/* ELEVATE in Amsterdam — design system v3 (2026-10-11).
   Home: one 3D city behind the whole page, chapters fly to each work package.
   Work packages: light editorial story pages, a sticky figure with short cards over it.
   Serif display and prose, a sans for interface, a mono for labels and measurements. One accent, canal green. */

@font-face { font-family: "Source Serif 4"; src: url(fonts/source-serif-4.woff2) format("woff2"); font-weight: 200 900; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url(fonts/source-serif-4-italic.woff2) format("woff2"); font-weight: 200 900; font-style: italic; font-display: swap; }
@font-face { font-family: "Public Sans"; src: url(fonts/public-sans.woff2) format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url(fonts/jetbrains-mono.woff2) format("woff2"); font-weight: 100 800; font-display: swap; }

:root {
  --serif: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --paper: #f6f7f5;
  --card: #ffffff;
  --ink: #15191c;
  --ink-2: #353d44;
  --muted: #5f6a73;
  --rule: #d9dfe1;
  --panel: #edf0ef;
  --accent: #0d6b63;
  --accent-soft: #dcebe8;
  --bike: #2f4f86;
  --amber: #a85d00;
  --amber-glow: #ffb547;
  --night: #0a0f12;
  --night-2: #111a1f;
  --night-3: #1a252b;
  --night-ink: #eef2f3;
  --night-muted: #9cadb5;
  --night-rule: rgba(255, 255, 255, 0.14);
  --glow: #63d6c4;
  --shadow: 0 1px 2px rgba(15, 25, 30, 0.06), 0 10px 30px rgba(15, 25, 30, 0.10);
  --wide: 1240px;
  --measure: 62ch;
  --radius: 4px;
  --gutter: max(1.25rem, calc((100vw - var(--wide)) / 2 + 1.25rem));
  --tiles: grayscale(1) brightness(1.1) contrast(0.78);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scrollbar-color: var(--rule) var(--paper); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.125rem/1.62 var(--serif); font-optical-sizing: auto; }
::selection { background: var(--accent); color: #fff; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
img { max-width: 100%; height: auto; }
button { font: inherit; }

/* ---------- labels, numbers, small type ---------- */
.label { font: 500 0.72rem/1.4 var(--mono); letter-spacing: 0.13em; text-transform: uppercase; color: var(--accent); }
.label .sep { opacity: 0.55; margin: 0 0.45em; }
.mono { font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.02em; }
.caption { font: 400 0.74rem/1.5 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.muted { color: var(--muted); }
.status { display: inline-block; font: 500 0.7rem/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; padding: 0.38rem 0.6rem; border: 1px solid currentColor; border-radius: 999px; color: var(--accent); white-space: nowrap; vertical-align: middle; }
.status[data-status="synthetic"], .status[data-status="hypothetical"], .status[data-status="idea"] { color: var(--amber); border-style: dashed; }
.on-dark .status { color: var(--glow); }
.on-dark .status[data-status="synthetic"], .on-dark .status[data-status="hypothetical"], .on-dark .status[data-status="idea"] { color: var(--amber-glow); }

