:root {
  --ground: #121316;
  --ground-glow: #23262d;
  --panel-top: #25282f;
  --panel-bottom: #191b20;
  --field: #1b1d22;
  --well: #101114;
  --rule: #2a2d33;
  --outline: #33363d;
  --ink: #f1f2f4;
  --muted: #a3a9b4;
  --faint: #878d98;
  --red: #d71920;
  --red-top: #f0353c;
  --red-low: #b61218;
  --red-bottom: #cf1920;
  --flap-top: #34373f;
  --flap-mid: #2a2d34;
  --flap-low: #1f2126;
  --flap-bottom: #2a2c33;
  --hinge: #0b0c0e;
  --amber: #ffc247;
  --green: #3ddc84;

  --display: 'Barlow Condensed', 'Noto Sans TC', sans-serif;
  --text: 'Barlow', 'Noto Sans TC', system-ui, sans-serif;
  --gutter: clamp(56px, 7vw, 112px);
  --edge: clamp(16px, 4vw, 64px);
  --bar: 72px;
  color-scheme: dark;
}

:lang(zh-HK) {
  --display: 'Noto Sans TC', 'Barlow Condensed', sans-serif;
  --text: 'Noto Sans TC', 'Barlow', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  background: var(--ground);
  overflow-x: clip;
  scrollbar-color: var(--outline) var(--ground);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(120% 70% at 50% -10%, var(--ground-glow) 0%, transparent 60%),
    var(--ground);
  color: var(--ink);
  font: 400 18px/1.55 var(--text);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--amber); color: #231700; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 6px;
}

img, video, svg { display: block; }

.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

/* ---------- stage, bar, line ---------- */

#stage {
  position: fixed; inset: 0;
  width: 100vw; height: 100vh;
  z-index: 1;
  pointer-events: none;
}

.bar {
  position: fixed; inset: 0 0 auto 0;
  z-index: 20;
  height: var(--bar);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--edge) 0 calc(var(--edge) * 0.75);
  background: var(--ground);
}
.bar::after {
  content: ''; position: absolute; left: 0; right: 0; top: 100%; height: 28px;
  background: linear-gradient(var(--ground), rgb(18 19 22 / 0)); pointer-events: none;
}

.brand {
  display: flex; align-items: center; gap: 16px;
  color: var(--ink); text-decoration: none;
}
.brand img { width: 54px; height: 54px; border-radius: 13px; box-shadow: 0 4px 14px rgb(0 0 0 / 0.45); }
.wordmark {
  font: 600 35px/1 'Barlow Condensed', sans-serif;
  letter-spacing: 0.3em;
}

.lang { display: flex; align-items: center; gap: 12px; color: var(--faint); font: 500 23px/1 var(--display); }
.lang button {
  appearance: none; border: 0; background: none; cursor: pointer;
  color: var(--faint); font: inherit; letter-spacing: 0.08em;
  min-width: 44px; min-height: 44px; padding: 0 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.lang button:hover { color: var(--ink); }
.lang button[aria-pressed="true"] { color: var(--ink); border-color: var(--red); }
.lang button[lang] { font-family: 'Noto Sans TC', sans-serif; font-weight: 500; }

.line {
  position: absolute; left: 0; top: 0;
  width: var(--gutter);
  z-index: 3;
  overflow: visible;
  pointer-events: none;
}
.line .track { stroke: #3a1013; stroke-width: 5; fill: none; }
.line .lit {
  stroke: var(--red); stroke-width: 5; fill: none;
  filter: drop-shadow(0 0 6px rgb(255 40 48 / 0.8)) drop-shadow(0 0 18px rgb(215 25 32 / 0.55));
}
.line .dot { fill: var(--ground); stroke: #5a1a1d; stroke-width: 4; transition: stroke 0.35s, fill 0.35s; }
.line .dot.passed { stroke: var(--red); }
.line .dot.small { stroke-width: 3.5; }
.line .dot.terminal { stroke-width: 6; }
.line .dot.here { stroke: var(--amber); fill: var(--amber); }
.line .halo { fill: none; stroke: var(--amber); stroke-width: 2; opacity: 0; transition: opacity 0.35s; }
.line .dot.here + .halo { opacity: 0.5; }
.line .seq { fill: var(--faint); font: 600 17px/1 'Barlow Condensed', sans-serif; text-anchor: end; }
.line .tick { fill: #5a1a1d; transition: fill 0.3s; }
.line .tick.passed { fill: var(--red); }

