:root {
  --bg: #f5f3ef;
  --surface: #ffffff;
  --surface-2: #efece6;
  --text: #19191d;
  --muted: #55555f;
  --border: #d6d1c9;
  --accent: #7d1d2a;
  --accent-bg: #7d1d2a;
  --accent-ink: #ffffff;
  --accent-soft: #f6e6e8;
  --ok: #146c36;
  --ok-bg: #e2f3e7;
  --bad: #b3261e;
  --bad-bg: #fce7e5;
  --star: #a26a00;
  --focus: #2457c5;
  --radius: 14px;
  --shadow: 0 1px 2px rgb(0 0 0 / 6%), 0 4px 14px rgb(0 0 0 / 5%);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111114;
    --surface: #1c1c21;
    --surface-2: #26262c;
    --text: #f1f1f4;
    --muted: #a9a9b4;
    --border: #36363e;
    --accent: #f0919c;
    --accent-bg: #b3394a;
    --accent-ink: #ffffff;
    --accent-soft: #3a1d22;
    --ok: #5ad48a;
    --ok-bg: #12301e;
    --bad: #ff8a80;
    --bad-bg: #3b1715;
    --star: #f2c14e;
    --focus: #8ab4ff;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html {
  font-size: 112.5%; /* 18px */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; touch-action: manipulation; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.screen {
  max-width: 680px;
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding:
    calc(env(safe-area-inset-top) + 12px)
    calc(env(safe-area-inset-right) + 16px)
    calc(env(safe-area-inset-bottom) + 16px)
    calc(env(safe-area-inset-left) + 16px);
}

.loading { padding: 40vh 16px 0; text-align: center; color: var(--muted); }

/* ---------- Top bar ---------- */
.bar {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  margin-bottom: 8px;
}
.bar .title { flex: 1; font-weight: 650; font-size: 1.05rem; }
.bar .status { flex: 1; font-size: 0.85rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.bar .status b { color: var(--text); }
.icon-btn {
  width: 44px; height: 44px;
  display: inline-grid; place-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  font-size: 1.15rem;
  flex: none;
}
.timer {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 10px;
  background: var(--surface-2);
}
.timer.low { background: var(--bad-bg); color: var(--bad); }

.progress { height: 6px; border-radius: 99px; background: var(--surface-2); overflow: hidden; margin-bottom: 16px; }
.progress > div { height: 100%; background: var(--accent-bg); transition: width .25s ease; }

/* ---------- Home ---------- */
.hero { margin: 8px 0 18px; }
.hero h1 { margin: 0; font-size: 2rem; letter-spacing: -0.02em; }
.hero p { margin: 4px 0 0; color: var(--muted); font-size: 0.9rem; }

.summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}
.summary div {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
}
.summary b { display: block; font-size: 1.3rem; font-variant-numeric: tabular-nums; }
.summary span { font-size: 0.78rem; color: var(--muted); }

.modes { display: grid; gap: 10px; }
.mode {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  text-align: left;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.mode .ico {
  width: 46px; height: 46px; flex: none;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.3rem;
}
.mode strong { display: block; font-size: 1.1rem; }
.mode small { display: block; color: var(--muted); font-size: 0.85rem; margin-top: 2px; }
.mode.primary { background: var(--accent-bg); border-color: var(--accent-bg); color: var(--accent-ink); }
.mode.primary small { color: inherit; opacity: .85; }
.mode.primary .ico { background: rgb(255 255 255 / 18%); color: inherit; }
.mode:disabled { opacity: .55; cursor: default; }

.section-title {
  margin: 22px 0 8px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.link-btn { background: none; border: 0; color: var(--accent); font-size: 0.85rem; padding: 6px 0; text-transform: none; letter-spacing: 0; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 99px;
  padding: 8px 12px;
  font-size: 0.85rem;
  min-height: 40px;
  text-align: left;
}
.chip[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--text); }
.chip[aria-pressed="true"]::before { content: "✓ "; color: var(--accent); font-weight: 700; }
.chip .n { color: var(--muted); margin-left: 4px; }

