/* Kaif Nadeem portfolio. Look F, "neon blueprint": glowing linework on near-black navy, one continuous page.
   Safety yellow is the only accent and is kept for interactive things. Motion: transform/opacity only. */
:root {
  --bg: #071a33;
  --bg-2: #0a2242;      /* raised surfaces: chapter panel, sheet */
  --ink: #e6f6ff;       /* headings, 15.8:1 on bg (11.4:1 at the glow peak) */
  --ink-2: #c3dcee;     /* body, 12.3:1 */
  --ink-3: #9dbdd6;     /* secondary, 8.9:1 */
  --ink-4: #86a9c4;     /* smallest text, 7.0:1 (5.1:1 at the glow peak) */
  --line: rgba(120, 190, 255, .16);
  --ctl: rgba(150, 205, 255, .5);  /* control outlines, 3.6:1 (WCAG 1.4.11) */
  --accent: #ffd23f;    /* safety yellow: ONLY hovered/selected things, callouts, primary button, focus, Winner */
  --on-accent: #071a33; /* navy on yellow, 12.1:1 */
  --sans: "Schibsted Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --spring: cubic-bezier(.22, 1, .36, 1);
  --ease: cubic-bezier(.4, 0, .2, 1);
  --gutter: 40px;
  --head-h: 60px;
  --panel-w: 420px;
  /* the stage takes most of the first screen; the project name still peeks above the fold */
  --band-h: clamp(420px, calc(100svh - 300px), 1000px);
  color-scheme: dark;
}
@media (max-width: 767px) { :root { --gutter: 16px; --head-h: 56px; --band-h: clamp(320px, 108vw, 62svh); } }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 12px; background: var(--bg); }
body {
  margin: 0;
  position: relative;
  color: var(--ink); /* the background sits on <html> so the grid and glow layers can go behind the content */
  font: 400 16px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
/* the blueprint grid: one fixed, composited layer behind the whole page (no repaint on scroll) */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(rgba(90, 180, 255, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(90, 180, 255, .09) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: center top;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p, ul, dl, dd, figure { margin: 0; }
ul { padding: 0; list-style: none; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
::selection { background: var(--accent); color: var(--on-accent); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: fixed; left: 16px; top: 10px; z-index: 60; background: var(--accent); color: var(--on-accent); padding: 10px 14px; border-radius: 999px; font-weight: 600; transform: translateY(-80px); transition: transform .2s var(--spring); }
.skip:focus-visible { transform: none; }

.wrap { width: 100%; max-width: 1360px; margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

/* first visit: the page fades up once */
html.intro body > * { animation: page-in .6s var(--ease) both; }
@keyframes page-in { from { opacity: 0; } to { opacity: 1; } }

/* ---------- header: part of the page, no bar ---------- */
.top { position: relative; z-index: 30; height: var(--head-h); }
.top .wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; min-height: 44px; display: inline-flex; align-items: center; }
.nav { display: flex; gap: 4px; font-size: 15px; }
.nav a { position: relative; display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px; color: var(--ink-3); border-radius: 999px; transition: color .2s var(--ease); }
.nav a::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 9px; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .25s var(--spring); }
.nav a:hover, .nav a[aria-current="true"] { color: var(--ink); }
.nav a[aria-current="true"]::after, .nav a:hover::after { transform: scaleX(1); }

/* ---------- hero (one compact row so the machine gets the screen) ---------- */
.hero { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 6px 48px; padding-top: 2px; }
.hero h1 { max-width: 760px; font-size: clamp(22px, 1.9vw, 30px); line-height: 1.15; font-weight: 500; letter-spacing: -0.02em; text-wrap: balance; }
.hero p { max-width: 360px; font-size: 15px; line-height: 1.5; color: var(--ink-3); }