/* ---------- top bar ---------- */
.topbar { position: fixed; inset: 0 0 auto 0; z-index: 1000; transition: background-color 0.35s, color 0.35s, border-color 0.35s; border-bottom: 1px solid var(--rule); background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(8px); color: var(--ink); }
.topbar .bar { max-width: var(--wide); margin: 0 auto; padding: 0.7rem 1.25rem; display: flex; align-items: center; gap: 1rem; }
.topbar .mark { display: flex; flex: none; align-items: center; gap: 0.65rem; text-decoration: none; color: inherit; white-space: nowrap; }
.topbar .mark::before { content: ""; width: 1.6rem; height: 2px; background: var(--accent); }
.topbar .mark span { font: 500 0.76rem/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; }
.topbar .back { flex: none; font: 500 0.76rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: inherit; text-decoration: none; padding: 0.5rem 0.7rem; border: 1px solid var(--rule); border-radius: 999px; }
.topbar .back:hover { border-color: var(--accent); color: var(--accent); }
.topbar nav { display: flex; gap: 0.15rem; margin-left: auto; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.topbar nav a { font: 500 0.86rem/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: inherit; opacity: 0.6; text-decoration: none; padding: 0.55rem 0.6rem; white-space: nowrap; }
.topbar nav a:hover { opacity: 1; }
.topbar nav a[aria-current="page"], .topbar nav a.here { opacity: 1; box-shadow: inset 0 -2px 0 var(--accent); }
.topbar nav .asknav { margin-left: 0.5rem; opacity: 1; color: var(--accent); border: 1px solid currentColor; border-radius: 999px; padding: 0.5rem 0.8rem; letter-spacing: 0.06em; }
.topbar nav .asknav .s { display: none; }
.topbar nav .asknav:hover, .topbar nav .asknav[aria-current="page"] { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: none; }
.topbar.on-night nav .asknav { color: var(--glow); }
.topbar.on-night nav .asknav:hover, .topbar.on-night nav .asknav[aria-current="page"] { background: var(--glow); border-color: var(--glow); color: var(--night); }
.topbar.on-night { background: linear-gradient(rgba(10, 15, 18, 0.75), rgba(10, 15, 18, 0)); border-color: transparent; color: var(--night-ink); backdrop-filter: none; }
.topbar.on-night .mark::before { background: var(--glow); }
.topbar.on-night .back { border-color: var(--night-rule); }
.topbar.on-night nav a[aria-current="page"], .topbar.on-night nav a.here { box-shadow: inset 0 -2px 0 var(--glow); }

/* ---------- step navigator (every page) ---------- */
.stepnav { position: fixed; right: 1rem; top: 50%; transform: translateY(-50%); z-index: 900; display: flex; flex-direction: column; gap: 0.35rem; }
.stepnav button { width: 2.5rem; height: 2.5rem; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--rule); background: color-mix(in srgb, var(--card) 88%, transparent); backdrop-filter: blur(6px); color: var(--ink); cursor: pointer; box-shadow: var(--shadow); transition: background-color 0.2s, color 0.2s, opacity 0.2s; }
.stepnav button:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.stepnav button[disabled] { opacity: 0.35; pointer-events: none; }
.stepnav button svg { width: 1rem; height: 1rem; }
.stepnav .gap { height: 0.4rem; }
.stepnav.on-night button { background: rgba(10, 15, 18, 0.55); border-color: var(--night-rule); color: var(--night-ink); box-shadow: none; }
.stepnav.on-night button:hover { background: var(--glow); color: var(--night); }

/* ---------- segmented control ---------- */
.seg { display: inline-flex; flex-wrap: wrap; gap: 0.3rem; padding: 0.3rem; border-radius: 999px; background: color-mix(in srgb, var(--card) 92%, transparent); border: 1px solid var(--rule); box-shadow: var(--shadow); }
.seg button { font: 500 0.74rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; border: 0; background: transparent; color: var(--ink-2); padding: 0.55rem 0.8rem; border-radius: 999px; cursor: pointer; display: inline-flex; align-items: center; gap: 0.45rem; white-space: nowrap; }
.seg button:hover { color: var(--accent); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.seg button .sw { width: 0.6rem; height: 0.6rem; border-radius: 50%; }
/* a control that wraps onto two lines gets rounded corners instead of a pill */
.consent .seg, .tile .seg, .card .seg { border-radius: 14px; }
.on-dark .seg { background: rgba(255, 255, 255, 0.06); border-color: var(--night-rule); box-shadow: none; }
.on-dark .seg button { color: var(--night-muted); }
.on-dark .seg button[aria-pressed="true"] { background: var(--glow); color: var(--night); }

