:root {
  --paper: #edf1f5;
  --surface: #ffffff;
  --ink: #18202e;
  --muted: #566173;
  --line: #c9d2dc;
  --land: #d5dde6;
  --bordo: #7a1f33;
  --bordo-ink: #ffffff;
  --stamp: #2d5da8;
  --ok: #2e7a57;
  --warn-bg: #fff4dc;
  --warn-ink: #6b4a00;
  /* difficulty ramp, light to dark */
  --l1: #e7cfd5;
  --l2: #cf8d9c;
  --l3: #a3445a;
  --l4: #5e1022;
  --display: 'Bricolage Grotesque', system-ui, sans-serif;
  --body: 'Atkinson Hyperlegible Next', system-ui, sans-serif;
  --measure: 68ch;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #111720; --surface: #1a2230; --ink: #e6ebf1; --muted: #9aa6b6; --line: #2d3848; --land: #273243;
    --bordo: #d0627a; --bordo-ink: #111720; --stamp: #8db3f0; --ok: #6fc49b;
    --warn-bg: #2e2612; --warn-ink: #f0d48c;
    --l1: #4a2e37; --l2: #7d3a4c; --l3: #b45069; --l4: #ec8ea3;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.0625rem/1.6 var(--body); }
a { color: var(--bordo); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--stamp); outline-offset: 2px; border-radius: 4px; }
img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }
.wrap { width: min(1180px, 100% - 32px); margin-inline: auto; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.top { border-bottom: 1px solid var(--line); background: var(--surface); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font: 700 1.15rem/1 var(--display); color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand svg { width: 30px; height: 30px; color: var(--bordo); }
.top nav { display: flex; gap: 20px; font-size: 0.95rem; align-items: center; }
.top nav a { color: var(--ink); text-decoration: none; }
.top nav a:hover, .top nav a[aria-current] { color: var(--bordo); }
.lang { border: 1.5px solid var(--line); border-radius: 999px; padding: 3px 10px; font-size: 0.85rem; }

/* Hero */
.hero { padding: 44px 0 0; }
.hero h1 { font: 800 clamp(2.3rem, 5.4vw, 4.4rem)/1 var(--display); letter-spacing: -0.04em; margin: 0 0 14px; max-width: 16ch; }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 52ch; margin: 0 0 26px; }

/* The route strip: a boarding-pass row */
.strip {
  display: grid; grid-template-columns: 1fr auto 1fr auto auto; align-items: end; gap: 14px;
  background: var(--surface); border-radius: 16px; padding: 16px 18px;
  box-shadow: 0 1px 0 var(--line), 0 16px 36px -26px rgba(24, 32, 46, .5);
  position: relative; z-index: 2;
}
.strip label { display: block; font: 600 0.82rem/1 var(--display); color: var(--muted); margin-bottom: 7px; }
.strip select { font: 700 1.15rem/1.2 var(--display); color: var(--ink); background: var(--paper); border: 1.5px solid var(--line); border-radius: 10px; padding: 10px 12px; width: 100%; min-height: 48px; letter-spacing: -0.01em; }
.strip select:focus { border-color: var(--stamp); }
.strip .plane { color: var(--bordo); align-self: center; margin-top: 18px; }
.strip .plane svg { width: 26px; height: 26px; }
.species { display: flex; align-self: end; border: 1.5px solid var(--line); border-radius: 10px; overflow: hidden; min-height: 48px; }
.species input { position: absolute; opacity: 0; pointer-events: none; }
.strip .species label, .card .species label { margin: 0; font-size: 1rem; color: var(--muted); display: grid; place-items: center; padding: 0 16px; cursor: pointer; font: 600 1rem/1 var(--display); color: var(--muted); background: var(--paper); }
.species input:checked + label, .strip .species input:checked + label { background: var(--ink); color: var(--paper); }
.species input:focus-visible + label { outline: 3px solid var(--stamp); outline-offset: -3px; }
.go { font: 700 1.05rem/1 var(--display); color: var(--bordo-ink); background: var(--bordo); border: 0; border-radius: 12px; padding: 0 22px; min-height: 48px; cursor: pointer; white-space: nowrap; }
.go:hover { filter: brightness(1.08); }