/* ---------- stage ---------- */
.work { position: relative; margin-top: 6px; overflow-x: clip; } /* the glow is wider than the page */
/* the soft blue glow behind the machine; on .work so the band never shows a hard edge */
.work::before {
  content: ""; position: absolute; z-index: -1; pointer-events: none;
  left: 50%; top: calc(28px + var(--band-h) * .54);
  width: min(1500px, 140vw); height: calc(var(--band-h) * 1.5);
  transform: translate(-50%, -50%);
  background: radial-gradient(closest-side, rgba(40, 140, 255, .22), rgba(40, 140, 255, .1) 55%, transparent);
}
.stage-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 28px; position: relative; z-index: 9; }
.hint { font-size: 14px; color: var(--ink-3); transition: opacity .3s var(--ease); }
.counter { flex: none; white-space: nowrap; display: flex; align-items: center; gap: 14px; font: 500 13px/1 var(--mono); color: var(--ink); }
.count-of { color: var(--ink-4); }
.ticks { display: flex; gap: 6px; }
.ticks i { width: 24px; height: 2px; background: rgba(150, 205, 255, .25); display: block; transition: background .3s var(--ease); }
.ticks i[data-on] { background: var(--ink); }

.band {
  position: relative;
  height: var(--band-h);
  overflow-x: clip; /* clip sideways only: the turntable glow may spill below the band */
  overflow-y: visible;
  container-type: size;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  cursor: grab;
}
.band[data-dragging] { cursor: grabbing; }
.track { position: absolute; inset: 0; }
.slide {
  position: absolute; left: 50%; top: 50%;
  width: min(76cqw, 1100px);
  height: 100cqh;
  container-type: size;
  will-change: transform, opacity;
  transform: translate3d(-50%, -50%, 0);
}
.slide[hidden] { display: none; }
.band[data-exploded] .slide:not(.is-center) { opacity: 0 !important; transition: opacity .3s var(--ease); }
/* the machine keeps its own drawing ratio (--ar) and fits inside the slide */
.machine-box {
  --ar: 1;
  position: absolute; inset: 0; margin: auto;
  width: min(100cqw, 100cqh * var(--ar));
  height: min(100cqh, 100cqw / var(--ar));
  transform: scale(var(--fit, 1));
  transition: transform .7s var(--spring);
}
/* exploded with side labels: a little smaller so both label columns have room */
.band[data-exploded]:not([data-strip]) .slide.is-center .machine-box { transform: scale(calc(var(--fit, 1) * .94)); }
.band[data-panel]:not([data-strip]) .slide.is-center .machine-box { transform: translateX(calc(var(--panel-w) / -2)) translate(var(--zx, 0px), var(--zy, 0px)) scale(calc(var(--fit, 1) * .86 * var(--zs, 1))); }
.machine-host { position: absolute; inset: 0; }
.layer { position: absolute; inset: 0; transition: opacity .45s var(--ease), visibility 0s; }
.layer > * { width: 100%; height: 100%; }
.layer[data-out] { opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .45s var(--ease), visibility 0s .45s; }
.slide:not(.is-center) .layer { pointer-events: none; }
.slide:not(.is-center) .machine-host { cursor: pointer; }

/* idle flipbook: two stacked frames, the top one cross-fades to the next angle */
.layer-flip { cursor: grab; touch-action: pan-y; }
.layer-flip[data-drag] { cursor: grabbing; }
.layer-flip img { position: absolute;
  /* overhang by the frame margin: --pad is a fraction of the width; top/bottom % are of the height, so scale by --ar */
  left: calc(var(--pad, 0) * -100%); top: calc(var(--pad, 0) * var(--ar, 1) * -100%);
  width: calc(100% * (1 + 2 * var(--pad, 0))); height: calc(100% * (1 + 2 * var(--pad, 0) * var(--ar, 1))); max-width: none; object-fit: contain; pointer-events: none; user-select: none; -webkit-user-drag: none; }
.layer-flip .flip-b { opacity: 0; }
.slide.is-center .layer-flip:focus-visible { outline-offset: -4px; border-radius: 12px; }