/* ---------- buttons, chips, inputs ---------- */
.btn { font: 500 0.78rem/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; padding: 0.8rem 1.05rem; border-radius: 999px; border: 1px solid currentColor; background: transparent; color: inherit; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem; }
.btn.solid { background: var(--glow); border-color: var(--glow); color: var(--night); }
.btn.ink { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn:hover { filter: brightness(1.08); }
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.8rem 0; }
.chip { font: 400 0.84rem/1 var(--sans); padding: 0.5rem 0.75rem; border: 1px solid var(--rule); background: var(--card); color: var(--ink-2); border-radius: 999px; cursor: pointer; }
.chip:hover { border-color: var(--accent); color: var(--accent); }
.on-dark .chip { background: transparent; border-color: var(--night-rule); color: var(--night-ink); }
.on-dark .chip:hover { border-color: var(--glow); color: var(--glow); }
input[type="search"], input[type="text"] { font: 400 1rem var(--sans); color: var(--ink); background: var(--card); border: 1px solid var(--rule); border-radius: 999px; padding: 0.7rem 1rem; }
.loading { font: 400 0.8rem var(--mono); color: var(--muted); }
.error { font: 400 0.9rem var(--sans); color: var(--amber); }

/* ---------- home: one 3D city behind the page ---------- */
body.home { background: var(--night); color: var(--night-ink); }
#city { position: fixed; inset: 0; z-index: 0; background: var(--night) center / cover no-repeat; pointer-events: none; }
#city .poster { position: absolute; inset: 0; background: center / cover no-repeat; filter: saturate(0.7) brightness(0.55); transform: scale(1.04); transition: opacity 0.6s; }
#city.ready .poster { opacity: 0; }
#city .globe { position: absolute; inset: 0; opacity: 0; transition: opacity 0.6s; }
#city.ready .globe { opacity: 1; }
#city .cesium-widget-credits, #city .cesium-viewer-bottom { display: none !important; }
.buildcount { position: fixed; left: 50%; top: 50%; transform: translate(-50%, -50%); z-index: 3; pointer-events: none; font: 500 0.76rem/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--night-ink); text-shadow: 0 1px 10px rgba(0, 0, 0, 0.55); transition: opacity 0.8s; }
.buildcount span { color: var(--glow); }
.buildcount.done { opacity: 0; }
@media (prefers-reduced-motion: reduce) { .buildcount { display: none; } }
.cityveil { position: fixed; inset: 0; z-index: 1; pointer-events: none; background:
  linear-gradient(90deg, rgba(10, 15, 18, 0.82) 0%, rgba(10, 15, 18, 0.45) 30%, rgba(10, 15, 18, 0) 55%),
  linear-gradient(0deg, rgba(10, 15, 18, 0.6) 0%, rgba(10, 15, 18, 0) 22%); }
.chapters { position: relative; z-index: 2; }
.chapter { min-height: 135vh; display: flex; align-items: center; padding: 0 var(--gutter); }
.chapter.first { min-height: 100vh; align-items: flex-end; padding-bottom: 14vh; }
.chapter .panel { width: min(27rem, 100%); background: rgba(10, 15, 18, 0.78); border: 1px solid var(--night-rule); backdrop-filter: blur(10px); border-radius: 6px; padding: 1.6rem 1.7rem 1.5rem; color: var(--night-ink); }
.chapter .panel .wp { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.chapter .panel .wp .label { color: var(--glow); }
.chapter .panel h2 { font: 600 1.85rem/1.1 var(--serif); letter-spacing: -0.015em; margin: 0 0 0.7rem; text-wrap: balance; }
.chapter .panel p { font-size: 1.02rem; line-height: 1.5; color: #d2dadd; margin: 0 0 1rem; }
.chapter .panel .num { font: 600 3.1rem/1 var(--serif); color: var(--glow); letter-spacing: -0.02em; }
.chapter .panel .num small { display: block; font: 400 0.72rem/1.5 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--night-muted); margin-top: 0.35rem; }
.chapter .panel .open { display: inline-flex; align-items: center; gap: 0.5rem; margin-top: 1.3rem; font: 500 0.8rem/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--night); background: var(--glow); padding: 0.85rem 1.1rem; border-radius: 999px; text-decoration: none; }
