/* Mobile-first styl (6.1): písmo formulářů 16 px, dotykové plochy alespoň 44 px, bez vodorovného rolování. */
:root {
    --bg: #ffffff;
    --fg: #1d2733;
    --muted: #5b6776;
    --accent: #1f5f3a;
    --accent-fg: #ffffff;
    --border: #c9d1d9;
    --error-bg: #fdecea;
    --ok-bg: #e8f5ec;
    --info-bg: #e8f0fa;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14181d;
        --fg: #e6ebf0;
        --muted: #9aa7b5;
        --accent: #5cc08a;
        --accent-fg: #0d1a12;
        --border: #3a4552;
        --error-bg: #3a1f1c;
        --ok-bg: #1b3326;
        --info-bg: #1c2a3d;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.topbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 16px;
    padding: 8px 16px;
    border-bottom: 1px solid var(--border);
}

.brand { font-weight: 700; color: var(--accent); text-decoration: none; }
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: 0 16px; }
.nav a, .nav .link { display: inline-flex; align-items: center; min-height: 44px; }

.content { max-width: 720px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: 0.5em 0; }
a { color: var(--accent); }

.form { display: grid; gap: 8px; max-width: 420px; margin-bottom: 24px; }
label { font-weight: 600; }
.check { display: flex; align-items: center; gap: 8px; min-height: 44px; }
input, select, button { font: inherit; min-height: 44px; }
input[type="text"], input[type="email"], input[type="password"], select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--fg);
}
input[type="checkbox"] { width: 24px; height: 24px; min-height: 24px; }

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 20px;
    border: 0;
    border-radius: 6px;
    background: var(--accent);
    color: var(--accent-fg);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}
.button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
button.link { background: none; border: 0; color: var(--accent); text-decoration: underline; cursor: pointer; }
form.inline { display: inline; }

.hint { margin: 0; color: var(--muted); font-size: 0.875rem; }
.flash { padding: 12px 16px; border-radius: 6px; background: var(--info-bg); }
.flash-error { background: var(--error-bg); }
.flash-ok { background: var(--ok-bg); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
.secret code { display: inline-block; padding: 12px 16px; font-size: 1.25rem; border: 1px dashed var(--border); }

h2 { font-size: 1.25rem; margin: 1.25em 0 0.5em; }
h3 { font-size: 1.05rem; margin: 1em 0 0.5em; }
.card { border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; margin-bottom: 12px; }
.card .form { margin-bottom: 8px; }

.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0 0 16px; }
.actions form { margin: 0; }
.wrap { white-space: normal; min-width: 14em; }
.pager { display: flex; gap: 16px; align-items: center; margin: 16px 0; }
.filters { max-width: none; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); align-items: end; }
.filters label { grid-column: auto; }
textarea { width: 100%; padding: 8px 12px; font: inherit; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--fg); }
input[type="search"], input[type="file"] { width: 100%; min-height: 44px; }
input[type="search"] { padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--fg); }
.field-error { margin: 0; color: #b3261e; font-size: 0.9rem; }
@media (prefers-color-scheme: dark) { .field-error { color: #ffb4ab; } }
fieldset.options { border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; }
.option-row { display: grid; gap: 4px; margin-bottom: 8px; }
.thumb { max-width: 100%; height: auto; }

/* Layout editoru: formulář a náhled vedle sebe na širokém displeji, pod sebou na mobilu. */
.editor { display: grid; gap: 24px; }
@media (min-width: 960px) { .content.wide, .content:has(.editor) { max-width: 1100px; } .editor { grid-template-columns: minmax(0, 1fr) 400px; align-items: start; } .preview-pane { position: sticky; top: 8px; } }