/* live machine: the same tone map as the frames, but NO glow. Measured: the blur on a live, redrawing SVG
   halves the frame rate (60 -> 35 fps at 1440 DPR2, 51 -> 26 on on-track); the tone map alone stays at 60.
   The glow lives in the pre-rendered flipbook frames instead, where it costs nothing. */
.layer-live > * { filter: url(#bp); }
.slide[data-tone="soft"] .layer-live > * { filter: url(#bp-soft); }
/* desk-button: its light, wires and walkthrough panel sit in a sibling layer that keeps its real colours */
.layer-live > .dbn-fx { filter: none; }
.still { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; cursor: pointer; }
.still img { width: 100%; height: 100%; object-fit: contain; filter: url(#bp); mix-blend-mode: lighten; }
.still-outline { width: 50%; height: auto; color: var(--ctl); }
.loading-3d {
  position: absolute; left: 50%; bottom: 6px; transform: translateX(-50%); z-index: 9;
  font: 500 12px/1 var(--mono); color: var(--ink-3); opacity: 0; pointer-events: none;
  transition: opacity .2s var(--ease);
}
.slide[data-loading] .loading-3d { opacity: 1; transition-delay: .5s; }

/* the site draws its own callouts, so the machines' built-in part labels stay hidden here */
#track .knl-labels, #track .abs-labels { display: none; }
/* machine linework: a touch more ink than the machines' own light theme (becomes brighter lines) */
#track .iso[data-theme="light"] { --anatomy-lo: #9d9d9d; --anatomy-faint: #c6c6c6; --anatomy-mid: #6f6f6f; }
/* hovered / selected part: the machines stroke it in --anatomy-accent. Pure red is the one colour in a
   grey drawing, so the blueprint filter (js/look.js) can pick it out and paint it safety yellow. */
#track .iso { --anatomy-accent: #ff0000; }
/* ai-beat-studio has no accent hook yet: same look applied from here. Only the edge linework turns red
   (-> yellow): its punched holes, vents and QR also use --anatomy-mid/hi, and recolouring those vars turned
   the dense piano roll into a solid yellow slab at small sizes (13 Oct). */
#track .abs-root .iso-live [data-asm][data-hov],
#track .abs-root[data-sel] .iso-live [data-asm][data-on] { filter: none; }
#track .abs-root .iso-live [data-asm][data-hov] :is(.iso-line, .iso-edge, .iso-crease, .iso-bevel),
#track .abs-root[data-sel] .iso-live [data-asm][data-on] :is(.iso-line, .iso-edge, .iso-crease, .iso-bevel) { stroke: #ff0000; }