/* Map */
.atlas { position: relative; margin: -8px 0 0; }
.atlas svg { width: 100%; height: auto; }
.atlas .c { fill: var(--land); stroke: var(--paper); stroke-width: .5; transition: fill .4s ease; }
.atlas .c.v { cursor: pointer; }
.atlas .c[data-l="1"] { fill: var(--l1); } .atlas .c[data-l="2"] { fill: var(--l2); }
.atlas .c[data-l="3"] { fill: var(--l3); } .atlas .c[data-l="4"] { fill: var(--l4); }
.atlas .c.o { fill: var(--stamp); }
.atlas .c.d { stroke: var(--ink); stroke-width: 1.4; }
.atlas .c.v:hover { stroke: var(--ink); stroke-width: 1; }
.atlas .dot { fill: var(--land); stroke: var(--paper); stroke-width: .6; }
.atlas .dot[data-l="1"] { fill: var(--l1); } .atlas .dot[data-l="2"] { fill: var(--l2); }
.atlas .dot[data-l="3"] { fill: var(--l3); } .atlas .dot[data-l="4"] { fill: var(--l4); }
.atlas .arc { fill: none; stroke: var(--ink); stroke-width: 1.6; stroke-dasharray: 4 4; }
.atlas .arc-live { fill: none; stroke: var(--ink); stroke-width: 1.8; stroke-linecap: round; }
.atlas .pin { fill: var(--surface); stroke: var(--ink); stroke-width: 1.6; }
.atlas .jet { fill: var(--ink); }
.tip { position: absolute; pointer-events: none; background: var(--ink); color: var(--paper); font-size: 0.85rem; padding: 6px 10px; border-radius: 8px; transform: translate(-50%, calc(-100% - 10px)); white-space: nowrap; }
.legend { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; font-size: 0.88rem; color: var(--muted); margin: 6px 0 0; }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 14px; height: 14px; border-radius: 4px; display: inline-block; }
.legend .from i { background: var(--stamp); }
.legend .na i { background: var(--land); }

/* Result pass */
.result { margin: 26px 0 0; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); background: var(--surface); border-radius: 18px; overflow: hidden; box-shadow: 0 1px 0 var(--line), 0 18px 40px -28px rgba(24, 32, 46, .5); }
.result-main { padding: 24px 26px; }
.result-side { padding: 24px 26px; border-left: 2px dashed var(--line); position: relative; }
.result-side::before, .result-side::after { content: ''; position: absolute; left: -13px; width: 24px; height: 24px; border-radius: 50%; background: var(--paper); }
.result-side::before { top: -12px; } .result-side::after { bottom: -12px; }
.route { font: 800 clamp(1.5rem, 3vw, 2.1rem)/1.1 var(--display); letter-spacing: -0.03em; margin: 0 0 6px; }
.group-label { color: var(--muted); margin: 0 0 16px; }
.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 16px; margin: 0 0 18px; }
.facts div { border-top: 1px solid var(--line); padding-top: 8px; }
.facts dt { color: var(--muted); font-size: 0.82rem; }
.facts dd { margin: 2px 0 0; font: 700 1.02rem/1.25 var(--display); }
.stamp { display: inline-grid; justify-items: center; padding: 10px 18px; color: var(--stamp); border: 3px double var(--stamp); border-radius: 10px; transform: rotate(-4deg); font-family: var(--display); margin: 4px 0 12px; }
.stamp small { font-size: 0.85rem; font-weight: 600; }
.stamp strong { font-size: clamp(1.4rem, 3.4vw, 1.9rem); font-weight: 800; letter-spacing: 0.02em; line-height: 1.1; }
.stamp.hit { animation: stamp .38s cubic-bezier(.2, 1.4, .4, 1) both; }
@keyframes stamp { from { transform: rotate(-4deg) scale(1.7); opacity: 0; } to { transform: rotate(-4deg) scale(1); opacity: 1; } }
.dates { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 14px; }
.dates label { font-weight: 700; font-size: 0.85rem; display: block; margin-bottom: 4px; }
.dates input { font: inherit; font-size: 0.95rem; color: var(--ink); background: var(--paper); border: 1.5px solid var(--line); border-radius: 9px; padding: 8px 10px; width: 100%; min-height: 42px; }
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0 8px 22px; border-top: 1px solid var(--line); position: relative; font-size: 0.93rem; }
.timeline li::before { content: ''; position: absolute; left: 2px; top: 15px; width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--muted); }
.timeline li.done::before { background: var(--ok); border-color: var(--ok); }
.timeline li.arrive { font-weight: 700; }
.timeline li.arrive::before { background: var(--bordo); border-color: var(--bordo); }
.timeline time { white-space: nowrap; color: var(--muted); }
.note { background: var(--warn-bg); color: var(--warn-ink); padding: 10px 12px; border-radius: 8px; font-size: 0.9rem; margin: 12px 0 0; }
.fine { color: var(--muted); font-size: 0.82rem; margin: 12px 0 0; }
.cta { display: inline-block; margin-top: 16px; font: 700 1rem/1 var(--display); color: var(--bordo-ink); background: var(--bordo); border-radius: 11px; padding: 13px 18px; text-decoration: none; }
.empty-state { color: var(--muted); }