.chapter .panel .open:hover { filter: brightness(1.1); }
.chapter .panel .rows { display: grid; gap: 0; margin: 0.6rem 0 0; font: 400 0.76rem/1.45 var(--mono); color: var(--night-muted); }
.chapter .panel .rows div { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--night-rule); padding: 0.45rem 0; }
.chapter .panel .rows b { color: var(--night-ink); font-weight: 500; }
.chapter .panel .quote { font: italic 400 1.08rem/1.45 var(--serif); color: var(--night-ink); border-left: 2px solid var(--amber-glow); padding-left: 0.9rem; margin: 0 0 0.7rem; min-height: 3em; transition: opacity 0.4s; }
.chapter .panel .thumb { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 3px; display: block; margin: 0.2rem 0 0.8rem; }
.chapter .panel .tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.8rem; }
.chapter .panel .tags span { font: 400 0.72rem/1 var(--mono); letter-spacing: 0.05em; padding: 0.4rem 0.55rem; border-radius: 999px; background: rgba(99, 214, 196, 0.14); color: var(--glow); }
.minisearch { display: flex; gap: 0.4rem; margin-top: 0.4rem; }
.minisearch input { flex: 1; min-width: 0; background: rgba(255, 255, 255, 0.08); border-color: var(--night-rule); color: var(--night-ink); }
.minisearch input::placeholder { color: var(--night-muted); }
.minisearch button { flex: none; border: 0; border-radius: 999px; padding: 0 1rem; background: var(--glow); color: var(--night); font: 500 0.76rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; cursor: pointer; }
.home-hero { max-width: 44rem; }
.home-hero .label { color: var(--glow); }
.home-hero h1 { font: 600 clamp(2.6rem, 5.6vw, 4.8rem)/1.0 var(--serif); letter-spacing: -0.022em; margin: 1rem 0 1.2rem; text-wrap: balance; }
.home-hero .lead { font-size: clamp(1.08rem, 1.4vw, 1.3rem); color: #d6dee1; max-width: 33rem; margin: 0; }
.home-hero .cue { display: inline-flex; align-items: center; gap: 0.6rem; margin-top: 2rem; font: 500 0.78rem/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--glow); text-decoration: none; }
.home-hero .cue span { display: inline-block; animation: nudge 1.8s ease-in-out infinite; }
@keyframes nudge { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(5px); } }
.citycredit { position: fixed; left: var(--gutter); bottom: 0.7rem; z-index: 3; font: 400 0.62rem/1.4 var(--mono); color: rgba(255, 255, 255, 0.45); letter-spacing: 0.03em; pointer-events: none; max-width: 60vw; }
.chapdots { position: fixed; left: 50%; bottom: 1.2rem; transform: translateX(-50%); z-index: 3; display: flex; gap: 0.5rem; }
.chapdots a { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: rgba(255, 255, 255, 0.3); transition: background-color 0.3s, transform 0.3s; }
.chapdots a.on { background: var(--glow); transform: scale(1.4); }
.after { position: relative; z-index: 2; background: var(--paper); color: var(--ink); }

/* before / after slider */
.ba { position: relative; overflow: hidden; border-radius: 3px; aspect-ratio: 4 / 3; background: var(--night-2); --x: 50%; touch-action: pan-y; user-select: none; }
.ba img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.ba .after-img { clip-path: inset(0 0 0 var(--x)); }
.ba .handle { position: absolute; top: 0; bottom: 0; left: var(--x); width: 2px; background: #fff; transform: translateX(-1px); pointer-events: none; }
.ba .handle::after { content: "⟷"; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 2rem; height: 2rem; border-radius: 50%; background: #fff; color: var(--ink); display: grid; place-items: center; font-size: 0.9rem; }
.ba .tag { position: absolute; top: 0.5rem; font: 500 0.64rem/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: #fff; background: rgba(10, 15, 18, 0.6); padding: 0.32rem 0.45rem; border-radius: 2px; }
.ba .tag.l { left: 0.5rem; } .ba .tag.r { right: 0.5rem; }
.ba input[type="range"] { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }

