:root {
    --purple-50:  #f3effd;
    --purple-100: #e3dafa;
    --purple-200: #c8b5f5;
    --purple-300: #a684ec;
    --purple-400: #8253df;
    --purple-500: #5e2ec8;
    --purple-600: #4b1ea8;
    --purple-700: #3a1788;
    --purple-800: #2c106a;
    --purple-900: #1f0a4e;
    --purple-950: #120630;

    --bg:        #f3eef9;
    --bg-alt:    #ebe2f5;
    --surface:   #ffffff;
    --text:      #160d2b;
    --text-muted:#5a4f78;
    --border:    #d9c9ee;
    --border-strong: #b9a4d8;

    --shadow-sm: 0 2px 8px rgba(31, 10, 78, 0.08);
    --shadow-md: 0 8px 24px rgba(31, 10, 78, 0.14);
    --shadow-lg: 0 24px 70px rgba(18, 6, 48, 0.28);

    --success: #059669;
    --success-bg: rgba(16, 185, 129, 0.16);
    --success-bg-strong: rgba(16, 185, 129, 0.28);
    --success-border: rgba(5, 150, 105, 0.45);

    --danger: #dc2626;
    --danger-bg: rgba(239, 68, 68, 0.14);
    --danger-bg-strong: rgba(239, 68, 68, 0.28);
    --danger-border: rgba(220, 38, 38, 0.45);

    --warning: #d97706;
    --warning-bg: rgba(217, 119, 6, 0.14);
    --warning-border: rgba(217, 119, 6, 0.45);

    --radius: 14px;
    --radius-sm: 8px;
    --radius-lg: 22px;

    --font-brand: "Sora", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

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

html, body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    min-height: 100%;
}

body {
    background:
        radial-gradient(circle at 0% 0%, rgba(94, 46, 200, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 100% 100%, rgba(31, 10, 78, 0.16) 0%, transparent 45%),
        var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--purple-700); text-decoration: none; }
a:hover { color: var(--purple-900); }

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 22px;
    width: 100%;
}

.main { flex: 1; padding: 32px 0 60px; }

.topbar {
    background: linear-gradient(135deg, var(--purple-950) 0%, var(--purple-800) 50%, var(--purple-600) 100%);
    color: #fff;
    box-shadow: 0 6px 30px rgba(18, 6, 48, 0.5);
    position: sticky;
    top: 0;
    z-index: 100;
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }

.brand {
    display: inline-flex;
    align-items: center;
    color: #fff;
    text-decoration: none;
    font-family: var(--font-brand);
    font-weight: 800;
    font-size: 38px;
    letter-spacing: -0.07em;
    line-height: 1;
    padding: 4px 2px;
    transition: filter 0.2s, transform 0.2s;
}
.brand:hover { color: #fff; filter: brightness(1.15); transform: translateY(-1px); }

.brand-text {
    background:
        linear-gradient(180deg, #ffffff 0%, #d6c8ff 50%, #a684ec 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 6px 18px rgba(167, 132, 236, 0.45));
}

.topnav { display: flex; gap: 4px; align-items: center; }
.topnav a {
    color: rgba(255, 255, 255, 0.92);
    text-decoration: none;
    padding: 9px 16px;
    border-radius: 999px;
    transition: background 0.2s, color 0.2s;
    font-weight: 500;
    font-size: 14px;
}
.topnav a:hover { background: rgba(255, 255, 255, 0.14); color: #fff; }
.topnav a.logout { background: rgba(255, 255, 255, 0.12); }
.topnav a.logout:hover { background: rgba(255, 255, 255, 0.22); }
.topnav-live { display: inline-flex; align-items: center; gap: 6px; }
.topnav-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #34d399;
    box-shadow: 0 0 8px #34d399;
    animation: pulse-dot 1.6s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(1.3); }
}

.live-controls { display: flex; gap: 10px; align-items: center; }
.live-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    margin-right: 4px;
    box-shadow: 0 0 8px #10b981;
    animation: pulse-dot 1.6s ease-in-out infinite;
    vertical-align: middle;
}
.live-dot.live-dot-stale { background: #f59e0b; box-shadow: 0 0 8px #f59e0b; }

.live-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}
.live-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 4px solid #10b981;
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: box-shadow 0.2s, border-color 0.2s;
}
.live-card:hover { box-shadow: var(--shadow-md); }
.live-card-stale { border-left-color: var(--warning); opacity: 0.85; }

.live-card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.live-card-name { display: flex; flex-direction: column; gap: 6px; }
.live-card-name strong { font-size: 16px; color: var(--purple-900); font-family: var(--font-brand); font-weight: 700; }
.live-card-time {
    background: var(--purple-100);
    color: var(--purple-800);
    padding: 6px 12px;
    border-radius: 999px;
    font-family: var(--font-brand);
    font-weight: 700;
    font-size: 14px;
    border: 1px solid var(--purple-200);
    flex-shrink: 0;
    white-space: nowrap;
}
.live-card-time-urgent { background: var(--danger-bg); color: var(--danger); border-color: var(--danger-border); animation: pulse-urgent 1s ease-in-out infinite; }
@keyframes pulse-urgent {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.live-card-test { font-size: 14px; color: var(--text-muted); padding-bottom: 10px; border-bottom: 1px dashed var(--border); }

.live-progress { display: flex; flex-direction: column; gap: 6px; }
.live-progress-row { display: flex; justify-content: space-between; align-items: center; font-size: 12px; }
.live-progress-label { color: var(--text-muted); }
.live-progress-value { font-weight: 700; color: var(--purple-900); font-family: var(--font-brand); }
.live-bar { height: 6px; background: var(--border); border-radius: 999px; overflow: hidden; margin-bottom: 4px; }
.live-bar-fill { height: 100%; transition: width 0.5s; }
.live-bar-current { background: linear-gradient(90deg, var(--purple-500), var(--purple-700)); }
.live-bar-answered { background: linear-gradient(90deg, #34d399, #10b981); }

.live-card-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--text-muted);
    padding-top: 10px;
    border-top: 1px dashed var(--border);
}
.live-card-meta .live-events-mid { color: var(--warning); font-weight: 700; }
.live-card-meta .live-events-high { color: var(--danger); font-weight: 700; background: var(--danger-bg); padding: 2px 8px; border-radius: 999px; border: 1px solid var(--danger-border); }

.footer {
    margin-top: 60px;
    padding: 28px 0;
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    background: linear-gradient(135deg, var(--purple-950) 0%, var(--purple-800) 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.footer-left { display: flex; flex-direction: column; gap: 2px; }
.footer-brand {
    font-family: var(--font-brand);
    font-weight: 800;
    background: linear-gradient(180deg, #ffffff 0%, #c4b5fd 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 22px;
    letter-spacing: -0.05em;
    line-height: 1;
}
.footer-tagline {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.02em;
}
.footer-right {
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-dev-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}
.footer-tg {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 14px;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    transition: background 0.2s, transform 0.15s, border-color 0.2s;
    backdrop-filter: blur(8px);
}
.footer-tg:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.10));
    border-color: rgba(255, 255, 255, 0.35);
    color: #fff;
    transform: translateY(-1px);
}
.footer-tg svg { color: #c4b5fd; }
@media (max-width: 560px) {
    .footer-inner { flex-direction: column; align-items: flex-start; text-align: left; }
}

.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin: 16px 0;
    font-weight: 500;
    border: 1px solid transparent;
}
.alert-error { background: var(--danger-bg); color: #991b1b; border-color: var(--danger-border); }
.alert-success { background: var(--success-bg); color: #065f46; border-color: var(--success-border); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border: 0;
    border-radius: 999px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.08s, box-shadow 0.2s, background 0.2s, color 0.2s;
    font-family: inherit;
    white-space: nowrap;
    height: 38px;
    line-height: 1;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
    background: linear-gradient(135deg, var(--purple-800), var(--purple-600));
    color: #fff;
    box-shadow: 0 6px 18px rgba(31, 10, 78, 0.32);
}
.btn-primary:hover { box-shadow: 0 12px 30px rgba(31, 10, 78, 0.45); transform: translateY(-1px); color: #fff; }
.btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    box-shadow: 0 6px 18px rgba(5, 150, 105, 0.32);
}
.btn-success:hover { color: #fff; transform: translateY(-1px); }
.btn-ghost {
    background: var(--surface);
    color: var(--purple-700);
    border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--purple-50); border-color: var(--border-strong); }
.btn-danger {
    background: var(--danger-bg);
    color: #991b1b;
    border: 1px solid var(--danger-border);
}
.btn-danger:hover { background: var(--danger-bg-strong); }
.btn-sm { padding: 6px 12px; font-size: 13px; height: 32px; }
.btn-lg { padding: 14px 28px; font-size: 16px; height: 48px; }