/* callouts: labels outside the silhouette, joined to parts by hairline leaders */
.callouts { position: absolute; inset: 0; z-index: 6; pointer-events: none; }
.leaders { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; opacity: 0; transition: opacity .3s var(--ease); }
.callouts[data-on] .leaders { opacity: 1; transition: opacity .5s var(--ease) .12s; }
.leader { fill: none; stroke: var(--accent); stroke-width: 1; stroke-opacity: .55; stroke-linejoin: round; transition: stroke-opacity .2s var(--ease); }
.leader-dot { fill: var(--accent); fill-opacity: .8; transition: fill-opacity .2s var(--ease); }
.leaders g[data-hot] .leader, .leaders g[data-current] .leader { stroke-opacity: 1; stroke-width: 1.25; }
.leaders g[data-hot] .leader-dot, .leaders g[data-current] .leader-dot { fill-opacity: 1; }
.callout {
  position: absolute; left: 0; top: 0;
  height: 32px; padding: 0; border: 0; background: none;
  font: 500 14px/1 var(--sans); color: var(--ink);
  cursor: pointer; pointer-events: none; white-space: nowrap;
  will-change: transform;
}
.callout::before { content: ""; position: absolute; inset: -6px -4px; } /* 44px tall hit area */
.callout .in {
  display: inline-flex; align-items: center; gap: 8px; height: 32px; max-width: 100%; padding: 0 11px; border-radius: 999px;
  background: rgba(7, 26, 51, .9); box-shadow: inset 0 0 0 1px rgba(255, 210, 63, .55);
  opacity: 0; transform: translate3d(var(--from, 0), 0, 0);
  transition: opacity .2s var(--ease), transform .3s var(--ease), background .18s var(--ease), color .18s var(--ease);
}
.callout[data-side="L"] { --from: 10px; }
.callout[data-side="R"] { --from: -10px; }
.callout .nm { overflow: hidden; text-overflow: ellipsis; }
.callout b { font: 500 12px/1 var(--mono); color: var(--accent); transition: color .18s var(--ease); }
.callouts[data-mode="side"][data-on] .callout { pointer-events: auto; }
.callouts[data-mode="side"][data-on] .callout .in { opacity: 1; transform: none; transition: opacity .45s var(--ease) var(--d), transform .6s var(--spring) var(--d), background .18s var(--ease), color .18s var(--ease); }
.callouts[data-mode="tag"] .callout:not([data-hot]), .callouts[data-mode="tag"] .leaders g:not([data-hot]) { visibility: hidden; }
.callouts[data-mode="tag"][data-on] .callout[data-hot] .in { opacity: 1; transform: none; }
.callout:hover .in, .callout:focus-visible .in, .callout[data-hot] .in, .callout[aria-current="true"] .in { background: var(--accent); color: var(--on-accent); box-shadow: none; }
.callout:hover b, .callout:focus-visible b, .callout[data-hot] b, .callout[aria-current="true"] b { color: var(--on-accent); }
.callout:focus-visible { outline: none; }
.callout:focus-visible .in { box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--accent); }
/* the strip: phones, or wherever side columns don't fit */
.strip {
  position: absolute; left: 0; right: 0; bottom: 10px; z-index: 7;
  display: flex; gap: 6px; padding: 0 var(--gutter); overflow-x: auto; scrollbar-width: none;
  opacity: 0; transform: translate3d(0, 12px, 0); pointer-events: none; visibility: hidden;
  transition: opacity .25s var(--ease), transform .45s var(--spring), visibility 0s .25s;
}
.strip::-webkit-scrollbar { display: none; }
@media (min-width: 768px) { .band[data-panel] .strip { right: calc(var(--panel-w) + 24px); } }
.band[data-strip] .strip { opacity: 1; transform: none; pointer-events: auto; visibility: visible; transition: opacity .35s var(--ease), transform .55s var(--spring); }
.band[data-strip] .slide.is-center .machine-box { transform: translateY(-6%) scale(calc(var(--fit, 1) * .86)); }
.band[data-strip][data-panel] .slide.is-center .machine-box { transform: translateX(calc(var(--panel-w) / -2)) translateY(-6%) translate(var(--zx, 0px), var(--zy, 0px)) scale(calc(var(--fit, 1) * .82 * var(--zs, 1))); }
.strip-btn { flex: none; display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 14px; border: 1px solid rgba(255, 210, 63, .55); border-radius: 999px; background: rgba(7, 26, 51, .9); font: 500 14px var(--sans); color: var(--ink); cursor: pointer; transition: background .2s var(--ease), color .2s var(--ease); }
.strip-btn .in { display: inline-flex; align-items: center; gap: 8px; }
.strip-btn b { font: 500 12px var(--mono); color: var(--accent); }
.strip-btn:hover, .strip-btn[aria-current="true"] { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.strip-btn:hover b, .strip-btn[aria-current="true"] b { color: var(--on-accent); }

.arrow {
  position: absolute; top: 50%; z-index: 8;
  width: 48px; height: 48px; margin-top: -24px;
  border-radius: 999px; border: 1px solid var(--ctl); background: rgba(7, 26, 51, .7); color: var(--ink);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease), opacity .3s var(--ease);
}
.arrow:hover { border-color: var(--accent); color: var(--accent); }
.arrow-prev { left: var(--gutter); }
.arrow-next { right: var(--gutter); }
.arrow-label {
  position: absolute; top: 50%; white-space: nowrap; pointer-events: none;
  font: 500 13px/1 var(--sans); color: var(--ink);
  background: var(--bg-2); box-shadow: inset 0 0 0 1px var(--line);
  padding: 8px 12px; border-radius: 999px;
  opacity: 0; transition: opacity .2s var(--ease), transform .3s var(--spring);
}
.arrow-prev .arrow-label { left: 58px; transform: translate(-6px, -50%); }
.arrow-next .arrow-label { right: 58px; transform: translate(6px, -50%); }
.arrow:hover .arrow-label, .arrow:focus-visible .arrow-label { opacity: 1; transform: translate(0, -50%); }
.band[data-exploded] .arrow { opacity: 0; pointer-events: none; visibility: hidden; transition: opacity .2s var(--ease), visibility 0s .2s; }