/* ---------- work-package intro ---------- */
main { display: block; }
.intro { max-width: var(--wide); margin: 0 auto; padding: 8rem 1.25rem 3.5rem; }
.intro .label { margin-bottom: 1rem; display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem 0.6rem; }
.intro h1 { font: 600 clamp(2.4rem, 5vw, 4rem)/1.04 var(--serif); letter-spacing: -0.02em; margin: 0 0 1.2rem; max-width: 17ch; text-wrap: balance; }
.intro .lead { font-size: 1.24rem; line-height: 1.5; max-width: 36rem; color: var(--ink-2); margin: 0; }
.intro .actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.8rem; }
.intro .actions .btn { color: var(--ink); }
.intro .actions .btn.go { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- story: sticky figure with short cards ---------- */
.story { position: relative; }
.story .stage { position: sticky; top: 0; height: 100vh; overflow: hidden; background: var(--panel); }
.story .stage.dark { background: var(--night); }
/* z-index makes every layer its own stacking context, so map panes never rise above the legend */
.story .stage > .layer { position: absolute; inset: 3.6rem 0 0 0; z-index: 1; opacity: 0; transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1); pointer-events: none; }
.story .stage > .layer.on { opacity: 1; pointer-events: auto; }
.story .stage > .layer.full { inset: 0; }
.story .steps { position: relative; z-index: 5; margin-top: -100vh; pointer-events: none; }
.story .step { min-height: 100vh; display: flex; align-items: center; padding: 0 1.25rem; max-width: var(--wide); margin: 0 auto; }
.story .step.long { min-height: 260vh; align-items: flex-start; }
.story .step.long .card { position: sticky; top: 30vh; }
.story .step:last-child { min-height: 115vh; }
.card { pointer-events: auto; width: min(22rem, 100%); background: color-mix(in srgb, var(--card) 96%, transparent); box-shadow: var(--shadow); border-radius: 6px; padding: 1.35rem 1.5rem 1.3rem; }
.card .count { font: 500 0.74rem/1 var(--mono); color: var(--accent); letter-spacing: 0.08em; margin-bottom: 0.8rem; display: flex; justify-content: space-between; gap: 0.6rem; }
.card h3 { font: 600 1.5rem/1.15 var(--serif); margin: 0 0 0.55rem; letter-spacing: -0.012em; text-wrap: balance; }
.card p { font-size: 1rem; line-height: 1.5; margin: 0 0 0.6rem; color: var(--ink-2); }
.card p:last-child { margin-bottom: 0; }
.card .big { font: 600 2.8rem/1 var(--serif); color: var(--accent); letter-spacing: -0.02em; margin: 0.5rem 0 0.2rem; }
.card .big small { display: block; font: 400 0.7rem/1.5 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-top: 0.3rem; }
.card .src { font: 400 0.68rem/1.45 var(--mono); letter-spacing: 0.04em; color: var(--muted); margin-top: 0.8rem; text-transform: uppercase; }
.stage-caption { position: absolute; left: 1.25rem; bottom: 0.9rem; z-index: 6; max-width: 34rem; font: 400 0.66rem/1.45 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.stage.dark .stage-caption { color: var(--night-muted); }
.stage-legend { position: absolute; right: 4.6rem; bottom: 1rem; z-index: 6; display: grid; gap: 0.35rem; font: 500 0.7rem/1.3 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); text-align: right; background: rgba(255, 255, 255, 0.96); border: 1px solid var(--rule); box-shadow: var(--shadow); padding: 0.7rem 0.85rem; border-radius: 6px; }
.stage-legend:empty { display: none; }
.stage-legend .sw { display: inline-block; width: 0.7rem; height: 0.7rem; vertical-align: -0.08rem; margin-left: 0.45rem; border-radius: 2px; }
.stage-legend .ramp { display: inline-flex; width: 8rem; height: 0.55rem; border-radius: 1px; overflow: hidden; vertical-align: middle; margin-left: 0.45rem; }
.stage-legend .ramp span { flex: 1; }
.stage .map { position: absolute; inset: 0; }
/* maps outside a story stage get their own stacking context too */
.explore .map, .ask .right .map { z-index: 0; }
.stage .badge { position: absolute; top: 4.6rem; right: 4.6rem; z-index: 6; font: 600 0.72rem/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--amber); background: #fff7ec; border: 1px dashed var(--amber); padding: 0.5rem 0.7rem; border-radius: 999px; }
.stage .tools { position: absolute; top: 4.4rem; left: 50%; transform: translateX(-50%); z-index: 6; }
/* Figures that are not maps sit to the right of the cards on wide screens */
.story .stage .offset { padding-left: calc(var(--gutter) + 22rem + 2.5rem); padding-right: 4.5rem; }
.ramp { display: inline-flex; width: 7rem; height: 0.5rem; vertical-align: middle; border-radius: 1px; overflow: hidden; }
.ramp span { flex: 1; }