.card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    margin-bottom: 22px;
}
.card h3 { margin-bottom: 8px; color: var(--purple-800); font-family: var(--font-brand); font-weight: 700; }
.muted { color: var(--text-muted); font-size: 13px; }
.empty {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface);
}

.hero { padding: 36px 0; }
.hero-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-lg);
    max-width: 820px;
    margin: 0 auto;
    border: 1px solid var(--border);
}
.hero-card h1 {
    font-family: var(--font-brand);
    font-size: 40px;
    font-weight: 800;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, var(--purple-900), var(--purple-500));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 8px;
    line-height: 1.05;
}
.hero-sub { color: var(--text-muted); margin-bottom: 28px; }

.start-form { display: flex; flex-direction: column; gap: 22px; }

.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-weight: 600; font-size: 14px; color: var(--text); }
.field input[type=text],
.field input[type=password],
.field select,
.field textarea {
    padding: 14px 16px;
    border-radius: var(--radius);
    border: 2px solid var(--border);
    background: #fff;
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-family: inherit;
    color: var(--text);
}
.field input:focus, .field select:focus, .field textarea:focus {
    outline: 0;
    border-color: var(--purple-500);
    box-shadow: 0 0 0 4px rgba(94, 46, 200, 0.18);
}

.test-list { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 700px) { .test-list { grid-template-columns: repeat(2, 1fr); } }

.test-card {
    position: relative;
    cursor: pointer;
    border-radius: var(--radius);
    border: 2px solid var(--border);
    padding: 18px;
    transition: all 0.2s;
    background: #fff;
}
.test-card:hover { border-color: var(--purple-300); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.test-card input { position: absolute; opacity: 0; }
.test-card:has(input:checked) { border-color: var(--purple-500); background: var(--purple-50); }

.test-card-title { font-weight: 700; font-size: 16px; color: var(--purple-900); }
.test-card-desc { color: var(--text-muted); font-size: 13px; margin-top: 4px; }
.test-card-meta { margin-top: 10px; display: flex; gap: 12px; flex-wrap: wrap; font-size: 12px; color: var(--purple-700); }

.login-page { display: flex; justify-content: center; padding: 60px 20px; }
.login-card {
    background: var(--surface);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    border: 1px solid var(--border);
}
.login-card h1 { font-family: var(--font-brand); font-size: 24px; margin-bottom: 6px; color: var(--purple-800); font-weight: 700; }

.admin-page { padding: 12px 0 60px; }
.page-title {
    font-family: var(--font-brand);
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: 32px;
    margin-bottom: 24px;
    color: var(--purple-900);
    line-height: 1.1;
}
.section-title {
    font-family: var(--font-brand);
    font-weight: 700;
    letter-spacing: -0.01em;
    font-size: 20px;
    margin: 32px 0 14px;
    color: var(--purple-800);
}
.back-link { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 14px; color: var(--purple-700); text-decoration: none; font-size: 14px; }
.back-link:hover { color: var(--purple-900); }

.stats-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    margin-bottom: 22px;
}
.stat-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.stat-value {
    font-family: var(--font-brand);
    font-size: 38px;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--purple-900), var(--purple-500));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
}
.stat-label { color: var(--text-muted); font-size: 13px; margin-top: 6px; }

.upload-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 14px;
}
.upload-form input[type=file] {
    padding: 10px 14px;
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--purple-50);
    font-size: 14px;
    color: var(--text);
    flex: 1 1 280px;
}

.table-wrap {
    overflow-x: auto;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td {
    padding: 14px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    vertical-align: middle;
    line-height: 1.4;
}
.data-table th {
    background: var(--purple-50);
    color: var(--purple-800);
    font-weight: 700;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 2px solid var(--border-strong);
}
.data-table tr:last-child td { border-bottom: 0; }
.data-table tr:hover td { background: rgba(243, 239, 253, 0.5); }
td.actions, .data-table td.actions,
.data-table th:last-child {
    width: 1%;
    white-space: nowrap;
}
.data-table td.actions { text-align: right; padding-left: 4px; padding-right: 16px; }
.data-table th:last-child { text-align: right; padding-right: 16px; }
.data-table td.actions > * {
    display: inline-flex;
    vertical-align: middle;
}
.data-table .actions form { display: inline-flex; margin: 0; vertical-align: middle; }
.data-table .actions .btn { height: 32px; vertical-align: middle; }
.data-table .actions form + .btn,
.data-table .actions .btn + form,
.data-table .actions .btn + .btn,
.data-table .actions form + form { margin-left: 6px; }
.data-table .actions .btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: 999px;
    font-size: 16px;
    line-height: 1;
    flex-shrink: 0;
}
.data-table code {
    background: var(--purple-100);
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 12px;
    color: var(--purple-800);
    font-family: ui-monospace, monospace;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
}
.badge-success { background: var(--success-bg); color: #065f46; border: 1px solid var(--success-border); }
.badge-fail { background: var(--danger-bg); color: #991b1b; border: 1px solid var(--danger-border); }
.badge-muted { background: #e5e7eb; color: #4b5563; }

.cheat-badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 12px;
    border: 1px solid transparent;
}
.cheat-low { background: var(--success-bg); color: #065f46; border-color: var(--success-border); }
.cheat-mid { background: var(--warning-bg); color: #92400e; border-color: var(--warning-border); }
.cheat-high { background: var(--danger-bg); color: #991b1b; border-color: var(--danger-border); }

.grade-pill {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 11px;
    font-family: var(--font-brand);
    font-weight: 800;
    font-size: 18px;
    color: #fff;
    box-shadow: 0 4px 12px rgba(31, 10, 78, 0.2);
}
.grade-2 { background: linear-gradient(135deg, #ef4444, #b91c1c); }
.grade-3 { background: linear-gradient(135deg, #f59e0b, #b45309); }
.grade-4 { background: linear-gradient(135deg, var(--purple-500), var(--purple-700)); }
.grade-5 { background: linear-gradient(135deg, #10b981, #047857); }

.result-grade-big {
    font-family: var(--font-brand);
    font-size: 120px;
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: -0.06em;
}
.result-sub { margin-top: 10px; font-size: 14px; opacity: 0.95; }

.filter-bar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    align-items: center;
    margin-bottom: 16px;
    background: var(--surface);
    padding: 14px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.filter-form {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    min-width: 0;
}
.filter-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    white-space: nowrap;
}
.filter-bar select {
    padding: 0 36px 0 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: #fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path fill='%235e2ec8' d='M6 8.5L1.5 4h9z'/></svg>") no-repeat right 12px center;
    appearance: none;
    -webkit-appearance: none;
    font-family: inherit;
    font-size: 14px;
    color: var(--text);
    height: 38px;
    width: 240px;
    max-width: 100%;
    flex: 0 1 240px;
    cursor: pointer;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}
.filter-bar select[name="sort"] { width: 230px; flex-basis: 230px; }
.filter-bar select:focus { outline: 0; border-color: var(--purple-400); box-shadow: 0 0 0 3px rgba(94, 46, 200, 0.15); }
.filter-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: nowrap;
}
.filter-actions form { display: inline-flex; margin: 0; }
.filter-spacer { flex: 1; }
@media (max-width: 880px) {
    .filter-bar { grid-template-columns: 1fr; }
    .filter-actions { justify-content: flex-start; flex-wrap: wrap; }
    .filter-bar select { width: 100%; flex-basis: 100%; }
}

.test-shell {
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: pan-y;
}
.test-shell.unselectable * {
    user-select: none !important;
    -webkit-user-select: none !important;
    -webkit-touch-callout: none !important;
    -webkit-tap-highlight-color: transparent !important;
}
.test-shell.unselectable input,
.test-shell.unselectable textarea {
    user-select: text !important;
    -webkit-user-select: text !important;
    -webkit-touch-callout: default !important;
}

.test-header {
    background: linear-gradient(135deg, var(--purple-950), var(--purple-700));
    color: #fff;
    padding: 18px 0;
    margin-bottom: 22px;
    box-shadow: var(--shadow-md);
}
.test-header-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; }
.test-info { display: flex; flex-direction: column; gap: 4px; }
.test-title { font-family: var(--font-brand); font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.test-student { font-size: 13px; opacity: 0.85; }
.test-stats { display: flex; gap: 10px; }
.stat-pill {
    background: rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    padding: 7px 16px;
    font-size: 13px;
    font-weight: 600;
}
.stat-pill.timer.danger { background: var(--danger); border-color: var(--danger); }