/* chapter panel: right side on desktop */
.chapter {
  position: absolute; top: 12px; right: 12px; bottom: 12px; z-index: 10;
  width: var(--panel-w); max-width: calc(100% - 24px);
  background: rgba(10, 34, 66, .94); box-shadow: inset 0 0 0 1px var(--line);
  border-radius: 14px;
  display: flex; flex-direction: column;
  transform: translate3d(0, 0, 0);
  transition: transform .6s var(--spring), visibility 0s;
  cursor: auto;
}
.chapter[hidden] { display: flex; transform: translate3d(110%, 0, 0); visibility: hidden; transition: transform .45s var(--ease), visibility 0s .45s; }
.sheet-grip { display: none; }
.chapter-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 14px 0 28px; }
.chapter-num { font: 500 13px var(--mono); color: var(--accent); }
.icon-btn { width: 44px; height: 44px; border: 0; background: none; color: var(--ink-2); display: flex; align-items: center; justify-content: center; cursor: pointer; border-radius: 999px; transition: background .2s var(--ease), color .2s var(--ease); }
.icon-btn:hover { background: rgba(150, 205, 255, .1); color: var(--ink); }
.chapter-scroll { flex: 1; overflow-y: auto; padding: 8px 28px 22px; display: flex; flex-direction: column; gap: 16px; overscroll-behavior: contain; transition: opacity .16s var(--ease), transform .3s var(--spring); }
.chapter-scroll[data-swap] { opacity: 0; transform: translate3d(0, 6px, 0); transition: opacity .12s var(--ease), transform 0s .12s; }
.chapter h3 { font-size: 26px; line-height: 1.15; font-weight: 600; letter-spacing: -0.02em; }
.chapter-body { font-size: 16px; line-height: 1.65; color: var(--ink-2); max-width: 60ch; }
.chapter-shot img { width: 100%; border-radius: 8px; }
.chapter-nav { display: flex; justify-content: space-between; gap: 8px; padding: 6px 12px 12px; }
.text-btn { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; max-width: 50%; padding: 0 12px; border: 0; background: none; cursor: pointer; font: 500 14px/1.25 var(--sans); color: var(--ink-3); border-radius: 999px; text-align: left; transition: background .2s var(--ease), color .2s var(--ease); }
.text-btn > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.text-btn:hover { color: var(--ink); background: rgba(150, 205, 255, .1); }
.text-btn-end { color: var(--ink); text-align: right; }

