/* ==========================================================================
   Štátnice — pokojná, sústredená, papierová appka
   ========================================================================== */

:root {
  --paper: #f5ecdc;
  --paper-2: #efe4cf;
  --paper-line: #e3d6bc;
  --ink: #2a2622;
  --ink-soft: #57504a;
  --ink-mute: #8a8278;
  --accent: #b1442b;        /* terakota */
  --accent-soft: #d97757;
  --good: #4a7c4e;
  --good-bg: #d8e8d2;
  --bad: #b13a3a;
  --bad-bg: #f0d4cf;
  --shadow: 0 1px 0 rgba(60,40,20,0.04), 0 8px 24px -12px rgba(60,40,20,0.18);
  --radius: 14px;
  --radius-sm: 10px;
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 80% -10%, #ece1c8 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 110%, #ece1c8 0%, transparent 55%),
    var(--paper);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

#app {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 18px 80px;
}

/* ---------- typografia ---------- */
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 12px;
}
h1 { font-size: 34px; line-height: 1.1; }
h2 { font-size: 24px; line-height: 1.2; }
h3 { font-size: 18px; line-height: 1.3; }
p  { margin: 0 0 12px; }
small, .muted { color: var(--ink-mute); }

a { color: var(--accent); }

/* ---------- karty a sekcie ---------- */
.card {
  background: rgba(255, 252, 244, 0.7);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
  backdrop-filter: blur(4px);
}

.header {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 10px; margin-bottom: 14px; flex-wrap: wrap;
}
.header .kicker {
  font-family: var(--serif);
  font-style: italic;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.lead { color: var(--ink-soft); font-size: 16px; }

/* ---------- horný panel s režimami ---------- */
.tabbar {
  display: flex; gap: 6px;
  background: var(--paper-2);
  padding: 5px;
  border: 1px solid var(--paper-line);
  border-radius: 999px;
  margin-bottom: 22px;
  width: fit-content;
}
.tabbar button {
  border: 0; background: transparent;
  font: 500 15px/1 var(--sans);
  color: var(--ink-soft);
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.tabbar button:hover { color: var(--ink); }
.tabbar button.active {
  background: var(--ink);
  color: var(--paper);
}

/* ---------- form prvky ---------- */
label.field {
  display: block;
  margin-bottom: 14px;
}
label.field .lbl {
  display: block;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  margin-bottom: 8px;
}
select, input[type="text"] {
  width: 100%;
  font: 500 16px/1.3 var(--sans);
  color: var(--ink);
  background: #fffaee;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14'><path fill='none' stroke='%238a8278' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' d='M3 5l4 4 4-4'/></svg>");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
}
select:focus, input:focus {
  outline: 2px solid var(--accent-soft);
  outline-offset: 1px;
}

.chip-row {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.chip {
  font: 500 14px/1 var(--sans);
  color: var(--ink-soft);
  background: #fffaee;
  border: 1px solid var(--paper-line);
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}
.chip:hover { color: var(--ink); border-color: var(--ink-mute); }
.chip.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* ---------- tlačidlá ---------- */
button.btn, .btn {
  font: 600 16px/1 var(--sans);
  color: var(--paper);
  background: var(--accent);
  border: 0;
  border-radius: var(--radius-sm);
  padding: 16px 22px;
  min-height: 52px;
  cursor: pointer;
  transition: transform 0.05s, background 0.15s, box-shadow 0.15s;
  box-shadow: 0 1px 0 rgba(0,0,0,0.04), 0 8px 16px -8px rgba(177,68,43,0.45);
}
button.btn:hover { background: #9c391f; }
button.btn:active { transform: translateY(1px); }
button.btn.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--paper-line);
  box-shadow: none;
}
button.btn.secondary:hover { background: var(--paper-2); }
button.btn.ghost {
  background: transparent;
  color: var(--accent);
  box-shadow: none;
}
button.btn.ghost:hover { background: rgba(177,68,43,0.07); }
button.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-row .btn { flex: 1 1 140px; }