/* Sections */
.section { padding: 64px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section h2 { font: 700 clamp(1.6rem, 3vw, 2.2rem)/1.15 var(--display); letter-spacing: -0.02em; margin: 0 0 8px; }
.section .sub { color: var(--muted); max-width: var(--measure); margin: 0 0 28px; }

.process { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px; }
.process li { counter-increment: s; border-top: 3px solid var(--bordo); padding-top: 14px; }
.process li::before { content: counter(s); font: 800 2rem/1 var(--display); color: var(--bordo); display: block; margin-bottom: 8px; }
.process b { font-family: var(--display); display: block; margin-bottom: 4px; font-size: 1.05rem; }
.process span { color: var(--muted); font-size: 0.95rem; }

.regions { columns: 4 220px; column-gap: 32px; }
.region { break-inside: avoid; margin: 0 0 26px; }
.region h3 { font: 700 1.05rem/1.2 var(--display); margin: 0 0 8px; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
.region ul { list-style: none; padding: 0; margin: 0; }
.region li { padding: 3px 0; display: flex; justify-content: space-between; gap: 10px; }
.region a { color: var(--ink); text-decoration: none; }
.region a:hover { color: var(--bordo); text-decoration: underline; }
.lvl { display: inline-flex; gap: 2px; align-items: center; }
.lvl i { width: 6px; height: 12px; border-radius: 2px; background: var(--line); }
.lvl[data-l="1"] i:nth-child(-n+1), .lvl[data-l="2"] i:nth-child(-n+2), .lvl[data-l="3"] i:nth-child(-n+3), .lvl[data-l="4"] i:nth-child(-n+4) { background: var(--bordo); }