.progress-bar { height: 8px; background: var(--border); border-radius: 999px; overflow: hidden; margin-bottom: 24px; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--purple-500), var(--purple-900)); transition: width 0.3s; width: 0; }

.test-body { padding: 0 0 40px; }

.question-area {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    margin-bottom: 22px;
    min-height: 320px;
}
.question-text {
    font-family: var(--font-brand);
    font-size: 22px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--purple-900);
    margin-bottom: 22px;
    letter-spacing: -0.01em;
}

.option-list { display: flex; flex-direction: column; gap: 10px; }
.option-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    background: #fff;
    transition: all 0.15s;
    font-size: 15px;
}
.option-item:hover { border-color: var(--purple-300); background: var(--purple-50); }
.option-item input { width: 20px; height: 20px; accent-color: var(--purple-700); }
.option-item.checked { border-color: var(--purple-500); background: var(--purple-50); }

.text-answer { width: 100%; padding: 14px 16px; border-radius: var(--radius); border: 2px solid var(--border); font-size: 15px; font-family: inherit; }
.text-answer:focus { border-color: var(--purple-500); outline: 0; box-shadow: 0 0 0 4px rgba(94, 46, 200, 0.18); }

.tf-row { display: flex; gap: 14px; }
.tf-row .option-item { flex: 1; justify-content: center; padding: 18px; font-size: 16px; font-weight: 600; }

.matching-table { width: 100%; border-collapse: separate; border-spacing: 0 8px; table-layout: fixed; }
.matching-table td { padding: 0 6px; vertical-align: middle; width: 50%; }
.matching-table td:first-child { padding-left: 0; }
.matching-table td:last-child { padding-right: 0; }
.matching-left { padding: 12px 16px; border-radius: var(--radius); background: var(--purple-50); border: 1px solid var(--purple-200); font-weight: 500; }
.matching-table select {
    width: 100%;
    min-height: 46px;
    padding: 10px 38px 10px 14px;
    border-radius: var(--radius);
    border: 2px solid var(--border);
    font-size: 14px;
    line-height: 1.3;
    background: #fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path fill='%235e2ec8' d='M6 8.5L1.5 4h9z'/></svg>") no-repeat right 12px center;
    appearance: none;
    -webkit-appearance: none;
    font-family: inherit;
}
.matching-table select:focus { border-color: var(--purple-500); outline: 0; }
@media (max-width: 760px) {
    .matching-table,
    .matching-table tbody,
    .matching-table tr,
    .matching-table td {
        display: block;
        width: 100%;
    }
    .matching-table { border-spacing: 0; }
    .matching-table tr { margin-bottom: 10px; }
    .matching-table td { padding: 4px 0; }
}

.ordering-list { display: flex; flex-direction: column; gap: 8px; }
.ordering-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: #fff;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: grab;
    user-select: none;
    transition: all 0.15s;
}
.ordering-item:active { cursor: grabbing; }
.ordering-item.dragging { opacity: 0.4; }
.ordering-item .handle { color: var(--purple-400); font-size: 18px; }
.ordering-item .ord-num {
    width: 28px; height: 28px; border-radius: 999px;
    background: var(--purple-100); color: var(--purple-700);
    display: grid; place-items: center; font-weight: 700; font-size: 13px;
}
.ordering-item:hover { border-color: var(--purple-300); }

.fill-blank-text { font-size: 16px; line-height: 2.4; word-spacing: 4px; }
.fill-blank-text input {
    display: inline-block;
    min-width: 120px;
    padding: 6px 12px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    background: #fff;
}
.fill-blank-text input:focus { border-color: var(--purple-500); outline: 0; }

.test-controls { display: flex; gap: 12px; justify-content: space-between; margin-bottom: 22px; }

.question-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    background: var(--surface);
    padding: 14px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.qnav-btn {
    width: 38px; height: 38px;
    border-radius: 10px;
    border: 2px solid var(--border);
    background: #fff;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}
.qnav-btn:hover { border-color: var(--purple-400); }
.qnav-btn.answered { background: var(--purple-100); border-color: var(--purple-300); color: var(--purple-800); }
.qnav-btn.current { background: linear-gradient(135deg, var(--purple-800), var(--purple-600)); color: #fff; border-color: transparent; box-shadow: 0 4px 12px rgba(31, 10, 78, 0.32); }
.qnav-btn.locked { opacity: 0.4; cursor: not-allowed; }
.qnav-btn.locked::after { content: ' 🔒'; font-size: 10px; }
.qnav-btn:disabled { cursor: not-allowed; opacity: 0.5; }

.overlay {
    position: fixed; inset: 0;
    background: rgba(18, 6, 48, 0.92);
    backdrop-filter: blur(10px);
    display: grid;
    place-items: center;
    z-index: 1000;
}
.overlay-box {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 42px;
    max-width: 480px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}
.overlay-box h2 { color: var(--purple-800); margin-bottom: 12px; font-family: var(--font-brand); font-size: 24px; font-weight: 700; }
.overlay-box p { color: var(--text-muted); margin-bottom: 22px; }
.overlay-box.warning h2 { color: var(--warning); }

.loader {
    width: 50px; height: 50px;
    border: 4px solid var(--purple-100);
    border-top-color: var(--purple-700);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.result-page { padding: 30px 0; }
.result-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    max-width: 760px;
    margin: 0 auto 22px;
}
.result-header { padding: 50px 30px; text-align: center; color: #fff; }
.result-header.passed { background: linear-gradient(135deg, #047857, #059669); }
.result-header.failed { background: linear-gradient(135deg, #b91c1c, #ef4444); }
.result-percent {
    font-family: var(--font-brand);
    font-size: 64px;
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.04em;
}
.result-status { font-size: 18px; opacity: 0.95; margin-top: 6px; font-weight: 500; }

.result-grid {
    display: grid;
    gap: 0;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.result-stat {
    padding: 18px 22px;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
}
.result-stat .label {
    color: var(--text-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}
.result-stat .value {
    color: var(--purple-900);
    font-weight: 700;
    font-size: 16px;
    margin-top: 6px;
    word-break: break-word;
}
.result-stat .value.cheat-high { color: var(--danger); }
.result-stat .value.cheat-mid { color: var(--warning); }
.result-stat .value.cheat-low { color: var(--success); }

.result-actions { padding: 26px; text-align: center; }

.answers-list { display: flex; flex-direction: column; gap: 14px; }

.answer-card {
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow-sm);
    border-left-width: 6px;
    transition: box-shadow 0.2s;
}
.answer-card:hover { box-shadow: var(--shadow-md); }
.answer-card.correct {
    border-color: var(--success-border);
    border-left-color: var(--success);
    background: linear-gradient(135deg, var(--success-bg) 0%, var(--surface) 60%);
}
.answer-card.partial {
    border-color: var(--warning-border);
    border-left-color: var(--warning);
    background: linear-gradient(135deg, var(--warning-bg) 0%, var(--surface) 60%);
}
.answer-card.wrong {
    border-color: var(--danger-border);
    border-left-color: var(--danger);
    background: linear-gradient(135deg, var(--danger-bg) 0%, var(--surface) 60%);
}

.answer-header { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 14px; }
.qnum {
    background: var(--purple-100);
    color: var(--purple-800);
    padding: 4px 12px;
    border-radius: 8px;
    font-weight: 800;
    font-family: var(--font-brand);
    font-size: 13px;
    flex-shrink: 0;
}
.qtext { flex: 1; font-weight: 600; color: var(--purple-900); line-height: 1.4; }
.qpoints {
    font-weight: 800;
    color: var(--purple-700);
    font-family: var(--font-brand);
    background: var(--purple-50);
    padding: 4px 12px;
    border-radius: 8px;
    font-size: 13px;
    flex-shrink: 0;
}
.answer-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
}
@media (max-width: 720px) { .answer-body { grid-template-columns: 1fr; } }
.answer-block { display: flex; flex-direction: column; gap: 6px; }
.answer-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
}
.answer-content {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    line-height: 1.5;
}
.answer-content.given-correct {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: #065f46;
    font-weight: 500;
}
.answer-content.given-wrong {
    background: var(--danger-bg);
    border-color: var(--danger-border);
    color: #991b1b;
    font-weight: 500;
}
.answer-content.given-partial {
    background: var(--warning-bg);
    border-color: var(--warning-border);
    color: #92400e;
    font-weight: 500;
}
.answer-content.given-empty { background: #f3f4f6; border-color: #d1d5db; color: #6b7280; font-style: italic; }
.answer-content.is-correct {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: #065f46;
    font-weight: 500;
}