main { position: relative; z-index: 2; }

/* ---------- split flaps ---------- */

.flaps { display: flex; gap: var(--gap, 6px); --h: 64px; }

.tile {
  position: relative;
  width: calc(var(--h) * 0.68); height: var(--h);
  font: 600 calc(var(--h) * 0.86)/var(--h) 'Barlow Condensed', 'Noto Sans TC', sans-serif;
  font-variant-numeric: tabular-nums;
  text-align: center;
  perspective: calc(var(--h) * 5);
  border-radius: calc(var(--h) * 0.09);
  box-shadow: 0 calc(var(--h) * 0.06) calc(var(--h) * 0.14) rgb(0 0 0 / 0.5);
}
.tile.wide { width: var(--h); font-size: calc(var(--h) * 0.6); }
.half, .leaf {
  position: absolute; left: 0; right: 0; height: 50%;
  overflow: hidden;
  backface-visibility: hidden;
}
.half > span, .leaf > span { position: absolute; left: 0; right: 0; height: var(--h); }
.half.top, .leaf.top {
  top: 0; border-radius: calc(var(--h) * 0.09) calc(var(--h) * 0.09) 0 0;
  transform-origin: 50% 100%;
}
.half.bottom, .leaf.bottom {
  bottom: 0; border-radius: 0 0 calc(var(--h) * 0.09) calc(var(--h) * 0.09);
  transform-origin: 50% 0;
}
.half.bottom > span, .leaf.bottom > span { top: calc(var(--h) * -0.5); }
.leaf { z-index: 2; }
.leaf.bottom { transform: rotateX(90deg); }
.tile::after {
  content: ''; position: absolute; left: 0; right: 0; z-index: 3;
  height: max(2px, calc(var(--h) * 0.034)); top: calc(50% - max(1px, var(--h) * 0.017));
  background: var(--hinge);
}
.tile::before {
  content: ''; position: absolute; z-index: 4;
  left: -3%; right: -3%; height: max(4px, calc(var(--h) * 0.075)); top: calc(50% - max(2px, var(--h) * 0.0375));
  background:
    linear-gradient(var(--hinge), var(--hinge)) left / 7% 100% no-repeat,
    linear-gradient(var(--hinge), var(--hinge)) right / 7% 100% no-repeat;
  border-radius: 2px;
}

.amber .tile, .white .tile, .green .tile { color: var(--amber); }
.white .tile { color: var(--ink); }
.green .tile { color: var(--green); }
.amber .half.top, .amber .leaf.top, .white .half.top, .white .leaf.top, .green .half.top, .green .leaf.top {
  background: linear-gradient(var(--flap-top), var(--flap-mid));
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.06);
}
.amber .half.bottom, .amber .leaf.bottom, .white .half.bottom, .white .leaf.bottom, .green .half.bottom, .green .leaf.bottom {
  background: linear-gradient(var(--flap-low), var(--flap-bottom));
}
.red .tile { color: #fff; }
.red .half.top, .red .leaf.top {
  background: linear-gradient(var(--red-top), var(--red));
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.18);
}
.red .half.bottom, .red .leaf.bottom { background: linear-gradient(var(--red-low), var(--red-bottom)); }
.dim .tile { color: var(--faint); }

/* ---------- hero ---------- */

section { position: relative; }

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  align-items: center;
  gap: 24px;
  padding: calc(var(--bar) + 8px) var(--edge) 24px calc(var(--gutter) + 40px);
}

.hero-flap { display: flex; align-items: center; gap: clamp(20px, 2.4vw, 36px); margin-bottom: clamp(12px, 1.6vh, 20px); }

.flap-giant { --h: clamp(180px, 27vh, 300px); perspective: 1400px; }
.flap-giant .flaps { --gap: 0px; --h: clamp(180px, 27vh, 300px); }
.flap-giant .tile {
  width: calc(var(--h) * 0.82);
  font-size: calc(var(--h) * 0.92);
  border-radius: calc(var(--h) * 0.075);
  box-shadow:
    0 calc(var(--h) * 0.08) calc(var(--h) * 0.22) rgb(0 0 0 / 0.55),
    0 calc(var(--h) * 0.02) calc(var(--h) * 0.04) rgb(0 0 0 / 0.4);
}
.flap-giant .tile::after { height: calc(var(--h) * 0.026); top: calc(50% - var(--h) * 0.013); }
.flap-giant .tile::before { left: -2.5%; right: -2.5%; height: calc(var(--h) * 0.056); top: calc(50% - var(--h) * 0.028); background-size: 4.5% 100%, 4.5% 100%; }
.flap-tilt { transform-style: preserve-3d; transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1); }