/* ---------- kvíz ---------- */
.progress {
  height: 6px;
  background: var(--paper-2);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 18px;
}
.progress > div {
  height: 100%;
  background: var(--accent);
  transition: width 0.3s ease;
}

.scoreline {
  display: flex; gap: 16px; align-items: baseline;
  font-size: 14px; color: var(--ink-mute);
  margin-bottom: 16px;
}
.scoreline .num { font-family: var(--serif); font-size: 18px; color: var(--ink); }
.scoreline .ok { color: var(--good); }
.scoreline .err { color: var(--bad); }

.question {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.35;
  margin: 6px 0 22px;
  color: var(--ink);
}
.qmeta {
  font-size: 13px;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.options {
  display: flex; flex-direction: column; gap: 10px;
}
.option {
  display: flex; align-items: flex-start; gap: 12px;
  text-align: left;
  background: #fffaee;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font: 500 16px/1.4 var(--sans);
  color: var(--ink);
  cursor: pointer;
  min-height: 60px;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}
.option:hover:not([disabled]) {
  background: #fff6e0;
  border-color: var(--ink-mute);
}
.option .key {
  font: 600 13px/1 var(--sans);
  color: var(--ink-mute);
  background: var(--paper-2);
  border-radius: 6px;
  padding: 6px 8px;
  min-width: 24px;
  text-align: center;
  flex-shrink: 0;
}
.option.correct {
  background: var(--good-bg);
  border-color: var(--good);
}
.option.correct .key { background: var(--good); color: white; }
.option.wrong {
  background: var(--bad-bg);
  border-color: var(--bad);
}
.option.wrong .key { background: var(--bad); color: white; }
.option[disabled] { cursor: default; }

.feedback {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: var(--paper-2);
  border-left: 3px solid var(--accent);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.feedback .why { color: var(--ink); font-weight: 500; display: block; margin-bottom: 4px; }
.feedback .prierez {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  background: rgba(177,68,43,0.08);
  padding: 3px 8px;
  border-radius: 4px;
  margin-top: 8px;
}

/* ---------- výsledok ---------- */
.result-pct {
  font-family: var(--serif);
  font-size: 72px;
  line-height: 1;
  color: var(--accent);
  margin: 6px 0 6px;
}
.result-summary { color: var(--ink-soft); margin-bottom: 22px; }

.breakdown { display: flex; flex-direction: column; gap: 8px; }
.breakdown .row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed var(--paper-line);
}
.breakdown .row:last-child { border-bottom: 0; }
.breakdown .name { font-size: 14px; color: var(--ink); }
.breakdown .bar {
  width: 100%; height: 6px;
  background: var(--paper-2); border-radius: 999px; overflow: hidden;
  margin-top: 4px;
}
.breakdown .bar > div { height: 100%; background: var(--good); }
.breakdown .pct { font-family: var(--serif); font-size: 16px; color: var(--ink); }

/* ---------- flashcards ---------- */
.fc {
  background: #fffaee;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 26px 22px;
  min-height: 380px;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow);
  margin-bottom: 14px;
}
.fc .qnum {
  font-family: var(--serif);
  font-style: italic;
  color: var(--accent);
  font-size: 16px;
  margin-bottom: 8px;
}
.fc .title {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.3;
  color: var(--ink);
  margin-bottom: 18px;
}
.fc .body {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  white-space: pre-wrap;
  flex: 1;
}
.fc .body b, .fc .body strong { color: var(--ink); font-weight: 600; }
.fc .body em { color: var(--accent); font-style: normal; font-weight: 600; }
.fc-controls { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.fc-controls .nav { display: flex; gap: 8px; flex: 1; }
.fc-controls .mark { display: flex; gap: 6px; }
.fc-mark {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--paper-line);
  background: #fffaee;
  font-size: 18px;
  cursor: pointer;
}
.fc-mark.viem.active { background: var(--good-bg); border-color: var(--good); }
.fc-mark.ciast.active { background: #fff1c8; border-color: #d6a72c; }
.fc-mark.neviem.active { background: var(--bad-bg); border-color: var(--bad); }