.events-summary {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    margin-bottom: 18px;
}
.event-summary-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 18px 20px;
    border: 1px solid var(--border);
    border-left: 5px solid var(--text-muted);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.event-summary-card.severity-info  { border-left-color: #6366f1; background: linear-gradient(135deg, rgba(99, 102, 241, 0.06), var(--surface) 60%); }
.event-summary-card.severity-low   { border-left-color: var(--success); background: linear-gradient(135deg, var(--success-bg), var(--surface) 60%); }
.event-summary-card.severity-mid   { border-left-color: var(--warning); background: linear-gradient(135deg, var(--warning-bg), var(--surface) 60%); }
.event-summary-card.severity-high  { border-left-color: var(--danger);  background: linear-gradient(135deg, var(--danger-bg), var(--surface) 60%); }
.event-sum-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
}
.event-sum-title {
    font-weight: 700;
    color: var(--purple-900);
    font-size: 15px;
    line-height: 1.3;
}
.event-sum-count {
    font-family: var(--font-brand);
    font-weight: 700;
    font-size: 13px;
    color: var(--purple-800);
    background: var(--purple-50);
    padding: 4px 12px;
    border-radius: 999px;
    flex-shrink: 0;
    border: 1px solid var(--border);
}
.event-sum-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; }
.severity-badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    align-self: flex-start;
}
.severity-badge.severity-info { background: rgba(99, 102, 241, 0.15); color: #3730a3; border: 1px solid rgba(99, 102, 241, 0.4); }
.severity-badge.severity-low  { background: var(--success-bg); color: #065f46; border: 1px solid var(--success-border); }
.severity-badge.severity-mid  { background: var(--warning-bg); color: #92400e; border: 1px solid var(--warning-border); }
.severity-badge.severity-high { background: var(--danger-bg); color: #991b1b; border: 1px solid var(--danger-border); }

.events-detailed {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    margin-top: 8px;
    box-shadow: var(--shadow-sm);
}
.events-detailed summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--purple-700);
    font-size: 14px;
    padding: 4px 0;
    user-select: none;
    list-style: none;
}
.events-detailed summary::-webkit-details-marker { display: none; }
.events-detailed summary::before { content: "▸ "; transition: transform 0.2s; display: inline-block; }
.events-detailed[open] summary::before { transform: rotate(90deg); }
.events-detailed summary:hover { color: var(--purple-900); }
.events-log { padding-top: 12px; font-size: 13px; max-height: 360px; overflow-y: auto; display: flex; flex-direction: column; gap: 4px; }
.event-row {
    padding: 8px 12px;
    border-radius: 8px;
    display: flex;
    gap: 12px;
    align-items: baseline;
    border-left: 3px solid transparent;
    background: var(--bg);
}
.event-row.severity-info { border-left-color: #6366f1; }
.event-row.severity-low  { border-left-color: var(--success); }
.event-row.severity-mid  { border-left-color: var(--warning); }
.event-row.severity-high { border-left-color: var(--danger); }
.event-time { color: var(--text-muted); font-family: ui-monospace, monospace; min-width: 70px; font-size: 12px; }
.event-type { font-weight: 600; color: var(--purple-900); flex: 1; }
.event-details { color: var(--text-muted); font-size: 12px; }

@media print {
    .topbar, .footer, .test-controls, .question-nav { display: none !important; }
}

.user-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.18);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: #fff;
    margin-left: 8px;
}
.user-role {
    background: rgba(255, 255, 255, 0.18);
    padding: 1px 8px;
    border-radius: 999px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.badge-admin { background: linear-gradient(135deg, var(--purple-700), var(--purple-500)); color: #fff; border: 0; }
.badge-teacher { background: var(--purple-100); color: var(--purple-800); border: 1px solid var(--purple-200); }

.page-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.page-header-row .page-title { margin-bottom: 0; }

.landing { padding: 0 0 60px; }

.entry-meta { margin-bottom: 12px; }
.entry-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--purple-100);
    color: var(--purple-700);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border: 1px solid var(--purple-200);
}
.entry-stats {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin: 26px 0;
    padding: 22px;
    background: var(--purple-50);
    border-radius: var(--radius);
    border: 1px solid var(--purple-100);
}
.entry-stat { display: flex; align-items: center; gap: 12px; }
.entry-stat-icon { font-size: 26px; }
.entry-stat-value { font-family: var(--font-brand); font-weight: 800; font-size: 22px; color: var(--purple-900); line-height: 1; }
.entry-stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.entry-rules {
    margin-top: 22px;
    padding: 16px 20px;
    background: var(--bg-alt);
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--text-muted);
    border: 1px solid var(--border);
}
.entry-rules strong { color: var(--purple-900); display: block; margin-bottom: 8px; font-family: var(--font-brand); }
.entry-rules ul { padding-left: 22px; }
.entry-rules li { margin-bottom: 4px; }

.editor-page { max-width: 1140px; }

.editor-topbar {
    position: sticky;
    top: 70px;
    z-index: 50;
    background: rgba(246, 243, 252, 0.92);
    backdrop-filter: blur(14px);
    margin: -12px -22px 18px;
    padding: 14px 22px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.editor-topbar .back-link { margin: 0; }
.editor-title {
    font-family: var(--font-brand);
    font-weight: 800;
    font-size: 22px;
    color: var(--purple-900);
    letter-spacing: -0.02em;
    margin: 0;
}
.editor-topbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.editor-counter {
    font-family: var(--font-brand);
    font-weight: 700;
    color: var(--purple-800);
    background: var(--purple-100);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    border: 1px solid var(--purple-200);
}

.editor { display: flex; flex-direction: column; gap: 16px; }
.editor-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.editor-card-head {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, var(--purple-50), transparent);
}
.editor-card-head h3 {
    font-family: var(--font-brand);
    font-size: 16px;
    font-weight: 700;
    color: var(--purple-900);
    letter-spacing: -0.01em;
    margin: 0;
}
.editor-card-icon { font-size: 18px; }
.editor-card-collapsible h3 { flex: 1; }
.editor-card > section, .editor-card > .ac-toggles, .editor-card > .ac-extra,
.editor-card > .settings-row, .editor-card > .field, .editor-card > #gradingFields,
.editor-card > .grading-grid, .editor-card > #questionsList,
.editor-card > .empty-questions { padding-left: 20px; padding-right: 20px; }
.editor-card > .field, .editor-card > .settings-row { padding-top: 14px; padding-bottom: 14px; }
.editor-card > .field { padding-bottom: 0; }
.editor-card > .field:last-child { padding-bottom: 14px; }

.settings-row {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    flex-wrap: wrap;
}
.settings-row .field { margin: 0; flex: 1 1 200px; min-width: 0; }
.flex-1 { flex: 1 1 140px !important; }
.flex-2 { flex: 2 1 280px !important; }
.inline-num input[type=number] { max-width: 100%; }
.toggles-inline {
    display: flex;
    flex-direction: column;
    gap: 6px;
    justify-content: center;
}
.check-mini {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-alt);
    border: 1px solid var(--border);
    cursor: pointer;
    font-size: 13px;
    user-select: none;
    transition: all 0.15s;
}
.check-mini:has(input:checked) { background: var(--purple-50); border-color: var(--purple-300); color: var(--purple-900); font-weight: 500; }
.check-mini input { width: 16px; height: 16px; accent-color: var(--purple-700); }

.ac-toggles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 8px;
    padding: 16px 20px;
}
.ac-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s;
    font-size: 13px;
    user-select: none;
}
.ac-toggle:hover { border-color: var(--purple-200); }
.ac-toggle:has(input:checked) {
    background: linear-gradient(135deg, var(--purple-100), var(--purple-50));
    border-color: var(--purple-400);
    color: var(--purple-900);
    font-weight: 500;
    box-shadow: 0 2px 6px rgba(94, 46, 200, 0.10);
}
.ac-toggle input { width: 18px; height: 18px; accent-color: var(--purple-700); flex-shrink: 0; }
.ac-toggle span { line-height: 1.3; }

.ac-extra {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    font-size: 14px;
    color: var(--text);
}
.ac-extra input[type=number] {
    width: 70px;
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    text-align: center;
    font-weight: 600;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 46px;
    height: 26px;
    cursor: pointer;
    flex-shrink: 0;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--border-strong);
    border-radius: 999px;
    transition: 0.2s;
}
.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: #fff;
    top: 3px;
    left: 3px;
    border-radius: 50%;
    transition: 0.2s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
.toggle-switch input:checked + .toggle-slider { background: linear-gradient(135deg, var(--purple-700), var(--purple-500)); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }
.req { color: var(--danger); font-weight: 700; }
.hint-inline { color: var(--text-muted); font-weight: 400; font-size: 12px; }
.field-hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; line-height: 1.4; }

