:root {
  color-scheme: light;
  --bg: #f6f0e5;
  --panel: #fffaf1;
  --ink: #233126;
  --muted: #687465;
  --green: #1f7a4d;
  --yellow: #b76f00;
  --red: #a33a2f;
  --line: #ddd1bd;
  --shadow: 0 18px 50px rgba(49, 37, 17, .12);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 20% 0%, #fff8d9 0, transparent 32%), linear-gradient(135deg, #eef5df, var(--bg));
  color: var(--ink);
}
.shell { width: min(1120px, calc(100% - 28px)); margin: 0 auto; padding: 34px 0 80px; }
.hero { padding: 32px 0 18px; }
.eyebrow { color: var(--green); font-weight: 800; text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; }
h1 { font-size: clamp(2.2rem, 7vw, 5.4rem); line-height: .92; margin: 10px 0 18px; max-width: 920px; letter-spacing: -.06em; }
.lede { max-width: 760px; font-size: 1.2rem; color: #435040; }
.guardrail { max-width: 860px; color: #7b5d22; background: #fff2cc; border: 1px solid #ead08b; padding: 12px 14px; border-radius: 14px; }
.panel, .card { background: rgba(255, 250, 241, .9); border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 24px; }
.form-panel { padding: 18px; position: sticky; top: 10px; z-index: 2; backdrop-filter: blur(12px); }
form { display: grid; grid-template-columns: repeat(5, minmax(120px, 1fr)) auto; gap: 12px; align-items: end; }
label { display: grid; gap: 6px; font-weight: 800; font-size: .85rem; color: #435040; }
input, select { border: 1px solid var(--line); border-radius: 12px; padding: 12px 11px; background: #fffdf8; color: var(--ink); font: inherit; }
button { border: 0; border-radius: 14px; padding: 13px 18px; background: var(--green); color: white; font-weight: 900; cursor: pointer; box-shadow: 0 10px 24px rgba(31, 122, 77, .22); }
.results { display: grid; gap: 16px; margin-top: 20px; }
.result-head { display: flex; justify-content: space-between; gap: 20px; align-items: end; }
.result-head h2 { margin: 12px 0 0; font-size: 2rem; }
.result-head p { color: var(--muted); max-width: 600px; }
.card { padding: 20px; }
.card.green { border-left: 8px solid var(--green); }
.card.yellow { border-left: 8px solid var(--yellow); }
.card.red { border-left: 8px solid var(--red); }
.card-top { display: flex; justify-content: space-between; gap: 16px; }
.rank { font-size: .82rem; color: var(--muted); font-weight: 900; }
.card h2 { margin: 4px 0 0; font-size: 1.55rem; }
.score { width: 86px; height: 70px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 18px; background: #fffdf8; }
.score strong { font-size: 1.7rem; line-height: 1; }
.score span { font-size: .78rem; color: var(--muted); margin-top: -12px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.badge { border-radius: 999px; background: #efe6d6; padding: 7px 10px; font-weight: 800; font-size: .82rem; color: #4d4638; }
.badge.green { background: #dcefe5; color: #125d39; }
.badge.yellow { background: #fff0c8; color: #7a4a00; }
.badge.red, .risk-high { background: #f5d9d5; color: #7a2018; }
.risk-medium { background: #fff0c8; color: #7a4a00; }
.risk-low { background: #dcefe5; color: #125d39; }
.risk-unknown { background: #e6e2da; color: #4d4638; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
h3, h4 { margin-bottom: 6px; }
ul { margin-top: 6px; padding-left: 20px; color: #465347; }
li { margin: 5px 0; }
details { margin-top: 12px; border-top: 1px solid var(--line); padding-top: 12px; }
summary { cursor: pointer; font-weight: 900; }
.sources { display: flex; flex-wrap: wrap; gap: 10px; }
a { color: var(--green); font-weight: 800; }
.loading, .error { padding: 20px; border-radius: 18px; background: var(--panel); border: 1px solid var(--line); }
.error { color: var(--red); }
@media (max-width: 900px) {
  form { grid-template-columns: 1fr 1fr; }
  button { grid-column: 1 / -1; }
  .grid { grid-template-columns: 1fr; }
  .result-head { display: block; }
}
.calc-grid { display: grid; grid-template-columns: repeat(3, minmax(120px, 1fr)); gap: 10px; margin: 10px 0; }
.calc-grid div { background: #fffdf8; border: 1px solid var(--line); border-radius: 14px; padding: 10px; }
.calc-grid span { display: block; color: var(--muted); font-size: .78rem; font-weight: 800; }
.calc-grid strong { display: block; margin-top: 3px; font-size: 1.15rem; }
.calc-note { color: #7b5d22; background: #fff2cc; border-radius: 12px; padding: 10px; }
@media (max-width: 700px) { .calc-grid { grid-template-columns: 1fr 1fr; } }
.export-btn { margin-top: 10px; background: #253528; box-shadow: none; padding: 10px 14px; }
.assumption-editor { display: grid; grid-template-columns: repeat(5, minmax(120px, 1fr)); gap: 10px; margin: 12px 0; }
.assumption-editor label { display: grid; gap: 5px; color: var(--muted); font-size: .78rem; font-weight: 900; }
.assumption-editor input { width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 12px; font: inherit; background: #fffef9; color: var(--ink); }
@media (max-width: 900px) { .assumption-editor { grid-template-columns: 1fr 1fr; } }