/* charts drawn in SVG */
.chartbox { position: absolute; inset: 0; display: grid; place-items: center; padding-top: 1rem; padding-bottom: 2.5rem; }
.chartbox svg { width: min(860px, 100%); height: auto; max-height: calc(100vh - 8rem); font-family: var(--sans); overflow: visible; }
.chartbox .title { font: 500 0.72rem/1.4 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; fill: var(--muted); }

/* ---------- editorial blocks ---------- */
.section { max-width: var(--wide); margin: 0 auto; padding: 6rem 1.25rem 2rem; }
.section > .label { margin-bottom: 1rem; }
.section h2 { font: 600 clamp(1.9rem, 3.2vw, 2.6rem)/1.1 var(--serif); letter-spacing: -0.015em; margin: 0 0 1rem; max-width: 22ch; text-wrap: balance; }
.section .prose { max-width: var(--measure); }
.section .prose p { margin: 0 0 1rem; }
.cols { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.6fr); gap: 3rem; align-items: start; }
.cols .text { position: sticky; top: 6rem; }
.stat .num { font: 600 3rem/1 var(--serif); color: var(--accent); letter-spacing: -0.02em; }
.stat .sub { font: 400 0.78rem/1.5 var(--mono); color: var(--muted); margin-top: 0.4rem; }
.grid-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: 1rem; }
.tile { background: var(--card); border: 1px solid var(--rule); border-radius: 6px; padding: 1.2rem 1.25rem; }
.tile h3 { font: 600 1.15rem/1.25 var(--serif); margin: 0 0 0.5rem; }
.tile p { font: 400 0.92rem/1.5 var(--sans); color: var(--ink-2); margin: 0 0 0.5rem; }
.tile .caption { margin-top: 0.6rem; }