.editor input[type=number],
.editor input[type=text],
.editor textarea,
.editor select {
    font-family: inherit;
    font-size: 14px;
    color: var(--text);
}

.editor input[type=number] {
    appearance: textfield;
    -moz-appearance: textfield;
}
.editor input[type=number]::-webkit-outer-spin-button,
.editor input[type=number]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.editor input[type=text],
.editor input[type=number],
.editor textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    background: #fff;
    color: var(--text);
}
.editor input[type=text]:focus,
.editor input[type=number]:focus,
.editor textarea:focus {
    outline: 0;
    border-color: var(--purple-400);
    box-shadow: 0 0 0 3px rgba(94, 46, 200, 0.15);
}
.editor .field label {
    font-size: 13px;
    font-weight: 600;
    color: var(--purple-900);
    margin-bottom: 6px;
    display: block;
}

.grading-grid { display: flex; flex-direction: column; gap: 8px; padding: 14px 20px; }
.grade-row-compact {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.grade-row-compact .grade-pill { flex-shrink: 0; width: 32px; height: 32px; border-radius: 8px; font-size: 16px; }
.grade-from, .grade-to { color: var(--text-muted); font-size: 13px; }
.grade-row-compact input[type=number] { width: 64px; padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; text-align: center; font-weight: 600; background: #fff; }
.grade-row-compact input[type=number]:focus { outline: 0; border-color: var(--purple-400); box-shadow: 0 0 0 3px rgba(94, 46, 200, 0.15); }
.grade-row-compact input[type=text] { flex: 1; min-width: 120px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; background: #fff; }
.grade-row-compact input[type=text]:focus { outline: 0; border-color: var(--purple-400); box-shadow: 0 0 0 3px rgba(94, 46, 200, 0.15); }

.questions-head-bar { display: flex; align-items: center; gap: 10px; }
.questions-head-bar h3 { flex: 1; }
.questions-list { display: flex; flex-direction: column; gap: 12px; padding: 16px 20px; }
.empty-questions {
    padding: 40px 22px;
    text-align: center;
    color: var(--text-muted);
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius);
    background: var(--bg-alt);
    font-size: 14px;
    margin: 16px 20px 20px;
}

.q-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.15s, border-color 0.15s;
}
.q-block:hover { border-color: var(--purple-200); box-shadow: var(--shadow-md); }
.q-block:focus-within { border-color: var(--purple-400); box-shadow: 0 0 0 3px rgba(94, 46, 200, 0.10); }

.q-block-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: linear-gradient(180deg, var(--purple-50), transparent);
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}
.q-num {
    font-family: var(--font-brand);
    font-weight: 800;
    color: #fff;
    font-size: 13px;
    background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
    min-width: 32px;
    height: 32px;
    padding: 0 10px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(31, 10, 78, 0.2);
    flex-shrink: 0;
}
.q-block-bar .q-type {
    flex: 1;
    min-width: 200px;
    padding: 7px 32px 7px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path fill='%235e2ec8' d='M6 8.5L1.5 4h9z'/></svg>") no-repeat right 10px center;
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
    font-weight: 500;
    font-size: 13px;
    height: 32px;
}
.q-points-inline {
    display: flex;
    align-items: center;
    gap: 6px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0 4px 0 10px;
    height: 32px;
}
.q-points-label { font-size: 11px; color: var(--text-muted); font-weight: 600; }
.q-points {
    width: 50px;
    padding: 4px 6px;
    border: 0;
    text-align: center;
    font-weight: 700;
    font-size: 13px;
    background: transparent;
}
.q-points:focus { outline: 0; }

.q-bar-actions { display: flex; gap: 4px; }
.q-action {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid var(--border);
    color: var(--purple-700);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s;
    display: grid;
    place-items: center;
    line-height: 1;
}
.q-action:hover { background: var(--purple-50); border-color: var(--purple-300); }
.q-action-danger { color: var(--danger); }
.q-action-danger:hover { background: var(--danger-bg); border-color: var(--danger-border); }

.q-text-wrap { padding: 12px 14px 0; }
.q-block .q-text {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    resize: vertical;
    min-height: 56px;
    font-size: 14px;
    background: #fff;
}
.q-block .q-text:focus { outline: 0; border-color: var(--purple-400); box-shadow: 0 0 0 3px rgba(94, 46, 200, 0.15); }
.q-fields { padding: 12px 14px 14px; }

.btn-icon-mini {
    width: 32px;
    height: 32px;
    padding: 0 !important;
    border-radius: 999px;
    font-size: 14px;
    line-height: 1;
    display: inline-grid !important;
    place-items: center;
    flex-shrink: 0;
}

.choice-wrap, .tf-wrap, .text-wrap, .matching-wrap, .ordering-wrap, .fb-wrap {
    background: var(--bg-alt);
    padding: 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.choice-wrap .hint, .tf-wrap .hint, .text-wrap .hint, .matching-wrap .hint, .ordering-wrap .hint {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.choice-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.choice-row { display: flex; gap: 8px; align-items: center; }
.choice-row .choice-text {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
    min-width: 0;
}
.choice-row .choice-text:focus { outline: 0; border-color: var(--purple-400); box-shadow: 0 0 0 3px rgba(94, 46, 200, 0.15); }
.choice-row input[type=radio], .choice-row input[type=checkbox] { width: 22px; height: 22px; accent-color: var(--success); flex-shrink: 0; cursor: pointer; }
.tf-buttons { display: flex; gap: 10px; }
.tf-opt {
    flex: 1;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    cursor: pointer;
    text-align: center;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.15s;
}
.tf-opt input { display: none; }
.tf-opt:has(input:checked) {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: #065f46;
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.18);
}
.tf-opt:hover { border-color: var(--purple-300); }

.fb-explainer {
    background: var(--surface);
    border: 1px solid var(--purple-200);
    border-left: 4px solid var(--purple-500);
    padding: 14px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--text);
    line-height: 1.6;
    margin-bottom: 14px;
}
.fb-explainer strong { color: var(--purple-800); }
.fb-explainer code {
    background: var(--purple-100);
    padding: 2px 8px;
    border-radius: 5px;
    font-family: ui-monospace, monospace;
    color: var(--purple-800);
    font-size: 13px;
    font-weight: 700;
}

.fb-preview-label { font-size: 11px; color: var(--text-muted); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; }
.fb-preview {
    background: #fff;
    border: 1px solid var(--border);
    padding: 14px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    line-height: 2;
    margin-bottom: 14px;
    color: var(--purple-900);
    min-height: 56px;
}
.fb-preview-blank {
    display: inline-block;
    min-width: 90px;
    height: 26px;
    border-bottom: 2px solid var(--purple-500);
    background: var(--purple-50);
    border-radius: 4px 4px 0 0;
    margin: 0 4px;
    position: relative;
    vertical-align: middle;
}
.fb-preview-blank::before {
    content: attr(data-num);
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--purple-700);
    color: #fff;
    font-size: 10px;
    padding: 1px 7px;
    border-radius: 999px;
    font-weight: 700;
}

.fb-blanks-list { margin-bottom: 14px; }
.fb-empty {
    padding: 16px;
    text-align: center;
    color: var(--text-muted);
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px dashed var(--border);
    font-size: 13px;
}
.fb-empty code { background: var(--purple-100); padding: 2px 8px; border-radius: 5px; color: var(--purple-800); font-weight: 700; }

.fb-row { display: flex; gap: 12px; align-items: flex-start; padding: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 8px; }
.fb-tag {
    background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
    color: #fff;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 12px;
    flex-shrink: 0;
    font-weight: 700;
    box-shadow: 0 2px 6px rgba(31, 10, 78, 0.18);
}
.fb-inputs { flex: 1; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.fb-input-wrap { display: flex; align-items: center; gap: 4px; flex: 1 1 180px; }
.fb-input-wrap .choice-text { flex: 1; }
.fb-syn-btn { font-size: 12px !important; }
.fb-insert-btn { margin-top: 4px; }
.ord-num {
    background: var(--purple-100);
    color: var(--purple-700);
    width: 28px; height: 28px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 13px;
    flex-shrink: 0;
}


.user-form-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    margin: 14px 0;
}
.inline-form { display: inline-block; }
.inline-form summary { cursor: pointer; list-style: none; }
.inline-form summary::-webkit-details-marker { display: none; }
.inline-form-body { display: flex; gap: 6px; padding: 10px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); margin-top: 6px; box-shadow: var(--shadow-sm); }
.inline-form-body input { padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; }