/* Destination page */
.article { padding: 40px 0 64px; }
.crumbs { font-size: 0.9rem; color: var(--muted); margin-bottom: 18px; }
.crumbs a { color: var(--muted); }
.article h1 { font: 800 clamp(2rem, 4.6vw, 3.4rem)/1.04 var(--display); letter-spacing: -0.035em; margin: 0 0 16px; max-width: 20ch; }
.intro { font-size: 1.18rem; max-width: var(--measure); margin: 0 0 30px; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 48px; align-items: start; }
.groups { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: 14px; overflow: hidden; margin: 0 0 36px; font-size: 0.95rem; }
.groups th, .groups td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.groups thead th { font: 600 0.84rem/1.2 var(--display); color: var(--muted); background: var(--paper); }
.groups tbody tr:last-child td { border-bottom: 0; }
.groups tbody th { font: 700 1rem/1.3 var(--display); }
.groups small { display: block; color: var(--muted); font-weight: 400; font-family: var(--body); font-size: 0.85rem; margin-top: 2px; }
.prose { max-width: var(--measure); }
.prose h2 { font: 700 1.5rem/1.25 var(--display); letter-spacing: -0.01em; margin: 40px 0 12px; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose ul { margin: 0 0 12px; }
.prose ul { padding-left: 1.2em; }
.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; }
.steps li { counter-increment: s; position: relative; padding: 0 0 22px 52px; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--bordo); color: var(--bordo-ink); font: 700 0.95rem/1 var(--display); }
.steps li::after { content: ''; position: absolute; left: 17px; top: 40px; bottom: 4px; width: 2px; background: var(--line); }
.steps li:last-child::after { display: none; }
.steps h3 { font: 700 1.12rem/1.3 var(--display); margin: 5px 0 4px; }
.steps p { margin: 0; }
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; }
.tabs button { font: 600 0.92rem/1.2 var(--display); border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); border-radius: 999px; padding: 8px 14px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.kv { display: grid; grid-template-columns: 11rem 1fr; gap: 10px 18px; margin: 0; }
.kv dt { font-weight: 700; }
.kv dd { margin: 0; }
.unsure { background: var(--warn-bg); color: var(--warn-ink); border-radius: 12px; padding: 16px 18px; margin-top: 28px; }
.unsure h2 { margin: 0 0 6px; font-size: 1.1rem; }
.unsure ul { margin: 0; padding-left: 1.2em; }
.aside { position: sticky; top: 18px; display: grid; gap: 16px; }
.card { background: var(--surface); border-radius: 16px; overflow: hidden; box-shadow: 0 1px 0 var(--line); }
.card-head { background: var(--bordo); color: var(--bordo-ink); padding: 12px 18px; font: 600 0.92rem/1.2 var(--display); }
.card-body { padding: 16px 18px 18px; font-size: 0.95rem; }
.card-body p { margin: 0 0 10px; }
.card-body select { width: 100%; font: inherit; padding: 9px 10px; border-radius: 9px; border: 1.5px solid var(--line); background: var(--paper); color: var(--ink); min-height: 44px; }
.sources { font-size: 0.95rem; }
.sources ul { padding-left: 1.2em; margin: 0; }
.checked { color: var(--muted); font-size: 0.9rem; }

footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 0.9rem; }
footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
footer p { margin: 0 0 6px; max-width: 64ch; }
footer a { color: var(--muted); }

@media (max-width: 960px) {
  .strip { grid-template-columns: 1fr 1fr; }
  .strip .plane { display: none; }
  .strip .go { grid-column: 1 / -1; }
  .result { grid-template-columns: 1fr; }
  .result-side { border-left: 0; border-top: 2px dashed var(--line); }
  .result-side::before { top: -13px; left: -12px; } .result-side::after { top: -13px; bottom: auto; left: auto; right: -12px; }
  .process { grid-template-columns: 1fr 1fr; }
  .layout { grid-template-columns: 1fr; }
  .aside { position: static; }
  .facts { grid-template-columns: 1fr 1fr; gap: 10px 16px; }
}
@media (max-width: 600px) {
  .hero { padding-top: 28px; }
  .strip { grid-template-columns: 1fr; padding: 14px; }
  .species { width: 100%; } .species label { flex: 1; }
  .atlas { margin: 14px -16px 0; }
  .process { grid-template-columns: 1fr; }
  .dates { grid-template-columns: 1fr; }
  .timeline li { flex-direction: column; gap: 0; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dd { margin-bottom: 10px; }
  .top nav .hide-sm { display: none; }
  .groups thead { display: none; }
  .groups, .groups tbody, .groups tr, .groups th, .groups td { display: block; width: 100%; }
  .groups td[data-k]::before { content: attr(data-k) ': '; color: var(--muted); }
  .groups td, .groups th { border: 0; padding: 3px 14px; }
  .groups tr { border-bottom: 1px solid var(--line); padding: 10px 0; }
}
@media (prefers-reduced-motion: reduce) {
  .stamp.hit { animation: none; }
  .atlas .c { transition: none; }
}
.card .species label { flex: 1; }