/* ---------- info under the stage ---------- */
.info { position: relative; padding-top: 10px; padding-bottom: 40px; min-height: 180px; touch-action: pan-y; }
.info-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px 48px; align-items: start; will-change: transform, opacity; }
.info-main { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.info-side { display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.info h3 { font-size: 34px; line-height: 1.1; font-weight: 600; letter-spacing: -0.02em; }
.info-line { font-size: 18px; color: var(--ink-2); max-width: 52ch; }
.outcome { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; font-size: 15px; color: var(--ink-3); margin-top: 2px; }
.outcome ul { display: contents; }
.tag { font: 600 12px/1 var(--mono); color: var(--on-accent); background: var(--accent); padding: 5px 8px 4px; border-radius: 4px; }
.outcome-sep { color: var(--ink-4); opacity: .6; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; justify-content: flex-end; font: 400 13px var(--mono); color: var(--ink-2); }
.chips li { box-shadow: inset 0 0 0 1px rgba(150, 205, 255, .28); border-radius: 999px; padding: 5px 12px; }
.chapter .chips { justify-content: flex-start; }
.credits { font-size: 14px; color: var(--ink-4); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; align-items: center; }
.pill {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 44px; padding: 0 20px; border: 1px solid var(--ctl); border-radius: 999px; background: transparent;
  font: 500 15px/1 var(--sans); color: var(--ink); cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--spring), filter .2s var(--ease);
}
.pill:hover { border-color: var(--ink); }
.pill:active { transform: scale(.98); }
.pill-primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); font-weight: 600; }
.pill-primary:hover, .pill-primary:focus-visible { border-color: var(--accent); filter: brightness(1.08); }
.pill-quiet { border-color: transparent; color: var(--ink-2); text-decoration: underline; text-decoration-color: rgba(150, 205, 255, .4); text-underline-offset: 5px; padding: 0 12px; }
.pill-quiet:hover { border-color: transparent; color: var(--ink); text-decoration-color: var(--ink); }
.pill-ghost { border-style: dashed; color: var(--ink-3); cursor: default; }
.pill svg { transition: transform .5s var(--spring); }
.pill[aria-pressed="true"] svg { transform: rotate(180deg); }
/* Explode / Reassemble: both labels share one grid cell so the button never changes width */
.morph { display: inline-grid; }
.morph > span { grid-area: 1 / 1; text-align: center; transition: opacity .2s var(--ease), transform .3s var(--spring); }
.morph > span:last-child { opacity: 0; transform: translateY(6px); }
.pill[aria-pressed="true"] .morph > span:first-child { opacity: 0; transform: translateY(-6px); }
.pill[aria-pressed="true"] .morph > span:last-child { opacity: 1; transform: none; }
.note { font-size: 14px; color: var(--ink-4); margin-top: 10px; }
.ph { box-shadow: inset 0 0 0 1px var(--ctl); border-radius: 4px; padding: 1px 6px; color: var(--ink-3); font-family: var(--mono); font-size: .8em; }

/* ---------- about ---------- */
.about { display: flex; flex-wrap: wrap; gap: 48px 80px; align-items: flex-start; padding-top: 88px; }
.photo { flex: 1 1 280px; max-width: 360px; position: relative; aspect-ratio: 4 / 5; }
.photo img { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; filter: grayscale(1); }
.photo-ph { display: none; }
.photo[data-state="missing"] { display: none; }
.photo[data-state="placeholder"] { border: 1px dashed var(--ctl); border-radius: 6px; }
.photo[data-state="placeholder"] img { display: none; }
.photo[data-state="placeholder"] .photo-ph { display: flex; position: absolute; inset: 0; align-items: center; justify-content: center; font: 500 14px var(--mono); color: var(--ink-3); }
.about-text { flex: 999 1 480px; min-width: 0; display: flex; flex-direction: column; gap: 26px; }
.about h2 { max-width: 720px; font-size: clamp(28px, 3.2vw, 42px); line-height: 1.1; font-weight: 500; letter-spacing: -0.025em; text-wrap: balance; }
.prose { max-width: 620px; display: flex; flex-direction: column; gap: 14px; font-size: 17px; line-height: 1.65; color: var(--ink-2); }
.facts { max-width: 620px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 32px; }
.facts div { padding: 10px 0; display: flex; flex-direction: column; gap: 4px; }
.facts dt { font-size: 14px; color: var(--ink-4); }
.facts dd { font-size: 16px; }

/* ---------- contact ---------- */
.contact { display: flex; flex-wrap: wrap; gap: 32px 80px; align-items: flex-start; padding-top: 88px; padding-bottom: 72px; }
.contact-intro { flex: 1 1 280px; max-width: 360px; display: flex; flex-direction: column; gap: 10px; }
.contact h2 { font-size: 34px; font-weight: 500; letter-spacing: -0.02em; }
.contact-intro p { font-size: 16px; color: var(--ink-3); }
.contact-list { flex: 999 1 480px; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.contact-row { display: flex; align-items: center; gap: 8px 24px; min-height: 64px; padding: 10px 0; }
.contact-k { width: 96px; flex: none; font-size: 14px; color: var(--ink-4); }
.contact-v { flex: 1; min-width: 0; font-size: 22px; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.contact-arrow { color: var(--ink-3); transition: transform .25s var(--spring), color .2s var(--ease); }
a.contact-row[href]:hover .contact-arrow { transform: translate(3px, -3px); color: var(--accent); }
a.contact-row[href]:hover .contact-v { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 5px; text-decoration-thickness: 1px; }
.contact-row:not([href]) .contact-arrow { display: none; }