.share-cell { font-size: 12px; }
.share-link { display: flex; align-items: center; gap: 6px; }
.share-link code { background: var(--purple-50); padding: 4px 10px; border-radius: 6px; font-family: ui-monospace, monospace; font-size: 12px; color: var(--purple-800); border: 1px solid var(--purple-100); }
.copy-btn { padding: 4px 10px !important; height: 28px !important; }

.tests-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
}

.test-admin-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 22px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: transform 0.15s, box-shadow 0.2s;
}
.test-admin-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--purple-200); }
.test-admin-card.is-hidden { opacity: 0.7; background: var(--bg-alt); }

.tac-status { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.tac-owner-tag {
    background: var(--purple-100);
    color: var(--purple-800);
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    border: 1px solid var(--purple-200);
    font-family: ui-monospace, monospace;
}
.tac-owner-tag.tac-no-owner { background: #fef3c7; color: #92400e; border-color: #fde68a; font-family: inherit; }

.tac-title {
    font-family: var(--font-brand);
    font-size: 19px;
    font-weight: 700;
    color: var(--purple-900);
    line-height: 1.3;
    letter-spacing: -0.01em;
}
.tac-desc {
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.5;
    margin: -4px 0 0;
}

.tac-stats {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    padding: 12px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.tac-stat {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text);
}
.tac-stat strong { color: var(--purple-900); font-family: var(--font-brand); font-weight: 700; }
.tac-stat small { color: var(--text-muted); font-size: 11px; }
.tac-stat-icon { font-size: 16px; }

.tac-share { background: var(--purple-50); border: 1px solid var(--purple-100); border-radius: var(--radius); padding: 14px; }
.tac-share-label {
    font-size: 11px;
    color: var(--purple-700);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 700;
    margin-bottom: 8px;
}
.tac-share-box {
    display: flex;
    gap: 8px;
    align-items: stretch;
}
.tac-share-url {
    flex: 1;
    background: #fff;
    padding: 10px 14px;
    border-radius: 10px;
    font-family: ui-monospace, monospace;
    font-size: 12px;
    color: var(--purple-800);
    border: 1px solid var(--purple-200);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: flex;
    align-items: center;
    min-width: 0;
}
.btn-copy-big {
    height: auto !important;
    padding: 10px 16px !important;
    flex-shrink: 0;
    font-weight: 700;
    gap: 6px;
}
.btn-copy-big.copied {
    background: linear-gradient(135deg, #10b981, #059669) !important;
    box-shadow: 0 6px 18px rgba(5, 150, 105, 0.32) !important;
}
.copy-icon { font-size: 16px; }

.tac-owner { margin-top: 0; }
.tac-owner summary {
    cursor: pointer;
    list-style: none;
    background: var(--bg-alt);
    border: 1px dashed var(--border);
    padding: 8px 14px;
    border-radius: 10px;
    font-size: 13px;
    transition: background 0.15s;
}
.tac-owner summary::-webkit-details-marker { display: none; }
.tac-owner summary:hover { background: var(--purple-50); border-color: var(--purple-200); }
.tac-owner-summary { display: inline-flex; align-items: center; gap: 6px; }
.tac-owner[open] summary { background: var(--purple-50); border-style: solid; border-color: var(--purple-300); }
.tac-owner-form {
    margin-top: 8px;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.tac-owner-form select {
    flex: 1;
    min-width: 180px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 13px;
    background: #fff;
}

.tac-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
    margin-top: auto;
}
.tac-action {
    height: 38px !important;
    font-size: 13px !important;
    padding: 0 12px !important;
    justify-content: center;
}
.tac-action span { font-size: 14px; }
.tac-action form, .tac-actions form { display: contents; }
.tac-actions form .tac-action { width: 100%; }

.upload-block { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 22px; box-shadow: var(--shadow-sm); }
.upload-block summary {
    cursor: pointer;
    list-style: none;
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--purple-700);
}
.upload-block summary::-webkit-details-marker { display: none; }
.upload-block[open] summary { border-bottom: 1px solid var(--border); }
.upload-block-body { padding: 16px 18px; }

.empty-big { padding: 60px 30px; }

.device-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    border: 1px solid transparent;
    white-space: nowrap;
}
.device-mobile { background: rgba(124, 58, 237, 0.10); color: var(--purple-800); border-color: rgba(124, 58, 237, 0.25); }
.device-tablet { background: rgba(99, 102, 241, 0.10); color: #3730a3; border-color: rgba(99, 102, 241, 0.25); }
.device-desktop { background: rgba(75, 85, 99, 0.10); color: #1f2937; border-color: rgba(75, 85, 99, 0.25); }
.device-unknown { background: var(--bg-alt); color: var(--text-muted); }

.lp-hero {
    position: relative;
    overflow: hidden;
    padding: 100px 0 80px;
}
.lp-hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}
.lp-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: lp-float 12s ease-in-out infinite;
}
.lp-blob-1 { width: 480px; height: 480px; background: linear-gradient(135deg, #a684ec, #5e2ec8); top: -100px; left: -100px; }
.lp-blob-2 { width: 360px; height: 360px; background: linear-gradient(135deg, #fbbf24, #f43f5e); bottom: -80px; right: -80px; animation-delay: -4s; }
.lp-blob-3 { width: 280px; height: 280px; background: linear-gradient(135deg, #34d399, #06b6d4); top: 40%; right: 20%; animation-delay: -8s; opacity: 0.3; }
@keyframes lp-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -40px) scale(1.05); }
    66% { transform: translate(-20px, 30px) scale(0.95); }
}

.lp-hero-inner { position: relative; text-align: center; }
.lp-pill {
    display: inline-block;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid var(--purple-200);
    color: var(--purple-700);
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
}

.lp-h1 { margin-bottom: 14px; line-height: 0.9; }
.lp-h1-brand {
    font-family: var(--font-brand);
    font-weight: 800;
    font-size: clamp(100px, 16vw, 200px);
    letter-spacing: -0.09em;
    background: linear-gradient(180deg, var(--purple-950) 0%, var(--purple-700) 50%, var(--purple-400) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 16px 40px rgba(94, 46, 200, 0.35));
    display: inline-block;
}

.lp-tagline {
    font-family: var(--font-brand);
    font-size: clamp(22px, 3.5vw, 36px);
    font-weight: 600;
    color: var(--purple-900);
    margin-bottom: 22px;
    letter-spacing: -0.02em;
}
.lp-mark {
    background: linear-gradient(120deg, transparent 0%, transparent 10%, rgba(196, 181, 253, 0.6) 10%, rgba(196, 181, 253, 0.6) 90%, transparent 90%);
    padding: 0 4px;
    background-size: 100% 60%;
    background-repeat: no-repeat;
    background-position: 0 78%;
}

.lp-lead {
    color: var(--text-muted);
    font-size: clamp(15px, 1.6vw, 17px);
    line-height: 1.7;
    max-width: 640px;
    margin: 0 auto 36px;
}

.lp-cta {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 56px;
}
.lp-cta-primary {
    box-shadow: 0 12px 32px rgba(31, 10, 78, 0.35) !important;
}

.lp-stats {
    display: inline-flex;
    align-items: center;
    gap: 28px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    padding: 18px 30px;
    border-radius: 999px;
    box-shadow: var(--shadow-md);
    flex-wrap: wrap;
    justify-content: center;
}
.lp-stat { display: flex; flex-direction: column; align-items: center; line-height: 1; }
.lp-stat strong {
    font-family: var(--font-brand);
    font-weight: 800;
    font-size: 28px;
    color: var(--purple-800);
    letter-spacing: -0.04em;
}
.lp-stat span { font-size: 11px; color: var(--text-muted); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.06em; }
.lp-stat-sep { width: 1px; height: 36px; background: var(--border); }

.lp-section { padding: 80px 0; position: relative; }
.lp-section-head { text-align: center; margin-bottom: 56px; max-width: 680px; margin-left: auto; margin-right: auto; }
.lp-section-tag {
    display: inline-block;
    background: var(--purple-100);
    color: var(--purple-700);
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
    border: 1px solid var(--purple-200);
}
.lp-h2 {
    font-family: var(--font-brand);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    color: var(--purple-900);
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    line-height: 1.1;
}
.lp-section-sub { color: var(--text-muted); font-size: 16px; line-height: 1.6; }