/* ---------- pomocné ---------- */
.row-split { display: flex; gap: 12px; flex-wrap: wrap; }
.row-split > * { flex: 1 1 200px; }

hr.sep {
  border: 0;
  border-top: 1px solid var(--paper-line);
  margin: 20px 0;
}

.center { text-align: center; }
.hidden { display: none !important; }

/* ---------- streak ---------- */
.streak {
  display: flex; align-items: baseline; gap: 8px;
  background: rgba(177,68,43,0.08);
  border: 1px solid rgba(177,68,43,0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin: 6px 0 16px;
  font-size: 14px;
  color: var(--ink-soft);
}
.streak .streak-num { font-family: var(--serif); font-size: 22px; color: var(--accent); font-weight: 600; }

/* ---------- flashcard toolbar a tag ---------- */
.fc-toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.mark-tag {
  font: 600 11px/1 var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 8px;
  border-radius: 4px;
  margin-left: 8px;
}
.mark-tag.mark-viem { background: var(--good-bg); color: var(--good); }
.mark-tag.mark-ciast { background: #fff1c8; color: #8a6c1c; }
.mark-tag.mark-neviem { background: var(--bad-bg); color: var(--bad); }

.fc-mark.sm {
  width: 34px; height: 34px;
  font-size: 14px;
}

/* ---------- prehľad ---------- */
.overview-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}
.stat-box {
  background: #fffaee;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  padding: 12px 8px;
  text-align: center;
}
.stat-num {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.1;
  color: var(--ink);
  font-weight: 600;
}
.stat-num.ok  { color: var(--good); }
.stat-num.warn{ color: #8a6c1c; }
.stat-num.err { color: var(--bad); }
.stat-lbl {
  font-size: 11px;
  color: var(--ink-mute);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.prehled-sec {
  border-top: 1px solid var(--paper-line);
  padding: 14px 0 4px;
}
.prehled-sec:first-of-type { border-top: 0; }
.prehled-sec-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}
.prehled-sec-title {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.2;
}
.prehled-sec-sub {
  font-size: 12px;
  color: var(--ink-mute);
  margin-top: 2px;
}
.prehled-sec-right {
  display: flex; align-items: center; gap: 10px;
}
.prehled-sec-right .pct {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--accent);
  font-weight: 600;
}
.prehled-sec-right .caret { color: var(--ink-mute); }
.prehled-sec > .bar {
  height: 4px; background: var(--paper-2);
  border-radius: 999px; overflow: hidden;
  margin: 10px 0 6px;
}
.prehled-sec > .bar > div {
  height: 100%; background: var(--good); transition: width 0.3s;
}
.prehled-list { display: flex; flex-direction: column; gap: 6px; margin: 8px 0 6px; }
.prehled-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  background: #fffaee;
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
}
.prehled-row-main {
  flex: 1;
  display: flex; gap: 12px; align-items: flex-start;
  cursor: pointer;
}
.prehled-row-num {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--accent);
  background: rgba(177,68,43,0.08);
  padding: 4px 8px;
  border-radius: 5px;
  font-weight: 600;
  flex-shrink: 0;
  min-width: 36px;
  text-align: center;
}
.prehled-row-title {
  font-size: 14.5px;
  color: var(--ink);
  line-height: 1.35;
}
.prehled-row-stats {
  font-size: 11px;
  color: var(--ink-mute);
  margin-top: 3px;
  letter-spacing: 0.02em;
}
.prehled-row-marks {
  display: flex; gap: 4px;
  flex-shrink: 0;
}

/* ---------- responzív ---------- */
@media (max-width: 600px) {
  .overview-stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 480px) {
  body { font-size: 16px; }
  #app { padding: 14px 12px 80px; }
  h1 { font-size: 28px; }
  .question { font-size: 19px; }
  .card { padding: 18px; }
  .result-pct { font-size: 56px; }
  .option { padding: 14px 14px; }
  .tabbar button { padding: 10px 14px; font-size: 14px; }
  .stat-num { font-size: 19px; }
  .prehled-row { padding: 10px; }
  .prehled-row-title { font-size: 13.5px; }
}