/* Calm, large type, big tap targets. Light and dark follow the phone. */
:root {
  --bg: #fbf8f1; --card: #ffffff; --ink: #1f2a2e; --soft: #5d6b70; --line: #ddd5c2;
  --accent: #1d6b5a; --accent-ink: #ffffff; --sel: #e3f1ec; --good: #2f7d4f; --bad: #b4483c;
  --amber: #a86a00; --demo: #fff4d6;
  --font: "Noto Sans Malayalam", "Manjari", "Noto Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141a1c; --card: #1d2528; --ink: #ecefe9; --soft: #a3b0b3; --line: #33403f;
    --accent: #5cc0a3; --accent-ink: #0e1a17; --sel: #21403a; --good: #74c793; --bad: #ec8b7f;
    --amber: #f0b44c; --demo: #3a3220;
  }
}
:root[data-theme="dark"] {
  --bg: #141a1c; --card: #1d2528; --ink: #ecefe9; --soft: #a3b0b3; --line: #33403f;
  --accent: #5cc0a3; --accent-ink: #0e1a17; --sel: #21403a; --good: #74c793; --bad: #ec8b7f;
  --amber: #f0b44c; --demo: #3a3220;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font); font-size: 18px; line-height: 1.5;
}
body.locked { overflow: hidden; }
main { max-width: 640px; margin: 0 auto; padding: 16px 16px 32px; min-height: 100vh; }
[lang="ml"] { line-height: 1.75; }

h1 { font-size: 34px; margin: 8px 0 4px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--accent); font-family: Georgia, "Noto Serif", "Noto Serif Malayalam", serif; letter-spacing: .04em; }
.brand svg { width: 48px; height: 48px; flex: none; }
h2 { font-size: 24px; margin: 8px 0 12px; }
h3 { font-size: 17px; margin: 20px 0 8px; color: var(--soft); font-weight: 600; }
a { color: var(--accent); }
.soft { color: var(--soft); font-size: 16px; }
.big { font-size: 21px; margin: 12px 0; }
.loading { text-align: center; margin-top: 40vh; color: var(--soft); }

button { font: inherit; color: inherit; cursor: pointer; }
.primary, .secondary {
  display: block; width: 100%; min-height: 56px; margin: 12px 0; padding: 12px 16px;
  border-radius: 14px; font-size: 19px; font-weight: 600; border: 2px solid var(--accent);
}
.primary { background: var(--accent); color: var(--accent-ink); }
.secondary { background: transparent; color: var(--accent); }
.primary:disabled { opacity: .45; cursor: default; }
.link { background: none; border: 0; padding: 8px 4px; color: var(--accent); text-decoration: underline; font-size: 16px; min-height: 40px; }
.link.danger { color: var(--bad); }

.top { display: flex; justify-content: flex-end; min-height: 40px; }
.levelchip { margin: 0 0 8px; font-weight: 600; color: var(--accent); }
.levelchip select { font: inherit; padding: 8px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
.hist { margin-top: 16px; }
.demo { background: var(--demo); padding: 8px 12px; border-radius: 10px; font-size: 15px; }
.tag { font-size: 12px; border: 1px solid var(--soft); border-radius: 6px; padding: 0 4px; color: var(--soft); vertical-align: middle; }

/* paper */
.strip {
  position: sticky; top: 0; z-index: 2; background: var(--bg);
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  padding: 8px 0; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums;
}
.clock { font-size: 22px; font-weight: 700; }
.clock.amber { color: var(--amber); }
.clock.red { color: var(--bad); }
.qtext { font-size: 20px; margin: 18px 0 6px; white-space: pre-line; }
.years { font-size: 14px; color: var(--soft); margin: 0 0 12px; }
.opts { display: grid; gap: 10px; margin-top: 12px; }
.opt {
  display: flex; gap: 12px; align-items: center; text-align: left; width: 100%;
  min-height: 56px; padding: 10px 14px; border-radius: 14px;
  background: var(--card); border: 2px solid var(--line); font-size: 18px;
}
.opt b { flex: none; width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--soft); display: grid; place-items: center; font-size: 15px; }
.opt.sel { border-color: var(--accent); background: var(--sel); }
.opt.sel b { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.nav { display: flex; gap: 12px; }
.nav > * { flex: 1; }
.report { display: block; margin: 8px auto 0; font-size: 14px; color: var(--soft); }