.route-label {
  margin: 0;
  display: grid; gap: 8px;
  font: 600 clamp(22px, 2.3vw, 37px)/1 var(--display);
  letter-spacing: 0.1em;
  color: #c1c6cf;
}
.route-label .arrow { font-family: system-ui, sans-serif; letter-spacing: 0; }
:lang(zh-HK) .route-label { letter-spacing: 0.08em; }

h1, h2 { text-wrap: balance; margin: 0; white-space: pre-line; }
:lang(zh-HK) h1, :lang(zh-HK) h2 { word-break: keep-all; overflow-wrap: anywhere; }

h1 {
  font: 600 clamp(48px, 5.6vw, 92px)/0.98 var(--display);
  letter-spacing: -0.005em;
  margin-bottom: 10px;
  max-width: 13ch;
}
:lang(zh-HK) h1 { font-weight: 900; letter-spacing: 0.02em; line-height: 1.14; max-width: 7.5em; font-size: clamp(40px, 4.6vw, 76px); }
@media (min-width: 1100px) { :lang(en) h1 { max-width: none; white-space: nowrap; } }

.lede { margin: 0 0 clamp(20px, 3vh, 34px); max-width: 62ch; color: #b6bdc8; font: 500 clamp(19px, 1.65vw, 25px)/1.3 'Barlow Condensed', 'Noto Sans TC', sans-serif; letter-spacing: 0.01em; }
:lang(zh-HK) .lede { font-family: 'Noto Sans TC', sans-serif; font-size: clamp(17px, 1.3vw, 21px); line-height: 1.6; }

.hero-stop { display: grid; gap: 10px; }
.stop-name { margin: 0; font: 600 clamp(24px, 2vw, 31px)/1.1 var(--display); }
.next-stops { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 0; }
.next-stops li { font: 500 clamp(19px, 1.6vw, 24px)/1 var(--display); color: var(--muted); height: 37px; display: flex; align-items: center; }
:lang(zh-HK) .next-stops li { font-family: 'Noto Sans TC', sans-serif; font-size: 18px; }
.live-eta { display: flex; align-items: center; gap: 16px; }
.live-eta .flaps { --h: clamp(66px, 9vh, 92px); --gap: 8px; }
.eta-side { display: grid; gap: 6px; }
.eta-unit { font: 500 clamp(26px, 2.3vw, 36px)/1 var(--display); color: var(--muted); }
.eta-then { font: 500 17px/1 var(--display); letter-spacing: 0.04em; color: var(--faint); min-height: 17px; }
.live-note { margin: 0; display: flex; align-items: center; gap: 10px; color: var(--faint); font: 500 16px/1.2 var(--display); letter-spacing: 0.06em; min-height: 20px; }

.lamp { width: 10px; height: 10px; border-radius: 50%; background: #2b5a40; flex: none; }
.lamp.on { background: var(--green); box-shadow: 0 0 10px rgb(61 220 132 / 0.7); animation: lamp 2.4s ease-in-out infinite; }
.lamp.off { background: #5a1a1d; }
@keyframes lamp { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ---------- phone slots ---------- */

.phone-slot {
  position: relative;
  height: min(78vh, 760px);
  aspect-ratio: 0.49;
  justify-self: center;
}
.hero .phone-slot { height: min(98vh, 1040px); margin-top: 2vh; align-self: start; }

.phone-dom {
  position: absolute; inset: 0;
  border-radius: 13% / 6%;
  padding: 3.2%;
  background: linear-gradient(145deg, #3b3f46, #121316 45%, #26292f);
  box-shadow: 0 40px 80px rgb(0 0 0 / 0.6), inset 0 0 0 1px rgb(255 255 255 / 0.08);
  transform: perspective(1600px) rotateY(calc(var(--turn, 0) * 1rad)) rotateZ(1deg);
}
.phone-dom video { width: 100%; height: 100%; object-fit: cover; border-radius: 10.5% / 5%; background: var(--ground); }
@media (min-width: 901px) { html.gl .phone-dom { visibility: hidden; } }
.phone-still { position: absolute; top: -3.5%; left: -16.6%; width: 133.2%; height: auto; max-width: none; pointer-events: none; }
html.js:not(.gl):not(.no-gl) .hero .phone-dom { visibility: hidden; }
html.gl .phone-still, html.no-gl .phone-still, html:not(.js) .phone-still { display: none; }

