

    .qr-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 10px;
    }

    .qr-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }

    .panel,
    .stat-card,
    .student-card,
    .qr-card {
        background: #fff;
        border-color: #ddd;
        box-shadow: none;
    }

    .table-wrap {
        border-color: #ddd;
    }

    th {
        background: #f5f5f5;
        color: #333;
    }

    td, th {
        border-color: #ddd;
    }
}

/* ============================================================
   SCROLLBAR
   ============================================================ */

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ── Selection ──────────────────────────────────────────────── */

::selection {
    background: var(--primary);
    color: #0e0e10;
}

.waiting-list-team {
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--text);
    font-size: 0.875rem;
    cursor: pointer;
    margin-right: 8px;
}
.waiting-list-team:focus {
    border-color: var(--accent);
    outline: none;
}