/* ---------- Ask the images (dark, the page's main tool) ---------- */
.ask { position: relative; background: var(--night); color: var(--night-ink); }
.ask .wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); min-height: 100vh; }
.ask .left { padding: 7rem 2.5rem 4rem var(--gutter); }
.ask .label { color: var(--glow); }
.ask h2 { font: 600 clamp(2.6rem, 5vw, 4.2rem)/1 var(--serif); letter-spacing: -0.02em; margin: 0.8rem 0 0.8rem; }
.ask .sub { color: var(--night-muted); font-size: 1.1rem; margin: 0 0 1.6rem; max-width: 30rem; }
.ask form { display: flex; gap: 0.5rem; }
.ask input[type="search"] { flex: 1; min-width: 0; font: 400 1.25rem var(--serif); padding: 1rem 1.3rem; background: rgba(255, 255, 255, 0.07); border: 1px solid var(--night-rule); color: var(--night-ink); }
.ask input[type="search"]:focus { border-color: var(--glow); outline: none; box-shadow: 0 0 0 3px rgba(99, 214, 196, 0.25); }
.ask input::placeholder { color: #6f8189; }
.ask form button { flex: none; border: 0; border-radius: 999px; padding: 0 1.5rem; background: var(--glow); color: var(--night); font: 600 0.82rem/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; }
.ask .upload { display: inline-flex; align-items: center; gap: 0.5rem; font: 500 0.74rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--night-muted); cursor: pointer; margin-top: 0.4rem; }
.ask .upload:hover { color: var(--glow); }
.ask .upload input { display: none; }
.ask .note { font: 400 0.7rem/1.5 var(--mono); letter-spacing: 0.04em; color: #6f8189; margin-top: 1.4rem; text-transform: uppercase; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(12.5rem, 1fr)); gap: 0.8rem; margin-top: 1.6rem; }
.shot { background: var(--night-2); border: 1px solid var(--night-rule); border-radius: 6px; overflow: hidden; cursor: pointer; transition: border-color 0.2s, transform 0.2s; text-align: left; color: inherit; padding: 0; }
.shot:hover, .shot.active { border-color: var(--glow); transform: translateY(-2px); }
.shot img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; background: var(--night-3); }
.shot .meta { padding: 0.6rem 0.7rem 0.7rem; font: 400 0.68rem/1.4 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--night-muted); display: flex; justify-content: space-between; gap: 0.5rem; }
.shot .meta b { color: var(--glow); font-weight: 500; }
.shot p { margin: 0; padding: 0 0.7rem 0.75rem; font: 400 0.82rem/1.4 var(--sans); color: #c5cfd3; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.ask .right { position: sticky; top: 0; height: 100vh; }
.ask .right .map { position: absolute; inset: 0; }
.ask .detail { position: absolute; left: 1rem; right: 1rem; bottom: 1rem; z-index: 5; background: rgba(10, 15, 18, 0.88); border: 1px solid var(--night-rule); border-radius: 6px; padding: 0.9rem 1rem; font: 400 0.86rem/1.45 var(--sans); color: #d2dadd; display: none; }
.ask .detail.on { display: block; }
.ask .detail .links { margin-top: 0.5rem; font-size: 0.8rem; }
.ask .detail a { color: var(--glow); }
.map.dark { background: #0d1418; }
.map.dark .leaflet-tile-pane { filter: grayscale(1) invert(1) brightness(0.62) contrast(1.15); opacity: 1; }
.map.dark .leaflet-control-attribution { background: rgba(10, 15, 18, 0.7) !important; color: #7d8d94; }
.map.dark .leaflet-control-attribution a { color: #9cadb5; }

/* ---------- tables, details ---------- */
.table-wrap { overflow-x: auto; border-top: 1px solid var(--ink); margin: 1rem 0 0.4rem; }
table { border-collapse: collapse; width: 100%; font: 400 0.88rem/1.45 var(--sans); font-variant-numeric: tabular-nums; }
th { text-align: left; font: 500 0.68rem/1.3 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); padding: 0.7rem; border-bottom: 1px solid var(--rule); vertical-align: bottom; }
td { padding: 0.6rem 0.7rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
td.num, th.num { text-align: right; white-space: nowrap; }
details.more { max-width: var(--wide); border-top: 1px solid var(--rule); }
details.more:last-of-type { border-bottom: 1px solid var(--rule); }
details.more > summary { cursor: pointer; list-style: none; padding: 1.1rem 0; font: 600 1.15rem/1.3 var(--serif); display: flex; justify-content: space-between; gap: 1rem; }
details.more > summary::-webkit-details-marker { display: none; }
details.more > summary::after { content: "+"; font: 400 1.2rem/1 var(--mono); color: var(--accent); }
details.more[open] > summary::after { content: "–"; }
details.more > .body { padding: 0 0 1.6rem; font-size: 1rem; }
details.more > .body > p, details.more > .body > ul { max-width: var(--measure); }