.lp-features-section { background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.6), transparent); }
.lp-features {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.lp-feature {
    background: var(--surface);
    padding: 30px 26px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}
.lp-feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.lp-feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    font-size: 26px;
    color: #fff;
    margin-bottom: 16px;
    box-shadow: 0 8px 18px rgba(31, 10, 78, 0.18);
}
.lp-feature h3 {
    font-family: var(--font-brand);
    font-size: 19px;
    font-weight: 700;
    color: var(--purple-900);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}
.lp-feature p { color: var(--text-muted); font-size: 14px; line-height: 1.6; }

.lp-how { background: var(--bg-alt); }
.lp-steps {
    display: grid;
    gap: 22px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    counter-reset: step;
}
.lp-step {
    background: var(--surface);
    padding: 28px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    position: relative;
}
.lp-step-num {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--purple-700), var(--purple-500));
    color: #fff;
    display: grid;
    place-items: center;
    font-family: var(--font-brand);
    font-weight: 800;
    font-size: 24px;
    margin-bottom: 14px;
    box-shadow: 0 8px 18px rgba(31, 10, 78, 0.28);
}
.lp-step h3 { font-family: var(--font-brand); font-size: 18px; font-weight: 700; color: var(--purple-900); margin-bottom: 6px; }
.lp-step p { color: var(--text-muted); font-size: 14px; line-height: 1.6; }
.lp-step code { background: var(--purple-100); padding: 2px 6px; border-radius: 4px; font-family: ui-monospace, monospace; color: var(--purple-800); font-size: 12px; }

.lp-cta-section { padding: 80px 0; }
.lp-cta-card {
    background: linear-gradient(135deg, var(--purple-950) 0%, var(--purple-700) 100%);
    border-radius: var(--radius-lg);
    padding: 60px 30px;
    text-align: center;
    color: #fff;
    box-shadow: 0 30px 80px rgba(18, 6, 48, 0.4);
    position: relative;
    overflow: hidden;
}
.lp-cta-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(196, 181, 253, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(167, 132, 236, 0.3) 0%, transparent 50%);
    pointer-events: none;
}
.lp-cta-card > * { position: relative; }
.lp-cta-card h2 {
    font-family: var(--font-brand);
    font-size: clamp(26px, 3.5vw, 38px);
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.03em;
}
.lp-cta-card p { color: rgba(255, 255, 255, 0.8); margin-bottom: 28px; font-size: 16px; }
.lp-cta-card .btn-primary {
    background: linear-gradient(135deg, #fff 0%, #d6c8ff 100%) !important;
    color: var(--purple-900) !important;
    font-weight: 700;
}

.ord-text { flex: 1; line-height: 1.4; }
.ord-moves { display: flex; gap: 4px; }
.ord-move {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--purple-700);
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s;
    -webkit-tap-highlight-color: transparent;
}
.ord-move:hover:not(:disabled) { background: var(--purple-50); }
.ord-move:active:not(:disabled) { background: var(--purple-100); }
.ord-move:disabled { opacity: 0.3; cursor: not-allowed; }

@media (hover: none) and (pointer: coarse) {
    .test-shell .option-item { padding: 16px 18px; min-height: 56px; }
    .test-shell .option-item input { width: 24px; height: 24px; }
    .test-shell .btn { min-height: 44px; }
    .test-shell .ordering-item { padding: 14px 16px; cursor: default; }
    .test-shell .ord-move { width: 44px; height: 44px; font-size: 20px; }
    .test-shell .test-controls .btn { padding: 14px 22px; font-size: 15px; }
    .qnav-btn { width: 44px; height: 44px; font-size: 14px; }
    .text-answer, .matching-table select, .fill-blank-text input { font-size: 16px; }
    .question-area { padding: 22px 16px; }
    .question-text { font-size: 18px; line-height: 1.4; }
}

.owner-picker { display: inline-block; }
.owner-picker summary { cursor: pointer; list-style: none; }
.owner-picker summary::-webkit-details-marker { display: none; }
.owner-picker summary code {
    background: var(--purple-50);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    color: var(--purple-700);
    border: 1px solid var(--purple-100);
    cursor: pointer;
    transition: background 0.15s;
}
.owner-picker summary:hover code { background: var(--purple-100); }
.owner-picker[open] summary code { background: var(--purple-200); color: var(--purple-900); }
.owner-form {
    margin-top: 8px;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    box-shadow: var(--shadow-sm);
    position: absolute;
    z-index: 10;
}
.owner-form select {
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: inherit;
    font-size: 13px;
    background: #fff;
    min-width: 200px;
}

.live-list {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.live-line {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) minmax(280px, 2fr) minmax(180px, 1fr);
    gap: 14px;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}
.live-line:last-child {
    border-bottom: 0;
}
.live-line.is-stale {
    opacity: 0.75;
}
.live-line-head {
    background: var(--purple-50);
    font-size: 12px;
    font-weight: 700;
    color: var(--purple-700);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.live-col {
    min-width: 0;
}
.live-col-who {
    font-weight: 700;
    color: var(--purple-900);
}
.live-col-test {
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.live-col-device {
    display: flex;
    justify-content: flex-start;
}

@media (max-width: 900px) {
    .live-line {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    .live-line-head {
        display: none;
    }
    .live-col-test {
        white-space: normal;
    }
}

@media (max-width: 720px) {
    .q-block-head {
        grid-template-columns: auto 1fr;
        gap: 10px;
    }
    .q-block-head .q-points-wrap { grid-column: 1 / 2; width: auto; }
    .q-block-head .q-block-actions { grid-column: 2 / 3; justify-content: flex-end; }
    .q-block-head .q-type-wrap { grid-column: 1 / 3; }
}

@media (max-width: 640px) {
    .hero-card { padding: 28px 22px; }
    .hero-card h1 { font-size: 30px; }
    .question-area { padding: 24px 18px; }
    .question-text { font-size: 18px; }
    .filter-bar { padding: 12px; }
    .filter-bar select { min-width: 0; flex: 1 1 100%; }
    .data-table th, .data-table td { padding: 10px 8px; font-size: 13px; }
    .result-grade-big { font-size: 80px; }
    .page-title { font-size: 26px; }
    .landing-brand { font-size: 80px; }
    .landing-sub { font-size: 22px; }
    .landing-lead { font-size: 15px; }
    .landing-h2 { font-size: 26px; }
    .user-chip { display: none; }
    .settings-row { flex-direction: column; }
    .editor-topbar { position: relative; top: auto; }
    .editor-topbar-right { width: 100%; justify-content: flex-end; }
}

/* Visual refresh */
:root {
    --surface-soft: #faf7ff;
    --focus-ring: 0 0 0 4px rgba(94, 46, 200, 0.16);
    --shadow-sm: 0 8px 20px rgba(31, 10, 78, 0.08);
    --shadow-md: 0 16px 36px rgba(31, 10, 78, 0.14);
    --shadow-lg: 0 28px 72px rgba(18, 6, 48, 0.22);
    --main-pad-top: 38px;
    --main-pad-bottom: 66px;
}

html {
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
}

::selection {
    background: rgba(124, 58, 237, 0.22);
    color: var(--purple-950);
}

body {
    background:
        radial-gradient(circle at 12% -10%, rgba(124, 58, 237, 0.20) 0%, rgba(124, 58, 237, 0) 42%),
        radial-gradient(circle at 92% 120%, rgba(17, 24, 39, 0.14) 0%, rgba(17, 24, 39, 0) 46%),
        linear-gradient(180deg, #f7f3fc 0%, #f3edf9 100%);
}

.main { padding: var(--main-pad-top) 0 var(--main-pad-bottom); }

.topbar {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
}

.topbar-inner {
    min-height: 72px;
    height: auto;
    gap: 12px;
    padding: 10px 0;
}

.brand { font-size: 34px; }

.topnav { gap: 6px; }

.topnav a,
.btn,
.test-card,
.option-item,
.qnav-btn,
.lp-feature,
.lp-step {
    transition: transform 0.16s ease, box-shadow 0.22s ease, border-color 0.22s ease, background 0.22s ease, color 0.22s ease;
}

.topnav a:focus-visible,
.btn:focus-visible,
.test-card:focus-within,
.qnav-btn:focus-visible,
.field input:focus,
.field select:focus,
.field textarea:focus,
.text-answer:focus,
.fill-blank-text input:focus,
.matching-table select:focus,
.filter-bar select:focus,
.upload-form input[type=file]:focus,
.editor input[type=text]:focus,
.editor input[type=number]:focus,
.editor textarea:focus,
.editor select:focus {
    outline: none;
    box-shadow: var(--focus-ring);
}

