:root {
  --bg: #eef2f7;
  --card: #ffffff;
  --ink: #152238;
  --muted: #5c6b82;
  --line: #d8e0ea;
  --accent: #d9762b;
  --accent-soft: #fbe8d6;
  --left: #2f6fd6;
  --right: #c2410c;
  --either: #7c6fb0;
  --shadow: 0 1px 2px rgba(15, 26, 43, .05), 0 10px 30px -18px rgba(15, 26, 43, .35);
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1320; --card: #131e30; --ink: #e8eef7; --muted: #93a3bb; --line: #243249;
    --accent: #f2a65a; --accent-soft: #3a2a1a; --left: #6ea0ff; --right: #ff8a4c; --either: #b3a6ee;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 14px 34px -20px rgba(0, 0, 0, .9);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1320; --card: #131e30; --ink: #e8eef7; --muted: #93a3bb; --line: #243249;
  --accent: #f2a65a; --accent-soft: #3a2a1a; --left: #6ea0ff; --right: #ff8a4c; --either: #b3a6ee;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 14px 34px -20px rgba(0, 0, 0, .9);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--sans); }
main { max-width: 900px; margin: 0 auto; padding: 28px 16px 64px; padding-top: max(28px, env(safe-area-inset-top)); }
a { color: var(--accent); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); }
.muted { color: var(--muted); }

/* masthead */
.mast { display: flex; gap: 18px; align-items: center; margin-bottom: 22px; }
.mast h1 { font: 700 clamp(34px, 7vw, 52px)/1 var(--serif); margin: 0 0 8px; letter-spacing: -.02em; }
.tag { margin: 0; color: var(--muted); max-width: 46ch; }
.porthole { flex: none; width: 74px; height: 104px; border-radius: 40px; padding: 8px; background: linear-gradient(160deg, #dfe6ef, #b9c4d3); box-shadow: inset 0 2px 4px rgba(0,0,0,.2), var(--shadow); }
.glass { position: relative; width: 100%; height: 100%; border-radius: 32px; overflow: hidden; background: linear-gradient(180deg, #243b64 0%, #e27a3f 62%, #f6c27a 78%, #6d86a8 79%, #3e5474 100%); }
.glass .sun { position: absolute; left: 50%; top: 58%; width: 18px; height: 18px; margin-left: -9px; border-radius: 50%; background: #ffe2a6; box-shadow: 0 0 18px 6px rgba(255, 210, 140, .7); }
.glass .ridge { position: absolute; left: -10%; right: -10%; bottom: 19%; height: 20%; background: #34486a; clip-path: polygon(0 100%, 12% 40%, 22% 70%, 36% 10%, 48% 60%, 60% 30%, 74% 75%, 86% 35%, 100% 100%); }

/* form */
.form { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; padding: 16px; align-items: end; }
.field { display: flex; flex-direction: column; gap: 4px; position: relative; grid-column: span 2; }
.field.ap { grid-column: span 3; }
.field.avoid { grid-column: 1 / -1; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips:not(:empty) { margin-bottom: 6px; }
.chip { display: inline-flex; align-items: center; gap: 4px; background: var(--accent-soft); color: var(--ink); border-radius: 99px; padding: 3px 4px 3px 10px; font-size: 14px; }
.chip button { border: 0; background: transparent; color: var(--muted); font-size: 16px; line-height: 1; cursor: pointer; padding: 0 4px; }
.over { display: block; margin-top: 6px; color: var(--muted); }
.field label { font: 600 12px var(--sans); color: var(--muted); letter-spacing: .02em; }
.field small { font-weight: 400; }
input { font: 500 16px var(--sans); color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; width: 100%; min-width: 0; }
input:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }
button[type=submit] { grid-column: 1 / -1; font: 600 16px var(--sans); border: 0; border-radius: 12px; padding: 13px; background: var(--ink); color: var(--card); cursor: pointer; }
button[type=submit]:hover { background: var(--accent); color: #fff; }
.sugg { position: absolute; top: 100%; left: 0; right: 0; z-index: 1000; margin: 4px 0 0; padding: 4px; list-style: none; background: var(--card); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); max-height: 300px; overflow: auto; }
.sugg li { padding: 8px 10px; border-radius: 7px; cursor: pointer; font-size: 15px; }
.sugg li small { display: block; color: var(--muted); font-size: 12px; }
.sugg li b { font-family: var(--mono); margin-right: 4px; }
.sugg li:hover, .sugg li.on { background: var(--accent-soft); }

/* results */
#out { margin-top: 22px; }
.summary { display: grid; grid-template-columns: 1.2fr 1fr; gap: 14px; }
.verdict, .sunbox { padding: 18px 20px; }
.kicker { margin: 0 0 4px; font: 600 11px var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.verdict h2 { font: 700 clamp(28px, 5vw, 38px)/1.1 var(--serif); margin: 0; }
.verdict h2 em { font-style: normal; }
.verdict.left h2 em { color: var(--left); }
.verdict.right h2 em { color: var(--right); }
.seat { margin: 6px 0 10px; font: 500 14px var(--mono); }
.why { margin: 0; }
.sunbox p { margin: 0 0 6px; }
.evt { font-weight: 600; }
.route { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 14px; align-items: center; font: 400 13px var(--mono); color: var(--muted); margin: 16px 0 10px; }
.tmode select { font: 500 13px var(--sans); color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 4px 6px; margin-left: 4px; }
.zn { font-size: 10px; color: var(--muted); font-weight: 400; }
.map { height: 360px; overflow: hidden; }
.error { padding: 14px 16px; }

.section-h { font: 600 12px var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 28px 0 10px; }
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { display: grid; grid-template-columns: 96px 34px 1fr; gap: 10px; align-items: start; padding: 12px 0; border-bottom: 1px solid var(--line); }
.timeline li.dim { opacity: .5; }
.when { font: 500 15px var(--mono); }
.when small { display: block; font-size: 11px; color: var(--muted); }
.side { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; font: 600 12px var(--mono); color: #fff; }
.side.left { background: var(--left); }
.side.right { background: var(--right); }
.side.either { background: var(--either); font-size: 10px; }
.side.none { background: var(--line); width: 10px; height: 10px; margin: 10px; }
.timeline b a { color: var(--ink); text-decoration-color: var(--line); }
.desc { display: block; color: var(--muted); font-size: 14px; }
.notes { display: block; font: 400 12px var(--mono); color: var(--muted); margin-top: 2px; }

/* map pins */
.pin.ap { background: var(--ink); color: var(--card); font: 600 11px var(--mono); padding: 2px 6px; border-radius: 6px; white-space: nowrap; transform: translate(-50%, -50%); }
.pin.lm { width: 12px; height: 12px; border-radius: 50%; border: 2px solid #fff; transform: translate(-50%, -50%); }
.pin.lm.left { background: var(--left); }
.pin.lm.right { background: var(--right); }
.pin.lm.either { background: var(--either); }

.route-note { margin: 14px 0 0; padding: 12px 16px; font-size: 14px; border-left: 4px solid var(--accent); }
.dark-note { margin-top: 12px; font-size: 14px; }
.foot { margin-top: 40px; font-size: 13px; color: var(--muted); }

@media (max-width: 640px) {
  .mast { align-items: flex-start; }
  .porthole { width: 58px; height: 82px; }
  .form { grid-template-columns: 1fr 1fr; }
  .field, .field.ap { grid-column: span 1; }
  .field.ap, .field.avoid { grid-column: 1 / -1; }
  .summary { grid-template-columns: 1fr; }
  .map { height: 280px; }
  .timeline li { grid-template-columns: 76px 30px 1fr; gap: 8px; }
}