:root {
  --bg: #f4efe6;
  --ink: #161d29;
  --muted: #5c6574;
  --navy: #1c2a44;
  --card: #fffdf8;
  --line: rgba(28, 42, 68, 0.12);
  --teal: #0f7a74;
  --teal-soft: rgba(15, 122, 116, 0.12);
  --coral: #c43c28;
  --gold: #c49a2a;
  --good: #1f7a45;
  --bad: #b1332c;
  --shadow: 0 16px 36px rgba(22, 29, 41, 0.08);
  --radius: 18px;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
html { scroll-padding-top: 96px; }
body {
  font-family: "Cairo", "Segoe UI", Tahoma, sans-serif;
  background:
    radial-gradient(900px 420px at 100% -10%, rgba(15, 122, 116, 0.14), transparent 55%),
    radial-gradient(700px 360px at -10% 10%, rgba(196, 60, 40, 0.08), transparent 50%),
    var(--bg);
  color: var(--ink);
  line-height: 1.75;
  display: flex;
  flex-direction: column;
}
button, input { font-family: inherit; }
button { cursor: pointer; }
img, svg { max-width: 100%; display: block; }
.skip {
  position: absolute;
  inset-inline-start: -999px;
  background: var(--navy);
  color: #fff;
  padding: 8px 14px;
}
.skip:focus { inset-inline-start: 8px; top: 8px; z-index: 80; }
.hidden { display: none !important; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; gap: 10px; align-items: center; }
.mark {
  background: var(--navy);
  color: #fff;
  font-weight: 900;
  padding: 8px 10px;
  border-radius: 12px;
}
.brand strong { display: block; color: var(--navy); }
.brand small { display: block; color: var(--muted); font-size: 0.78rem; }
.who {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 6px 12px;
  text-align: end;
}
.who b { display: block; }
.who span { color: var(--muted); font-size: 0.78rem; }

.shell { width: min(980px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 48px; flex: 1; }
.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
  padding: 8px 16px 18px;
}
.footer strong { color: var(--navy); }

h1 { margin: 0 0 8px; font-size: clamp(1.6rem, 4vw, 2.35rem); color: var(--navy); line-height: 1.35; }
.kicker {
  margin: 0 0 6px;
  color: var(--teal);
  font-weight: 800;
}
.lead { color: var(--muted); margin: 0 0 18px; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 0 0 16px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
}
.stat b { display: block; color: var(--navy); font-size: 1.15rem; }
.stat span { color: var(--muted); font-size: 0.82rem; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow);
}
.panel h2 { margin: 0 0 8px; font-size: 1.2rem; color: var(--navy); }
.panel ul { margin: 0 0 14px; padding-inline-start: 18px; }
.panel li { margin: 4px 0; }

.form { display: grid; gap: 10px; }
.form-row { display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 10px; }
label { font-weight: 800; color: var(--navy); font-size: 0.92rem; }
input[type="text"] {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 12px 12px;
  font-size: 1rem;
  color: var(--ink);
}
input:focus { outline: 2px solid rgba(15, 122, 116, 0.35); border-color: var(--teal); }
.err { color: var(--bad); font-weight: 800; min-height: 1.4em; margin: 0; }

.btn {
  border: 0;
  background: var(--teal);
  color: #fff;
  font-weight: 800;
  border-radius: 14px;
  padding: 12px 16px;
  font-size: 1rem;
}
.btn:hover { filter: brightness(1.05); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; filter: none; }
.btn.navy { background: var(--navy); }
.btn.ghost {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--line);
}
.btn.coral { background: var(--coral); }
.row-btns { display: flex; flex-wrap: wrap; gap: 8px; }

.resume {
  margin-top: 12px;
  padding: 12px;
  border-radius: 14px;
  background: rgba(196, 154, 42, 0.12);
  border: 1px solid rgba(196, 154, 42, 0.35);
}

.progress-wrap { margin-bottom: 12px; }
.progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 700;
}
.bar {
  height: 8px;
  background: rgba(28, 42, 68, 0.08);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 6px;
}
.bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--teal), #1c2a44);
  width: 0;
}

.case {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.case-top {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.aim-pill, .topic-pill {
  display: inline-block;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 800;
}
.aim-pill { background: var(--teal-soft); color: #0b5c58; }
.topic-pill { background: rgba(28, 42, 68, 0.06); color: var(--navy); }
.case h2 { margin: 0 0 10px; color: var(--navy); font-size: 1.45rem; }
.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}
.facts li {
  background: #f7f3ea;
  border-radius: 12px;
  padding: 6px 10px;
  font-size: 0.86rem;
}
.facts b { color: var(--navy); }
.scene { margin: 0 0 8px; }
.ask { margin: 0 0 12px; font-weight: 800; color: var(--navy); }