/* ---------- chapters ---------- */

.chapter {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: clamp(32px, 6vw, 112px);
  padding: 96px var(--edge) 96px calc(var(--gutter) + 40px);
}
.chapter.board, .chapter.langs { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); }
.chapter.langs { grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); }
.chapter.langs .lang-board { justify-self: center; }

.chapter-copy { max-width: 620px; }
.chapter-copy.wide { max-width: none; }
.chapter h2, .ride h2, .terminus h2 {
  font: 600 clamp(40px, 4.4vw, 72px)/1 var(--display);
  margin-bottom: 20px;
}
:lang(zh-HK) .chapter h2, :lang(zh-HK) .ride h2, :lang(zh-HK) .terminus h2 { font-weight: 900; line-height: 1.15; }
.chapter p, .ride p, .terminus p { color: var(--muted); max-width: 46ch; margin: 0 0 28px; font-size: clamp(17px, 1.25vw, 20px); }

/* search demo */
.try { display: grid; gap: 14px; min-width: 0; }
.try-field {
  display: flex; align-items: center; gap: 14px;
  height: 68px; padding: 0 22px;
  background: var(--field);
  border: 1px solid var(--outline);
  border-radius: 18px;
  box-shadow: inset 0 2px 6px rgb(0 0 0 / 0.35);
  transition: border-color 0.2s;
}
.try-field:focus-within { border-color: var(--amber); }
.try-field svg { width: 24px; height: 24px; fill: none; stroke: var(--faint); stroke-width: 2; stroke-linecap: round; }
.try-field input {
  flex: 1; min-width: 0; width: 100%; height: 100%;
  border: 0; outline: 0; background: none;
  color: var(--ink); caret-color: var(--amber);
  font: 600 28px/1 var(--display); letter-spacing: 0.08em; text-transform: uppercase;
}
.try-field input::placeholder { color: var(--faint); text-transform: none; letter-spacing: 0.02em; font-weight: 500; font-size: 22px; }

.results, .board-rows { list-style: none; margin: 0; padding: 0; }
.results {
  border-radius: 18px; overflow: hidden;
  background: linear-gradient(var(--panel-top), var(--panel-bottom));
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.06), 0 18px 40px rgb(0 0 0 / 0.4);
}
.results:empty { display: none; }
.results li {
  display: grid; grid-template-columns: 112px 1fr; align-items: center; gap: 12px;
  padding: 12px 20px; min-height: 72px;
  border-top: 1px solid var(--rule);
}
.results li:first-child { border-top: 0; }
.results .flaps { --h: 40px; --gap: 4px; }
.results .dest { font: 600 21px/1.15 var(--display); }
.results .orig { font: 500 16px/1.2 var(--text); color: var(--faint); }
.results .none { display: block; padding: 20px; color: var(--muted); }

/* live board */
.panel {
  border-radius: 22px; overflow: hidden;
  background: linear-gradient(var(--panel-top), var(--panel-bottom));
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.07), 0 28px 60px rgb(0 0 0 / 0.5);
}
.panel-head { display: flex; align-items: center; gap: 14px; padding: 20px 24px; border-bottom: 1px solid var(--rule); }
.panel-title { flex: 1; font: 600 22px/1.15 var(--display); letter-spacing: 0.04em; }
.panel-clock { font: 600 30px/1 'Barlow Condensed', sans-serif; font-variant-numeric: tabular-nums; }
.board-cols {
  display: grid; grid-template-columns: 132px 1fr auto; gap: 12px;
  padding: 12px 24px; border-bottom: 1px solid var(--rule);
  font: 500 16px/1 var(--display); letter-spacing: 0.06em; color: var(--faint);
}
.board-rows li {
  display: grid; grid-template-columns: 132px 1fr auto; align-items: center; gap: 12px;
  padding: 12px 24px; min-height: 86px;
  border-top: 1px solid var(--rule);
}
.board-rows li:first-child { border-top: 0; }
.board-rows .route .flaps { --h: 40px; --gap: 4px; }
.board-rows .dest { font: 600 21px/1.2 var(--display); }
.board-rows .mins { display: grid; justify-items: end; gap: 6px; }
.board-rows .mins .flaps { --h: 52px; --gap: 5px; }
.board-rows .then { font: 500 15px/1 var(--display); color: var(--faint); letter-spacing: 0.04em; }
.board-note { margin: 0 !important; padding: 16px 24px; font: 500 16px/1.3 var(--display) !important; color: var(--faint) !important; }
.board-note:empty { display: none; }