/* Náhled otázky jako na mobilu (360 px), stejné třídy používá JS i server (_preview.twig). */
.phone { width: 100%; max-width: 360px; margin: 0 auto 8px; padding: 12px 16px; border: 2px solid var(--border); border-radius: 20px; background: var(--bg); overflow-wrap: anywhere; }
.pv-meta, .pv-hint { margin: 0 0 8px; color: var(--muted); font-size: 0.85rem; }
.pv-stem { margin-bottom: 12px; white-space: normal; }
.pv-image img, .pv-image-img { display: block; max-width: 100%; height: auto; margin-bottom: 12px; }
.pv-options { list-style: none; margin: 0; padding: 0; }
.pv-option { display: flex; align-items: center; gap: 12px; min-height: 44px; padding: 8px 12px; margin-bottom: 8px; border: 1px solid var(--border); border-radius: 8px; }
.pv-mark { flex: none; width: 20px; height: 20px; border: 2px solid var(--muted); border-radius: 50%; }
.pv-mark.square { border-radius: 4px; }
.pv-explanation { margin-top: 12px; font-size: 0.9rem; }

/* Vzorce (F-QST-04): široký vzorec roluje jen ve svém rámečku, chybný se ukáže jako zdrojový text. */
.math-block { display: block; max-width: 100%; overflow-x: auto; overflow-y: hidden; margin: 8px 0; }
.math-error { font-family: ui-monospace, monospace; color: #b3261e; }
@media (prefers-color-scheme: dark) { .math-error { color: #ffb4ab; } }

.badge { display: inline-block; padding: 2px 10px; border: 1px solid var(--border); border-radius: 999px; font-size: 0.8rem; font-weight: 600; vertical-align: middle; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0 0 16px; }
.facts dt { font-weight: 600; }
.facts dd { margin: 0; }

/* Lístky (F-TOK-02): A4, 8 kusů na stránku (2 × 4) k rozstříhání. */
.sheet { display: grid; grid-template-columns: 1fr 1fr; grid-auto-rows: 1fr; gap: 0; margin: 0 auto 16px; max-width: 210mm; }
.ticket { display: flex; gap: 8px; align-items: center; padding: 6mm; border: 1px dashed #888; break-inside: avoid; }
.ticket-qr { flex: none; width: 34mm; }
.ticket-qr svg { display: block; width: 100%; height: auto; }
.ticket-info { font-size: 9pt; line-height: 1.3; }
.ticket-info p { margin: 0 0 3px; }
.ticket-test { font-weight: 700; }
.ticket-code { font-family: ui-monospace, monospace; font-size: 10pt; }
.big-ticket { text-align: center; }
.big-qr { width: min(88vw, 70vh); margin: 0 auto; background: #fff; padding: 8px; }
.big-qr svg { display: block; width: 100%; height: auto; }
.big-ticket .ticket-code { font-size: 1.6rem; }

@media print {
    @page { size: A4; margin: 0; }
    .topbar, .no-print, .flash { display: none !important; }
    body { background: #fff; color: #000; }
    .content { max-width: none; padding: 0; }
    .sheet { width: 210mm; height: 297mm; margin: 0; page-break-after: always; max-width: none; }
    .sheet:last-of-type { page-break-after: auto; }
    .ticket { padding: 5mm; border-color: #bbb; }
}

/* Živý přehled (F-MON): neutrální vzhled, pozornost jen u odmítnutého převzetí a ztráty spojení. */
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0 0 12px; }
.chip { padding: 6px 14px; border: 1px solid var(--border); border-radius: 999px; font-weight: 600; }
.chip-off { opacity: 0.5; }
.live-row { border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; margin-bottom: 10px; }
.live-help { border: 2px solid var(--accent); }
.live-off { opacity: 0.8; }
.live-head { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; }
.live-timer { font: 700 1.1rem ui-monospace, monospace; font-variant-numeric: tabular-nums; }
.badge-help { border-color: var(--accent); color: var(--accent); }
.live-grid { display: none; gap: 2px; flex-wrap: wrap; margin: 6px 0; }
.cell { width: 12px; height: 12px; border-radius: 2px; background: var(--border); }
.cell-2 { background: var(--accent); }
.cell-1 { background: var(--bg); outline: 2px solid var(--accent); }
@media (min-width: 1024px) { .live-grid { display: flex; } }
.row-annulled td { text-decoration: line-through; opacity: 0.7; }
.row-annulled td.actions { text-decoration: none; }
dialog { max-width: 420px; width: calc(100% - 32px); border: 1px solid var(--border); border-radius: 10px; background: var(--bg); color: var(--fg); }
dialog textarea { width: 100%; }
.banner { padding: 10px 16px; background: var(--error-bg); text-align: center; }