.nav-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; }

.sync {
  margin-top: 18px;
  font-size: 0.82rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); flex: none; }
.dot.ok { background: var(--ok); }
.dot.warn { background: var(--star); }
.dot.bad { background: var(--bad); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 12px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  font-weight: 600;
  width: 100%;
}
.btn.primary { background: var(--accent-bg); border-color: var(--accent-bg); color: var(--accent-ink); }
.btn.danger { color: var(--bad); border-color: var(--bad); background: transparent; }
.btn.small { min-height: 40px; padding: 8px 12px; font-size: 0.85rem; width: auto; border-radius: 10px; }
.btn:disabled { opacity: .5; cursor: default; }

/* ---------- Question card ---------- */
.card { flex: 1; }
.meta {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  align-items: center;
}
.meta .emne { color: var(--text); font-weight: 600; }
.tag {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 99px;
  background: var(--surface-2);
  color: var(--muted);
}
.tag.rep { background: var(--accent-soft); color: var(--accent); }

.question {
  font-size: 1.22rem;
  line-height: 1.4;
  font-weight: 620;
  margin: 0 0 18px;
  letter-spacing: -0.005em;
}

.options { display: grid; gap: 10px; }
.opt {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  min-height: 62px;
  padding: 14px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: left;
  font-size: 1rem;
  line-height: 1.35;
  transition: border-color .12s, background-color .12s;
}
.opt .letter {
  flex: none;
  width: 32px; height: 32px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-weight: 700;
  font-size: 0.9rem;
  background: var(--surface-2);
}
.opt .txt { padding-top: 4px; }
@media (hover: hover) { .opt:not(:disabled):hover { border-color: var(--accent); } }
.opt:not(:disabled):active { transform: scale(.995); }
.opt:disabled { cursor: default; }
.opt.selected { border-color: var(--accent); background: var(--accent-soft); }
.opt.selected .letter { background: var(--accent-bg); color: var(--accent-ink); }
.opt.correct { border-color: var(--ok); background: var(--ok-bg); }
.opt.correct .letter { background: var(--ok); color: var(--surface); }
.opt.wrong { border-color: var(--bad); background: var(--bad-bg); }
.opt.wrong .letter { background: var(--bad); color: var(--surface); }
.opt.dim { opacity: .55; }

.feedback {
  margin-top: 16px;
  border-radius: var(--radius);
  padding: 14px 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  scroll-margin-bottom: 100px; /* plads til den faste "Næste"-knap */
}
.feedback .verdict { font-weight: 700; font-size: 1.05rem; display: flex; align-items: center; gap: 8px; }
.feedback.ok .verdict { color: var(--ok); }
.feedback.bad .verdict { color: var(--bad); }
.feedback details { margin-top: 8px; }
.feedback summary { cursor: pointer; color: var(--accent); font-weight: 600; padding: 4px 0; }
.feedback p { margin: 8px 0 0; }
.kilde { font-size: 0.85rem; color: var(--muted); }
.kilde .star { color: var(--star); }

.actions {
  position: sticky;
  bottom: 0;
  padding-top: 12px;
  padding-bottom: 4px;
  margin-top: 16px;
  background: linear-gradient(to bottom, transparent, var(--bg) 14px);
  display: flex;
  gap: 10px;
}

.kbd-hint { font-size: 0.75rem; color: var(--muted); text-align: center; margin-top: 8px; }
@media (hover: none) { .kbd-hint { display: none; } }

/* ---------- Exam ---------- */
.grid-nav {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
  margin: 8px 0 16px;
}
.grid-nav button {
  aspect-ratio: 1;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}
.grid-nav button.done { background: var(--accent-soft); border-color: var(--accent); }
.grid-nav button.current { outline: 3px solid var(--accent); outline-offset: 1px; }
.grid-nav button.ok { background: var(--ok-bg); border-color: var(--ok); }
.grid-nav button.bad { background: var(--bad-bg); border-color: var(--bad); }

