:root {
  --paper: #f4efe6;
  --paper-2: #fffaf3;
  --ink: #1d1915;
  --muted: #5e564c;
  --line: #ddd4c6;
  --ethics: #1f6b4a;
  --assess: #2a4d7a;
  --intervene: #8a4b2f;
  --good: #1f6b4a;
  --bad: #8d342c;
  --gold: #a6843d;
  --shadow: 0 16px 40px rgba(60, 42, 20, 0.06);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { font-size: 18px; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 500px at 10% -10%, #efe4d2 0%, transparent 55%),
    var(--paper);
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  line-height: 1.5;
}

a { color: inherit; }
button, .button, input { font: inherit; }
button, .button {
  border: 1px solid var(--line);
  background: var(--paper-2);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
button.primary, .button.primary {
  background: var(--ink);
  color: #f7f1e7;
  border-color: var(--ink);
}
button:disabled { opacity: 0.5; cursor: not-allowed; }

.top {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid transparent;
}
.brand {
  font-family: "Iowan Old Style", Palatino, Georgia, serif;
  text-decoration: none;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.who { color: var(--muted); margin-right: auto; }
nav { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; }
nav a, nav button {
  background: transparent;
  border: 0;
  padding: 0.35rem 0.2rem;
  color: var(--muted);
  border-radius: 0;
}
nav form { margin: 0; }

main {
  width: min(42rem, calc(100% - 2rem));
  margin: 0 auto 4rem;
  padding-top: 1.5rem;
}
main.wide { width: min(68rem, calc(100% - 2rem)); }

h1 {
  font-family: "Iowan Old Style", Palatino, Georgia, serif;
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 3.1rem);
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin: 0.2rem 0 0.8rem;
}
h2 { font-size: 1.15rem; margin: 0 0 0.4rem; }
.stem { font-size: clamp(1.45rem, 2.5vw, 1.9rem); }
.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--muted);
}
.lede { font-size: 1.08rem; color: var(--ink); max-width: 40rem; }
.fine { color: var(--muted); font-size: 0.86rem; }
.takeaway { font-family: "Iowan Old Style", Palatino, Georgia, serif; font-size: 1.2rem; }

.card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow);
}
.stack { display: grid; gap: 0.8rem; }
.prose p { margin: 0; }
.alert {
  background: #f8e8e4;
  border: 1px solid #e3c2bb;
  color: #6d2c26;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
}

label { display: grid; gap: 0.35rem; font-size: 0.92rem; }
input[type="text"], input[type="password"], input:not([type]) {
  width: 100%;
  border: 1px solid var(--line);
  background: white;
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
  margin: 1.4rem 0;
}
.hero-stats div {
  background: var(--paper-2);
  border-radius: 16px;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
}
.hero-stats span, .hero-stats small { display: block; color: var(--muted); }
.hero-stats strong {
  font-family: "Iowan Old Style", Palatino, Georgia, serif;
  font-size: 2rem;
  font-weight: 500;
}
.start { margin-bottom: 1.2rem; }
.row { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.row form { margin: 0; }

.areas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}
.area {
  background: var(--paper-2);
  border-radius: 18px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-top: 4px solid var(--ethics);
}
.area-II { border-top-color: var(--assess); }
.area-III { border-top-color: var(--intervene); }
.area header p, .score { margin: 0.2rem 0; }
.score {
  font-family: "Iowan Old Style", Palatino, Georgia, serif;
  font-size: 2rem;
}
.track {
  position: relative;
  height: 8px;
  background: #ebe3d6;
  border-radius: 99px;
  margin: 0.7rem 0;
}
.track span {
  display: block;
  height: 100%;
  background: var(--ink);
  border-radius: inherit;
}
.goal-mark {
  position: absolute;
  left: 80%;
  top: -4px;
  width: 2px;
  height: 16px;
  background: var(--gold);
}

.split {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 0.8rem;
  margin-top: 0.8rem;
}
.work { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.8rem; }
.work li, .sessions li {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: center;
}
.work span, .sessions span { display: block; color: var(--muted); font-size: 0.86rem; }
.sessions { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.55rem; }

.options { display: grid; gap: 0.65rem; margin: 1.2rem 0; padding: 0; }
.option {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: start;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper-2);
  cursor: pointer;
}
.option input { margin-top: 0.35rem; }
.letter {
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #efe7db;
  font-size: 0.85rem;
}
.option:has(input:checked) { border-color: var(--ink); }
.option.is-key { border-color: var(--good); background: #f1f7f3; }
.option.is-chosen:not(.is-key) { border-color: var(--bad); background: #fbf3f1; }
.reviewed { list-style: none; }
.explain h2 { margin-top: 1rem; }
.card.good { border-color: #cfe0d6; }
.card.bad { border-color: #ead3cf; }
article.card { margin: 0.8rem 0; }
.timer { color: var(--muted); }

@media (max-width: 800px) {
  html { font-size: 17px; }
  .hero-stats, .areas, .split { grid-template-columns: 1fr; }
  .who { margin-right: 0; }
}