.opts { display: grid; gap: 8px; }
.opt {
  text-align: start;
  width: 100%;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: 16px;
  padding: 12px 12px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  color: inherit;
  line-height: 1.65;
}
.opt:hover { border-color: rgba(15, 122, 116, 0.45); }
.opt.on {
  border-color: var(--teal);
  background: #eef8f6;
}
.letter {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-weight: 900;
  background: rgba(28, 42, 68, 0.06);
  color: var(--navy);
}
.opt.on .letter { background: var(--teal); color: #fff; }
.opt:disabled { cursor: default; }
.opt.good { border-color: var(--good); background: #f4fbf6; }
.opt.bad { border-color: var(--bad); background: #fff6f5; }
.opt.dim { background: #fbfaf7; }
.opt.good .letter { background: var(--good); color: #fff; }
.opt.bad .letter { background: var(--bad); color: #fff; }
.opt .why { display: block; margin-top: 4px; color: var(--muted); font-weight: 600; font-size: 0.88rem; }
.opt-tag { color: var(--navy); }
.instant {
  border-radius: 14px;
  padding: 10px 12px;
  margin: 0 0 12px;
}
.instant strong { display: block; }
.instant p { margin: 4px 0 0; font-weight: 600; }
.instant.good { background: #f4fbf6; color: var(--good); }
.instant.bad { background: #fff6f5; color: var(--bad); }
.map button.miss { background: #fff6f5; color: var(--bad); border-color: rgba(177, 51, 44, 0.35); }
.pick-note { margin: 10px 0 0; font-weight: 800; color: var(--teal); min-height: 1.5em; }
.pick-note.warn { color: var(--coral); }

.nav {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 14px;
}
.map {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.map button {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
  font-weight: 800;
  color: var(--navy);
}
.map button.done { background: var(--teal-soft); border-color: transparent; }
.map button.here { outline: 2px solid var(--navy); }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(16, 24, 36, 0.45);
  display: grid;
  place-items: center;
  padding: 18px;
  z-index: 50;
}
.modal .panel { width: min(460px, 100%); }

.score-hero {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
}
.ring {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--teal) calc(var(--p) * 1%), rgba(28, 42, 68, 0.08) 0);
}
.ring span {
  width: 112px;
  height: 112px;
  border-radius: 50%;
  background: var(--card);
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 1.7rem;
  color: var(--navy);
}
.verdict { font-size: 1.15rem; font-weight: 800; color: var(--navy); margin: 0 0 6px; }
.aims { display: grid; gap: 8px; margin: 12px 0; }
.aim-row { display: grid; grid-template-columns: 150px 1fr 52px; gap: 8px; align-items: center; }
.aim-row .track { height: 10px; background: rgba(28, 42, 68, 0.08); border-radius: 99px; overflow: hidden; }
.aim-row .track i { display: block; height: 100%; background: var(--teal); }
.aim-row.weak .track i { background: var(--coral); }

.filters { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 12px; }
.filters button.on { background: var(--navy); color: #fff; border-color: var(--navy); }

.lesson {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  margin: 8px 0;
  overflow: hidden;
}
.lesson summary {
  cursor: pointer;
  padding: 12px 14px;
  font-weight: 800;
  color: var(--navy);
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.lesson summary::-webkit-details-marker { display: none; }
.lesson .body { padding: 0 14px 14px; }
.lesson.miss { border-color: rgba(177, 51, 44, 0.35); }
.tag {
  font-size: 0.75rem;
  border-radius: 999px;
  padding: 2px 8px;
  font-weight: 800;
}
.tag.ok { background: rgba(31, 122, 69, 0.12); color: var(--good); }
.tag.no { background: rgba(177, 51, 44, 0.12); color: var(--bad); }
.rule {
  background: rgba(15, 122, 116, 0.08);
  border-radius: 12px;
  padding: 8px 10px;
  font-weight: 800;
}
.lesson h3 {
  margin: 14px 0 6px;
  font-size: 1rem;
  color: var(--navy);
}
.choice {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 12px;
  margin: 8px 0;
  background: #fff;
}
.choice.bad { border-color: rgba(177, 51, 44, 0.35); background: #fff6f5; }
.choice.good { border-color: rgba(31, 122, 69, 0.28); background: #f4fbf6; }
.choice strong { display: inline; }
.review-head { margin-bottom: 12px; }
.review-head p { margin: 0; }

.copyline {
  margin-top: 18px;
  text-align: center;
  color: var(--muted);
  font-weight: 700;
}

@media (max-width: 720px) {
  .stats, .form-row, .score-hero, .aim-row { grid-template-columns: 1fr; }
  .topbar { padding: 10px 12px; }
  .shell { width: min(100% - 20px, 980px); }
  .nav { flex-direction: column; }
  .nav .btn { width: 100%; }
}
@media print {
  .topbar, .nav, .filters, .map, .row-btns, .footer { display: none; }
  body { background: #fff; }
  .lesson { break-inside: avoid; }
}