:root {
  --bg: #fbfaf7;
  --surface: #fbfaf7;
  --surface-2: #f3f0ea;
  --text: #111111;
  --muted: #666666;
  --border: #d8d3c8;
  --accent: #177245;
  --accent-2: #0f5735;
  --danger: #b42318;
  --warning: #946200;
  --route-submitted: #177245;
  --route-optimal: #604cc3;
}

html[data-theme="dark"] {
  --bg: #111312;
  --surface: #111312;
  --surface-2: #191c1a;
  --text: #f4f1ea;
  --muted: #aaa59b;
  --border: #313631;
  --accent: #80d6a7;
  --accent-2: #aaf0c6;
  --danger: #ff8a80;
  --warning: #ffd180;
  --route-submitted: #80d6a7;
  --route-optimal: #c4b5fd;
}

* { box-sizing: border-box; }
html { color-scheme: light; }
html[data-theme="dark"] { color-scheme: dark; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; }
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled, input:disabled { opacity: .55; cursor: not-allowed; }

.page-shell {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-header { padding-bottom: 22px; border-bottom: 1px solid var(--border); }
.site-footer { margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }
.site-footer a { color: var(--accent-2); font-weight: 800; text-decoration: none; }
.site-footer div { display: grid; gap: 5px; max-width: 760px; }
.site-footer small { display: block; line-height: 1.45; }
.site-footer .privacy-note { max-width: 720px; }

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { font-size: 26px; }
.brand strong { display: block; font-size: 22px; letter-spacing: -0.04em; }
.brand small { display: block; margin-top: -3px; color: var(--muted); }
.top-nav { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.top-nav a { color: var(--muted); font-weight: 750; text-decoration: none; }
.top-nav a:hover { color: var(--text); }

.theme-switch { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; user-select: none; }
.theme-switch input { position: absolute; opacity: 0; }
.slider { position: relative; width: 50px; height: 28px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); }
.slider::after { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: var(--accent); transition: transform .18s ease; }
.theme-switch input:checked + .slider::after { transform: translateX(22px); }

.layout { display: block; }
.card { padding: 26px 0; border-bottom: 1px solid var(--border); background: transparent; box-shadow: none; border-radius: 0; }
.card:last-child { border-bottom: 0; }
.hero-card { padding-top: 34px; }
.side-column { display: grid; gap: 0; }

h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(38px, 8vw, 78px); line-height: .93; letter-spacing: -0.075em; margin-bottom: 16px; max-width: 760px; }
h2 { font-size: 21px; letter-spacing: -0.04em; margin-bottom: 4px; }
h3 { font-size: 14px; color: var(--muted); margin-bottom: 10px; }
.subtitle, .section-heading p, .muted { color: var(--muted); }
.subtitle { font-size: 18px; line-height: 1.55; max-width: 620px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 18px; }
.date-row { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; color: var(--muted); font-weight: 800; font-size: 13px; margin-bottom: 18px; }
.badge, .pill, .score-pill { display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: 999px; padding: 5px 9px; background: var(--surface-2); color: var(--text); font-size: 13px; font-weight: 800; }
.badge-easy { color: #177245; }
.badge-medium { color: #2364aa; }
.badge-hard { color: #946200; }
.badge-expert { color: #b42318; }
.score-pill { font-size: 22px; color: var(--accent-2); padding: 8px 12px; }

.capital-pair { margin-top: 30px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 18px; }
.capital-tile { min-height: auto; padding: 0; border: 0; background: transparent; display: grid; gap: 2px; }
.capital-tile .flag { font-size: 30px; margin-bottom: 8px; }
.capital-name { font-size: clamp(28px, 5vw, 46px); line-height: 1; font-weight: 900; letter-spacing: -0.065em; }
.country-name { color: var(--muted); font-weight: 750; }
.route-arrow { color: var(--muted); font-size: 34px; padding-top: 22px; }