/* express */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { min-height: 44px; padding: 8px 14px; border-radius: 22px; border: 2px solid var(--line); background: var(--card); font-size: 16px; }
.chip.on { border-color: var(--accent); background: var(--sel); font-weight: 600; }
.chips.medium { align-items: center; margin: 4px 0 8px; }
.chips.medium .soft { margin-right: 4px; }

/* result */
.result { text-align: center; }
.score { font-size: 72px; font-weight: 800; margin: 8px 0 0; line-height: 1.1; font-variant-numeric: tabular-nums; }
.score small { font-size: 28px; color: var(--soft); font-weight: 400; }
.counts { display: flex; justify-content: center; gap: 18px; font-size: 18px; flex-wrap: wrap; }
.good { color: var(--good); } .bad { color: var(--bad); }
.subs { margin: 12px auto; border-collapse: collapse; font-size: 16px; }
.subs td { padding: 4px 12px; border-bottom: 1px solid var(--line); text-align: left; }
.subs td + td { text-align: right; font-variant-numeric: tabular-nums; }
.card { width: 100%; max-width: 420px; border-radius: 12px; border: 1px solid var(--line); margin: 12px auto; display: block; }
.field { display: block; text-align: left; font-size: 16px; color: var(--soft); margin: 12px 0; }
.field input, .field textarea, .field select {
  display: block; width: 100%; margin-top: 4px; padding: 12px; font: inherit; font-size: 18px; color: var(--ink);
  border: 2px solid var(--line); border-radius: 12px; background: var(--card);
}
.check { display: flex; gap: 10px; align-items: flex-start; text-align: left; margin: 10px 0; font-size: 16px; }
.check input { width: 22px; height: 22px; margin-top: 3px; flex: none; }
.sponsor { color: var(--soft); font-size: 15px; margin-top: 20px; }
#adslot { margin: 24px auto 0; min-height: 0; }

/* review */
.rq { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 4px 14px 10px; margin: 14px 0; }
.ropts { list-style: none; padding: 0; margin: 8px 0; }
.ropts li { padding: 6px 8px; border-radius: 8px; }
.ropts li.right { background: color-mix(in srgb, var(--good) 15%, transparent); color: var(--good); font-weight: 600; }
.ropts li.mine { background: color-mix(in srgb, var(--bad) 15%, transparent); color: var(--bad); text-decoration: line-through; }
.src { font-size: 14px; color: var(--soft); margin: 4px 0; }
.fixed { font-size: 14px; color: var(--accent); margin: 4px 0; }

/* sheet */
.sheet { position: fixed; inset: 0; background: rgb(0 0 0 / .45); z-index: 10; display: flex; align-items: flex-end; justify-content: center; }
.sheet[hidden] { display: none; }
.sheet-inner {
  background: var(--bg); width: 100%; max-width: 640px; max-height: 92vh; overflow: auto;
  border-radius: 18px 18px 0 0; padding: 16px 16px calc(16px + env(safe-area-inset-bottom));
}
.ro { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 4px 12px; font-size: 16px; }
.ro ol { padding-left: 24px; margin: 4px 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.msg { min-height: 1.5em; font-size: 16px; }
.gbtn { min-height: 48px; margin: 12px 0; display: flex; justify-content: center; }
.ts-hidden { position: fixed; left: -9999px; bottom: 0; }

.foot { max-width: 640px; margin: 0 auto; padding: 16px; text-align: center; font-size: 14px; color: var(--soft); }
.foot a, .foot .link { color: var(--soft); font-size: 14px; }

/* plain text pages */
.page { max-width: 640px; margin: 0 auto; padding: 16px; }
.page h1 { font-size: 28px; }
.page li { margin: 6px 0; }