/* languages */
.lang-board {
  margin-top: 12px; display: grid; gap: clamp(10px, 1.4vw, 18px);
  padding: clamp(18px, 2.4vw, 32px); border-radius: 24px; width: fit-content; max-width: 100%;
  background: linear-gradient(var(--panel-top), var(--panel-bottom));
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.07), 0 28px 60px rgb(0 0 0 / 0.5);
}
.lang-row { display: flex; align-items: center; gap: clamp(14px, 1.6vw, 24px); }
.lang-tag { width: 2.2em; font: 600 clamp(16px, 1.4vw, 22px)/1 var(--display); letter-spacing: 0.1em; color: var(--faint); }
.lang-tag[lang] { font-family: 'Noto Sans TC', sans-serif; }
.lang-board .flaps { --h: clamp(40px, 4.2vw, 76px); --gap: clamp(3px, 0.35vw, 5px); flex-wrap: nowrap; }

/* ---------- the ride (3D map) ---------- */

.ride { height: 400vh; }
.ride-sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; }
.ride-fade { position: absolute; left: 0; right: 0; height: 22vh; z-index: 1; pointer-events: none; }
.ride-fade.top { top: 0; background: linear-gradient(var(--ground), rgb(18 19 22 / 0)); }
.ride-fade.bottom { bottom: 0; background: linear-gradient(rgb(18 19 22 / 0), var(--ground)); }

.ride-captions { position: absolute; left: calc(var(--gutter) + 40px); bottom: 14vh; z-index: 2; width: min(560px, calc(100vw - var(--gutter) - 72px)); }
.caption { position: absolute; left: 0; bottom: 0; opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
.caption.on { opacity: 1; transform: none; }
.caption p { text-shadow: 0 1px 2px var(--ground), 0 2px 16px var(--ground); color: #c9ced6; }
.ride-captions::before {
  content: ''; position: absolute; left: -12vw; bottom: -14vh; width: 120%; height: 60vh; min-width: 640px;
  background: radial-gradient(closest-side, rgb(18 19 22 / 0.95) 45%, rgb(18 19 22 / 0));
  pointer-events: none;
}
.caption h2 { text-shadow: 0 4px 28px var(--ground); }
html:not(.js) .caption { position: static; opacity: 1; transform: none; }

.ride-now {
  position: absolute; z-index: 2; right: var(--edge); top: calc(var(--bar) + 24px);
  margin: 0 !important; text-align: right;
  font: 600 18px/1.3 var(--display) !important; letter-spacing: 0.12em; color: var(--ink) !important;
  text-transform: uppercase;
}
.ride-now small { display: block; color: var(--faint); font-size: 15px; letter-spacing: 0.08em; }
:lang(zh-HK) .ride-now { letter-spacing: 0.06em; }

.ride-tags { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.tag {
  position: absolute; left: 0; top: 0;
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px 6px 8px;
  background: rgb(16 17 20 / 0.88);
  border: 1px solid var(--outline);
  border-radius: 10px;
  white-space: nowrap;
  font: 600 15px/1 var(--display);
  color: var(--ink);
  box-shadow: 0 8px 20px rgb(0 0 0 / 0.5);
  transform-origin: 50% 100%;
  opacity: 0;
  transition: opacity 0.4s;
  will-change: transform;
}
.tag.show { opacity: 1; }
.tag .flaps { --h: 26px; --gap: 3px; }
.tag .tag-name { max-width: 190px; overflow: hidden; text-overflow: ellipsis; }
.tag::after {
  content: ''; position: absolute; left: 50%; bottom: -7px; width: 12px; height: 12px;
  background: inherit; border: inherit; border-width: 0 1px 1px 0; transform: translateX(-50%) rotate(45deg);
}

