:root {
  --paper: #e8ece6;
  --ink: #141618;
  --mute: #5c6460;
  --yellow: #f0d33a;
  --river: #2f5d78;
  --soot: #1b1e22;
  --ticket: #f7f4ea;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Public Sans", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}
.board {
  overflow: hidden;
  background: var(--soot);
  color: var(--yellow);
  border-bottom: 6px solid var(--yellow);
}
.tape {
  display: flex; gap: 48px;
  padding: 8px 0;
  white-space: nowrap;
  font-family: "Big Shoulders Display", sans-serif;
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 0.95rem;
  animation: roll 28s linear infinite;
}
@keyframes roll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.tower {
  position: sticky; top: 0; z-index: 20;
  display: grid;
  grid-template-areas: "call slot nav";
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px 16px;
  padding: 10px 4vw;
  background: var(--yellow);
}
.call {
  grid-area: call;
  font-family: "Big Shoulders Display", sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.04em;
}
.call strong { color: var(--river); }
.slot {
  grid-area: slot;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--soot);
}
#nav { grid-area: nav; display: flex; flex-wrap: wrap; gap: 6px 12px; justify-content: flex-end; }
#nav a { color: var(--ink); text-decoration: none; font-weight: 700; font-size: 0.82rem; }
#nav a:hover { text-decoration: underline; }
#menu {
  grid-area: menu;
  display: none;
  background: var(--soot); color: var(--yellow); border: 0;
  padding: 8px 12px; font: inherit; font-weight: 700; cursor: pointer;
}
.runway { padding: 56px 5vw 40px; max-width: 920px; }
.gate {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--river);
}
h1 {
  font-family: "Big Shoulders Display", sans-serif;
  font-size: clamp(3.4rem, 9vw, 7rem);
  line-height: 0.9;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 8px 0 16px;
}
h1 em { color: var(--river); font-style: normal; }
.lede { color: var(--mute); max-width: 64ch; margin-bottom: 22px; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; }
.go, form button {
  background: var(--soot); color: var(--yellow);
  text-decoration: none; border: 0;
  padding: 12px 18px; font: inherit; font-weight: 700; cursor: pointer;
}
.hold { color: var(--river); font-weight: 700; padding: 12px 8px; }
.dials {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 140px);
  gap: 16px;
  margin-top: 36px;
}
.dials b {
  display: block;
  font-family: "Big Shoulders Display", sans-serif;
  font-size: 2.6rem;
  line-height: 1;
}
.bay { padding: 56px 5vw; }
.bay.night { background: var(--soot); color: #e8ece6; }
.bay.night .lead, .bay.night p { color: #b8c0b8; }
.bay.river { background: var(--river); color: #eef4f7; }
.bay.river p, .bay.river .lead { color: #d5e4ec; }
h2 {
  font-family: "Big Shoulders Display", sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
h3 { font-family: "Big Shoulders Display", sans-serif; font-size: 1.4rem; margin-bottom: 8px; }
.lead, .split p { margin-bottom: 14px; max-width: 66ch; color: var(--mute); }
.split { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 28px; }
.ticket {
  background: var(--ticket);
  color: var(--ink);
  padding: 18px 18px 8px;
  border-left: 10px dashed var(--soot);
}
.ticket ul, .steps { margin-left: 18px; }
.ticket li, .steps li { margin: 8px 0; }
.hangar { padding: 0 0 40px; background: #dfe6dc; }
.tabs {
  display: flex; flex-wrap: wrap;
  background: var(--soot);
}
.tabs button {
  flex: 1;
  background: transparent; color: var(--yellow);
  border: 0; border-right: 1px solid #333;
  padding: 14px 10px; font: inherit; font-weight: 700; cursor: pointer;
}
.tabs button.on { background: var(--yellow); color: var(--ink); }
.slots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: #c5ccc0;
}
.slots article {
  background: var(--paper);
  padding: 22px;
  min-height: 220px;
}
.slots article.hide { display: none; }
.fn {
  font-family: "Big Shoulders Display", sans-serif;
  font-weight: 800;
  color: var(--river);
  letter-spacing: 0.08em;
}
.routes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.routes article {
  background: #fff;
  padding: 16px;
  border-top: 8px solid var(--yellow);
}
.log { list-style: none; display: grid; gap: 16px; max-width: 70ch; }
.log time {
  font-family: "Big Shoulders Display", sans-serif;
  font-size: 1.3rem;
  color: var(--river);
}
details { padding: 12px 0; border-bottom: 2px solid rgba(20, 22, 24, 0.12); }
.bay.night details { border-bottom-color: #333; }
summary { cursor: pointer; font-weight: 700; }
a { color: var(--river); }
.bay.night a, .bay.river a, .desk a { color: var(--yellow); }
.desk {
  display: grid; grid-template-columns: 1fr 1fr; gap: 28px;
  padding: 56px 5vw;
  background: var(--yellow);
}
.legal { font-size: 0.92rem; }
form { display: grid; gap: 12px; }
label { display: grid; gap: 6px; font-weight: 700; }
input, select, textarea {
  border: 3px solid var(--ink); background: var(--paper);
  padding: 10px; font: inherit;
}
footer { padding: 18px 5vw 32px; }
footer a { color: var(--river); }
@media (max-width: 900px) {
  .tower {
    grid-template-areas:
      "call menu"
      "slot slot"
      "nav nav";
    grid-template-columns: 1fr auto;
  }
  #menu { display: inline-block; }
  #nav { display: none; flex-direction: column; justify-content: flex-start; }
  #nav.open { display: flex; }
  .split, .slots, .routes, .desk, .dials { grid-template-columns: 1fr; }
}