/* ---------- footer ---------- */
.foot { position: relative; z-index: 2; background: var(--night); color: var(--night-muted); }
.foot .bar { max-width: var(--wide); margin: 0 auto; padding: 3rem 1.25rem 3.5rem; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 2rem; font: 400 0.82rem/1.6 var(--sans); }
.foot a { color: var(--glow); }
.foot .label { color: var(--glow); margin-bottom: 0.8rem; }
.foot .next { font: 600 1.6rem/1.2 var(--serif); color: var(--night-ink); text-decoration: none; display: block; margin-top: 0.4rem; }
.foot .next:hover { color: var(--glow); }
.foot .home-link { display: inline-block; margin-top: 1rem; font: 500 0.78rem/1 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }

/* ---------- Leaflet ---------- */
.leaflet-container { font: 400 0.8rem var(--sans); background: #e6ebea; }
.leaflet-tile-pane { filter: var(--tiles); opacity: 0.62; }
.leaflet-popup-content-wrapper, .leaflet-popup-tip { border-radius: 3px; box-shadow: var(--shadow); }
.leaflet-control-attribution { font: 400 0.62rem var(--mono) !important; background: rgba(246, 247, 245, 0.85) !important; }
.spikes { position: absolute; inset: 0; pointer-events: none; z-index: 450; }

@media (max-width: 900px) {
  .cols { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .cols .text { position: static; }
  .story .step { align-items: flex-end; padding-bottom: 8vh; }
  .story .step.long .card { top: auto; bottom: 6vh; }
  .card { width: 100%; padding: 1.1rem 1.2rem; }
  .card h3 { font-size: 1.3rem; }
  .card .big { font-size: 2.2rem; }
  .story .stage .offset { padding-left: 1rem; padding-right: 1rem; }
  .stage .badge { top: 4.2rem; right: 1rem; }
  .stage-legend { right: 1rem; top: 4.2rem; bottom: auto; font-size: 0.62rem; }
  .foot .bar { grid-template-columns: 1fr; }
  .topbar .bar { gap: 0.5rem; padding: 0.6rem 0.9rem; }
  .topbar .mark .in, .topbar .mark .sub { display: none; }
  .topbar .mark::before { width: 1rem; }
  .topbar .back { padding: 0.45rem 0.55rem; }
  .topbar .back .t { display: none; }
  .topbar nav a { padding: 0.5rem 0.3rem; letter-spacing: 0.04em; font-size: 0.76rem; }
  .topbar nav .asknav { padding: 0.42rem 0.55rem; margin-left: 0.25rem; }
  .topbar nav .asknav .t { display: none; } .topbar nav .asknav .s { display: inline; }
  .stepnav { top: auto; bottom: 1rem; right: 0.7rem; transform: none; }
  .stepnav button { width: 2.2rem; height: 2.2rem; }
  .stepnav .top, .stepnav .bottom, .stepnav .gap { display: none; }
  .chapter { min-height: 120vh; align-items: flex-end; padding-bottom: 10vh; }
  .chapter .panel { padding: 1.2rem 1.25rem; }
  .chapter .panel h2 { font-size: 1.5rem; }
  .chapter .panel .num { font-size: 2.4rem; }
  .cityveil { background: linear-gradient(0deg, rgba(10, 15, 18, 0.85) 0%, rgba(10, 15, 18, 0.2) 55%); }
  .chapdots { display: none; }
  .citycredit { top: 3.3rem; bottom: auto; left: 1rem; right: 1rem; max-width: none; font-size: 0.55rem; }
  .ask .wrap { grid-template-columns: minmax(0, 1fr); }
  .ask .left { padding: 6rem 1rem 2rem; }
  .ask .right { position: relative; height: 60vh; }
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stage .tools { top: auto; bottom: 1rem; }
}