.ride-fallback { display: none; position: absolute; right: var(--edge); bottom: 14vh; max-width: 30ch; z-index: 2; }
html.no-gl .ride-fallback { display: block; }
html.no-gl .ride { height: auto; }
html.no-gl .ride-sticky { position: relative; height: auto; padding: 96px 0 160px; }
html.no-gl .ride-captions { position: relative; left: auto; bottom: auto; padding-left: calc(var(--gutter) + 40px); display: grid; gap: 48px; }
html.no-gl .caption { position: static; opacity: 1; transform: none; }

/* ---------- terminus, footer ---------- */

.terminus {
  min-height: 100svh;
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); align-items: center;
  gap: clamp(32px, 6vw, 112px);
  padding: 96px var(--edge) 64px calc(var(--gutter) + 40px);
}
.dest-blind { margin-bottom: 28px; }
.dest-blind .flaps { --h: clamp(48px, 5.4vw, 92px); --gap: clamp(3px, 0.4vw, 6px); }
.terminus h2 { font-size: clamp(56px, 8vw, 132px); }
.terminus-icon { margin-top: 24px; width: clamp(96px, 9vw, 132px); height: auto; border-radius: 22%; box-shadow: 0 24px 60px rgb(0 0 0 / 0.55), 0 8px 18px rgb(0 0 0 / 0.4); }

.foot {
  position: relative; z-index: 2;
  padding: 32px var(--edge) 48px calc(var(--gutter) + 40px);
  border-top: 1px solid var(--rule);
  color: var(--faint);
  font-size: 15px;
}
.foot p { margin: 0 0 6px; max-width: 90ch; }

/* ---------- small screens ---------- */

@media (max-width: 900px) {
  :root { --gutter: 40px; --bar: 64px; }
  body { font-size: 17px; }
  .wordmark { font-size: 21px; letter-spacing: 0.26em; }
  .brand img { width: 38px; height: 38px; }
  .hero, .chapter, .chapter.board {
    grid-template-columns: minmax(0, 1fr);
    padding: calc(var(--bar) + 16px) 16px 64px calc(var(--gutter) + 16px);
    gap: 40px;
  }
  .hero { padding-top: calc(var(--bar) + 28px); }
  .hero .phone-slot { margin-top: 0; }
  .chapter { padding-top: 72px; }
  .chapter.board .phone-slot, .chapter.search .phone-slot, .chapter.saved .phone-slot { order: 2; }
  .flap-giant, .flap-giant .flaps { --h: 150px; }
  .route-label { font-size: 21px; }
  h1 { font-size: clamp(44px, 12vw, 60px); }
  .phone-slot, .hero .phone-slot { height: min(78vh, 620px); justify-self: center; }
  .results li { grid-template-columns: 88px 1fr; padding: 12px 16px; }
  .results .flaps { --h: 34px; }
  .board-cols, .board-rows li { grid-template-columns: 92px 1fr auto; padding-left: 16px; padding-right: 16px; }
  .board-rows .route .flaps { --h: 32px; --gap: 3px; }
  .board-rows .mins .flaps { --h: 44px; }
  .board-rows .dest { font-size: 19px; }
  .panel-head { padding: 16px; }
  .lang-board .flaps { --h: clamp(24px, 6.4vw, 40px); --gap: 2px; }
  .lang-board { padding: 14px; }
  .ride-captions { left: calc(var(--gutter) + 16px); width: calc(100vw - var(--gutter) - 32px); bottom: 10vh; }
  .ride-now { top: calc(var(--bar) + 12px); font-size: 15px !important; }
  .terminus, .foot { padding-left: calc(var(--gutter) + 16px); padding-right: 16px; }
  .terminus, .chapter.langs { grid-template-columns: minmax(0, 1fr); }
  .dest-blind .flaps { --h: clamp(26px, 7vw, 44px); --gap: 2px; }
  .tag .tag-name { max-width: 120px; }
  .line .seq { display: none; }
  .ride-captions::before { min-width: 0; left: -40px; width: calc(100% + 80px); height: 76vh; bottom: -12vh; }
}

@media (prefers-reduced-motion: reduce) {
  .caption, .tag, .flap-tilt, .lang button { transition: none; }
  .lamp.on { animation: none; }
}