.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 20px; padding-bottom: 28px; font-size: 14px; color: var(--ink-4); }
.noscript { padding: 24px var(--gutter); color: var(--ink-2); }
.noscript a { text-decoration: underline; }

/* ---------- phone ---------- */
@media (max-width: 767px) {
  .brand { font-size: 16px; }
  .nav { gap: 0; font-size: 14px; }
  .nav a { padding: 0 9px; }
  .nav a::after { left: 9px; right: 9px; }
  .hero h1 { font-size: 22px; }
  .hero p { max-width: none; font-size: 14px; }
  .work { margin-top: 10px; }
  .hint { font-size: 13px; }
  .ticks { display: none; }
  .slide { width: 96cqw; height: 96cqh; }
  .band[data-panel] .slide.is-center .machine-box,
  .band[data-strip][data-panel] .slide.is-center .machine-box { transform: translateY(-24%) translate(var(--zx, 0px), var(--zy, 0px)) scale(calc(var(--fit, 1) * .72 * var(--zs, 1))); }
  .arrow { top: auto; bottom: 6px; margin-top: 0; width: 44px; height: 44px; }
  .arrow-label { display: none; }
  .info { padding-top: 12px; min-height: 280px; }
  .info-inner { grid-template-columns: 1fr; gap: 14px; }
  .info-side { align-items: flex-start; }
  .info h3 { font-size: 28px; }
  .info-line { font-size: 17px; }
  .chips, .actions { justify-content: flex-start; }
  .actions .pill-primary { flex: 1 1 100%; min-height: 48px; }

  /* bottom sheet */
  .chapter {
    position: fixed; top: auto; left: 0; right: 0; bottom: 0; width: auto; max-width: none;
    max-height: min(60svh, 520px);
    background: var(--bg-2);
    box-shadow: inset 0 1px 0 0 var(--line), 0 -18px 40px rgba(0, 0, 0, .35);
    border-radius: 18px 18px 0 0;
    padding-bottom: env(safe-area-inset-bottom);
    transform: translate3d(0, 0, 0); z-index: 40;
  }
  .chapter[hidden] { transform: translate3d(0, 104%, 0); }
  .sheet-grip { display: block; align-self: center; width: 40px; height: 4px; border-radius: 999px; background: rgba(150, 205, 255, .35); margin-top: 10px; }
  .chapter-head { padding: 2px 8px 0 20px; }
  .chapter-scroll { padding: 2px 20px 16px; gap: 12px; }
  .chapter h3 { font-size: 23px; }
  .chapter-body { font-size: 15px; }
  .chapter-nav { padding: 6px 8px 10px; }
  .about { padding-top: 64px; gap: 32px; }
  .photo { max-width: none; flex-basis: 100%; }
  .facts { grid-template-columns: 1fr; }
  .contact { padding-top: 64px; }
  .contact-row { flex-wrap: wrap; min-height: 64px; gap: 2px 16px; }
  .contact-k { width: 100%; }
  .contact-v { font-size: 19px; }
  .contact-arrow { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.intro body > * { animation: none; }
  *, *::before, *::after { transition-duration: .01ms !important; animation: none !important; }
}

/* fit is a desktop-only zoom: on phones the stage is already edge to edge */
@media (max-width: 767px) { .machine-box { --fit: 1 !important; } }

/* zoom into the chosen part while its chapter is open: labels step aside so they do not float off the parts */
.band[data-zoom] .callouts, .band[data-zoom] .strip { opacity: 0; pointer-events: none; transition: opacity .25s var(--ease); }

/* ai-beat-studio: a grab hand over the machine, the pointer only over a part (like the other machines) */
#track .abs-stage { cursor: grab; }
#track .abs-stage[data-drag] { cursor: grabbing; }
/* while zoomed in, the machine stays inside the stage instead of drawing over the text below it */
.band[data-zoom] .track { overflow: clip; }