.autocomplete { position: relative; }
.autocomplete label { display: block; font-weight: 900; margin-bottom: 8px; }
.input-row { display: flex; gap: 10px; }
input { width: 100%; border: 1px solid var(--border); border-radius: 10px; padding: 13px 14px; background: var(--surface); color: var(--text); outline: none; }
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent); }
.suggestions { position: absolute; z-index: 30; width: 100%; max-height: 290px; overflow: auto; margin-top: 7px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); box-shadow: 0 12px 28px rgba(0,0,0,.12); }
.suggestion { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border: 0; background: transparent; color: var(--text); text-align: left; }
.suggestion:hover, .suggestion.active { background: var(--surface-2); }
.suggestion small { color: var(--muted); }

.btn { border: 1px solid var(--border); border-radius: 10px; padding: 12px 15px; font-weight: 900; text-decoration: none; display: inline-flex; justify-content: center; align-items: center; gap: 8px; background: transparent; color: var(--text); }
.btn:hover:not(:disabled) { border-color: var(--text); }
.btn-primary { background: var(--text); color: var(--bg); border-color: var(--text); }
html[data-theme="dark"] .btn-primary { background: var(--accent); color: #0b1510; border-color: var(--accent); }
.btn-secondary { background: var(--surface-2); color: var(--text); }
.btn-ghost { background: transparent; color: var(--muted); }
.full-width { width: 100%; }
.button-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0; }

.route-list { list-style: none; padding: 0; margin: 22px 0; display: grid; gap: 7px; }
.route-item { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 11px; padding: 10px 0; border: 0; border-bottom: 1px solid var(--border); background: transparent; border-radius: 0; }
.route-item.fixed { background: transparent; }
.route-item strong { display: block; }
.route-item small { color: var(--muted); }
.remove-btn { border: 0; border-radius: 999px; background: transparent; color: var(--muted); padding: 8px; }
.route-connector { text-align: left; color: var(--muted); font-weight: 900; padding-left: 18px; }

.notice, .error-box, .hint-box { border-left: 3px solid var(--border); padding: 10px 0 10px 14px; margin: 12px 0; line-height: 1.45; background: transparent; border-radius: 0; }
.notice { border-left-color: var(--accent); }
.notice.small { font-size: 13px; }
.error-box { border-left-color: var(--danger); color: var(--danger); }
.hint-box { border-left-color: var(--warning); }
.hint-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.hint-pill { padding: 7px 10px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--text); }

.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.compact-path { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.path-chip { border: 1px solid var(--border); border-radius: 999px; background: transparent; padding: 8px 10px; font-weight: 800; font-size: 13px; }
.meta-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 18px 0; }
.meta-grid div, .stats-grid div { border: 1px solid var(--border); border-radius: 10px; background: transparent; padding: 12px; }
.meta-grid strong, .stats-grid strong { display: block; font-size: 24px; letter-spacing: -0.04em; }
.meta-grid span, .stats-grid span { color: var(--muted); font-size: 13px; font-weight: 700; }
.map { height: 360px; border-radius: 10px; overflow: hidden; border: 1px solid var(--border); margin: 16px 0; background: var(--surface-2); }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.rules-card ul { margin: 0; padding-left: 19px; color: var(--muted); line-height: 1.6; }
.leaderboard-card ol { margin: 0; padding-left: 20px; }
.leaderboard-card li { margin: 10px 0; display: flex; justify-content: space-between; gap: 10px; }

.archive-main { display: grid; gap: 0; }
.archive-grid { display: grid; grid-template-columns: 1fr; gap: 0; }
.archive-card h2 { font-size: 22px; }
.archive-card p { color: var(--muted); }
.hidden { display: none !important; }

@media (max-width: 740px) {
  .page-shell { width: min(100% - 22px, 860px); padding-top: 16px; }
  .site-header { align-items: flex-start; flex-wrap: wrap; }
  .top-nav { margin-left: 0; }
  .theme-label { display: none; }
  .capital-pair { grid-template-columns: 1fr; gap: 10px; }
  .route-arrow { padding: 0; transform: rotate(90deg); justify-self: start; }
  .input-row { flex-direction: column; }
  .result-grid, .meta-grid, .stats-grid { grid-template-columns: 1fr; }
  .map { height: 300px; }
}