.result {
  text-align: center;
  padding: 22px 16px;
  border-radius: var(--radius);
  margin: 4px 0 16px;
}
.result.pass { background: var(--ok-bg); color: var(--ok); }
.result.fail { background: var(--bad-bg); color: var(--bad); }
.result .big { font-size: 2.6rem; font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.result .verdict { font-size: 1.3rem; font-weight: 800; letter-spacing: .04em; }
.result small { display: block; color: var(--text); opacity: .8; margin-top: 4px; }

.review { display: grid; gap: 10px; }
.review details {
  border: 1px solid var(--border);
  border-left-width: 5px;
  border-radius: 12px;
  background: var(--surface);
  padding: 12px 14px;
}
.review details.ok { border-left-color: var(--ok); }
.review details.bad { border-left-color: var(--bad); }
.review summary { cursor: pointer; font-weight: 600; list-style: none; }
.review summary::-webkit-details-marker { display: none; }
.review .ans { margin: 8px 0 0; font-size: 0.92rem; }
.review .ans.ok { color: var(--ok); }
.review .ans.bad { color: var(--bad); }
.review p { margin: 8px 0 0; }

/* ---------- Stats ---------- */
.tabs { display: flex; gap: 6px; background: var(--surface-2); padding: 4px; border-radius: 12px; margin-bottom: 14px; }
.tabs button { flex: 1; border: 0; background: transparent; padding: 10px; border-radius: 9px; font-weight: 600; font-size: 0.9rem; color: var(--muted); }
.tabs button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

.rows { display: grid; gap: 8px; }
.row {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
}
.row .top { display: flex; align-items: baseline; gap: 10px; }
.row .name { flex: 1; font-weight: 600; }
.row .pct { font-weight: 700; font-variant-numeric: tabular-nums; }
.row .sub { font-size: 0.8rem; color: var(--muted); margin-top: 2px; }
.row .foot { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.row .foot .sub { flex: 1; margin: 0; }
.bar-track { height: 8px; border-radius: 99px; background: var(--surface-2); overflow: hidden; margin-top: 8px; }
.bar-track > div { height: 100%; border-radius: 99px; }
.lvl-bad { background: var(--bad); }
.lvl-mid { background: var(--star); }
.lvl-ok { background: var(--ok); }
.pct.lvl-bad, .pct.lvl-mid, .pct.lvl-ok { background: none; }
.pct.lvl-bad { color: var(--bad); }
.pct.lvl-mid { color: var(--star); }
.pct.lvl-ok { color: var(--ok); }
.weak-badge { font-size: 0.7rem; font-weight: 700; color: var(--bad); background: var(--bad-bg); padding: 2px 7px; border-radius: 99px; }

.empty { text-align: center; color: var(--muted); padding: 30px 10px; }
.note { font-size: 0.85rem; color: var(--muted); }

/* ---------- Settings ---------- */
.field { display: grid; gap: 6px; margin-bottom: 12px; }
.field label { font-weight: 600; font-size: 0.9rem; }
.field input[type="text"], .field input[type="password"] {
  width: 100%;
  min-height: 50px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.95rem;
}
.toggle { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.toggle input { width: 24px; height: 24px; accent-color: var(--accent-bg); }
.stack { display: grid; gap: 10px; }
.btn-row { display: flex; gap: 10px; }
.btn-row .btn { flex: 1; }

#toast {
  position: fixed;
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom) + 90px);
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 0.9rem;
  max-width: calc(100vw - 32px);
  z-index: 10;
  box-shadow: 0 6px 24px rgb(0 0 0 / 25%);
}

@media (min-width: 700px) {
  .screen { padding-top: calc(env(safe-area-inset-top) + 28px); }
  .grid-nav { grid-template-columns: repeat(10, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}