.btn {
    border-radius: 12px;
    font-weight: 650;
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn-primary:hover,
.btn-success:hover {
    transform: translateY(-1px);
}

.card,
.hero-card,
.login-card,
.stat-card,
.table-wrap,
.filter-bar,
.test-admin-card,
.result-card,
.editor-card,
.upload-block {
    border-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.page-title {
    letter-spacing: -0.03em;
    line-height: 1.05;
}

.table-wrap { overflow: auto; }

.data-table tr:nth-child(even) td {
    background: rgba(243, 239, 253, 0.45);
}

.data-table tr:hover td {
    background: rgba(227, 218, 250, 0.55);
}

.data-table th {
    position: sticky;
    top: 0;
    z-index: 2;
}

.test-header {
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 16px;
}

.question-area {
    border-radius: 18px;
    padding: clamp(22px, 4vw, 34px);
}

.test-controls .btn { min-width: 148px; }

.entry-stats {
    background: linear-gradient(180deg, rgba(243, 239, 253, 0.92), rgba(243, 239, 253, 0.72));
}

.entry-rules {
    background: var(--surface-soft);
}

.editor-topbar {
    top: 76px;
    border-radius: 0 0 14px 14px;
}

.live-grid {
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
}

.live-card {
    border-left-width: 5px;
}

.footer { margin-top: 46px; }

.footer-tg { white-space: nowrap; }

/* Test page compact layout */
.main .test-shell {
    min-height: 0;
}

.main .test-shell .container {
    max-width: 1440px;
}

.main .test-shell .test-header {
    margin-bottom: 10px;
    padding: 12px 0;
}

.main .test-shell .test-title {
    font-size: clamp(16px, 1.45vw, 28px);
    line-height: 1.2;
}

.main .test-shell .test-student {
    font-size: 14px;
}

.main .test-shell .progress-bar {
    height: 7px;
    margin-bottom: 12px;
}

.main .test-shell .question-area {
    min-height: 0;
    margin-bottom: 12px;
    padding: clamp(16px, 1.55vw, 26px);
}

.main .test-shell .question-text {
    font-size: clamp(19px, 1.3vw, 27px);
    margin-bottom: 14px;
}

.main .test-shell .option-list {
    gap: 8px;
}

.main .test-shell .option-item {
    padding: 11px 14px;
    min-height: 52px;
    font-size: 17px;
}

.main .test-shell .test-controls {
    margin-bottom: 10px;
    gap: 10px;
}

.main .test-shell .test-controls .btn {
    min-width: 190px;
    height: 46px;
    font-size: 16px;
    font-weight: 650;
}

.main .test-shell .question-nav {
    padding: 10px;
    gap: 5px;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
    justify-content: flex-start;
}

.main .test-shell .qnav-btn {
    flex: 0 0 42px;
    width: 42px;
    height: 42px;
}

@supports selector(body:has(.test-shell)) {
    body:has(.test-shell) .main {
        padding-top: 0;
        padding-bottom: 14px;
    }
    body:has(.test-shell) .footer {
        display: none;
    }
}

@media (max-width: 980px) {
    .container { padding: 0 16px; }
    .user-chip { display: none; }
    :root {
        --main-pad-top: 30px;
        --main-pad-bottom: 54px;
    }
    .topbar-inner {
        align-items: flex-start;
        padding-top: 12px;
        padding-bottom: 12px;
    }
    .topnav {
        width: 100%;
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 4px;
        scrollbar-width: thin;
    }
    .topnav a {
        flex: 0 0 auto;
        padding: 8px 14px;
    }
    .editor-topbar {
        position: relative;
        top: auto;
        margin: 0 0 16px;
        border: 1px solid var(--border);
        border-radius: var(--radius);
    }
}

@media (max-width: 760px) {
    :root {
        --main-pad-top: 24px;
        --main-pad-bottom: 42px;
    }
    .brand { font-size: 30px; }
    .hero-card,
    .login-card,
    .result-card,
    .editor-card,
    .test-admin-card { border-radius: 16px; }
    .test-controls {
        flex-direction: column-reverse;
        gap: 8px;
    }
    .test-controls .btn { width: 100%; min-width: 0; }
    .page-header-row .btn.btn-lg { width: 100%; justify-content: center; }
    .filter-actions { width: 100%; flex-direction: column; align-items: stretch; }
    .filter-actions .btn,
    .filter-actions form,
    .filter-actions form .btn { width: 100%; }
    .result-grid { grid-template-columns: 1fr; }
    .result-stat { border-right: 0; }
    .lp-hero { padding: 78px 0 56px; }
    .lp-section { padding: 58px 0; }
    .lp-stats {
        border-radius: 20px;
        gap: 14px;
        padding: 16px 18px;
    }
    .lp-stat-sep { display: none; }

    .main .test-shell .option-item {
        font-size: 16px;
        min-height: 48px;
        padding: 10px 12px;
    }
    .main .test-shell .question-text {
        font-size: 20px;
    }
    .main .test-shell .test-controls .btn {
        min-width: 0;
        width: 100%;
        font-size: 15px;
        height: 44px;
    }
    .main .test-shell .qnav-btn {
        flex: 0 0 38px;
        width: 38px;
        height: 38px;
    }
}
/* === UX polish: calm, Apple/Google-like density === */
.test-shell #progressPill,
.test-shell .progress-bar {
    display: none !important;
}

.test-shell[data-linear-mode="1"] .question-nav {
    display: none !important;
}

.test-shell[data-linear-mode="0"] .question-nav {
    display: flex !important;
}

.main > .test-shell {
    margin-top: calc(-1 * var(--main-pad-top));
}

.test-shell .test-header {
    background: linear-gradient(135deg, #26105e 0%, #3b1a83 60%, #4b22a0 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 10px 28px rgba(20, 8, 53, 0.22);
}

.test-shell .test-header-inner {
    min-height: 132px;
    align-items: center;
}

.test-shell .test-stats {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.test-shell .question-area {
    border: 1px solid #e7def6;
    box-shadow: 0 8px 22px rgba(35, 16, 80, 0.08);
}

.test-shell .test-controls {
    margin-top: 4px;
    margin-bottom: 0;
}

@supports selector(body:has(.test-shell)) {
    body:has(.test-shell) #progressPill,
    body:has(.test-shell) .progress-bar {
        display: none !important;
    }

    body:has(.test-shell[data-linear-mode="1"]) .question-nav {
        display: none !important;
    }

    body:has(.test-shell[data-linear-mode="0"]) .question-nav {
        display: flex !important;
    }

    body:has(.test-shell) .main {
        padding-top: 0;
        padding-bottom: 20px;
    }

    body:has(.test-shell) .test-header {
        background: linear-gradient(135deg, #26105e 0%, #3b1a83 60%, #4b22a0 100%);
        border-bottom: 1px solid rgba(255, 255, 255, 0.16);
        box-shadow: 0 10px 28px rgba(20, 8, 53, 0.22);
    }

    body:has(.test-shell) .test-header-inner {
        min-height: 132px;
        align-items: center;
    }

    body:has(.test-shell) .test-stats {
        margin-left: auto;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    body:has(.test-shell) .question-area {
        border: 1px solid #e7def6;
        box-shadow: 0 8px 22px rgba(35, 16, 80, 0.08);
    }

    body:has(.test-shell) .test-controls {
        margin-top: 4px;
        margin-bottom: 0;
    }
}

/* live table: post-line, same vibe as results */
.live-page .table-wrap {
    border: 1px solid #e4daf4;
    border-radius: 14px;
    overflow: hidden;
}

.live-table {
    table-layout: fixed;
}

.live-table th:nth-child(1),
.live-table td:nth-child(1) {
    width: 23%;
}

.live-table th:nth-child(2),
.live-table td:nth-child(2) {
    width: 35%;
}

.live-table th:nth-child(3),
.live-table td:nth-child(3) {
    width: 17%;
}

.live-table th:nth-child(4),
.live-table td:nth-child(4) {
    width: 17%;
}

.live-table th:nth-child(5),
.live-table td:nth-child(5) {
    width: 8%;
    text-align: right;
}

.live-table td {
    background: #fff;
}

.live-table .live-user-cell strong {
    font-weight: 700;
    color: #220d52;
}

.live-table .live-test-cell {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.live-table tr.live-row-stale td {
    opacity: 0.62;
}

.live-table .live-ttl {
    font-weight: 700;
    color: #1e1456;
}

.live-table .live-ttl.live-ttl-urgent {
    color: #b91c1c;
}

.live-page .live-hide-btn {
    min-width: 92px;
}

@media (max-width: 900px) {
    .live-table {
        min-width: 860px;
    }
}