/* BuildLedger Pro — landing page, round 2 (plan blr, phases 17–20).
   The construction drawing: blueprint navy, drawing paper, the logo's gold
   for dimension lines and the main button, Archivo + IBM Plex Mono,
   sheet frames with corner ticks. Loaded by index.html only. */

:root {
  --bp: #0b1b30;
  --bp-2: #0f2440;
  --bp-3: #15304f;
  --bp-line: rgba(124, 196, 255, 0.14);
  --cyan: #7cc4ff;
  --gold: #f2b01e;
  --gold-2: #ffc94a;
  --gold-deep: #9a6a00;
  --paper: #eef1f4;
  --paper-2: #e0e6ec;
  --white: #ffffff;
  --text: #10233b;
  --muted: #55697f;
  --line: rgba(16, 35, 59, 0.14);
  --on-bp: #e8f0fa;
  --on-bp-muted: rgba(232, 240, 250, 0.62);
  --green: #2e8b57;
  --red: #d0312d;

  --sans: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --wrap: 1240px;
  --hdr: 64px;
  --r: 4px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: clip; scroll-padding-top: calc(var(--hdr) + 12px); }
body.lp { font-family: var(--sans); background: var(--paper); color: var(--text); line-height: 1.55; -webkit-font-smoothing: antialiased; overflow-x: clip; }
:where(.lp) img, :where(.lp) svg { display: block; max-width: 100%; }
:where(.lp) a { color: inherit; text-decoration: none; }
:where(.lp) button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
.lp :focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

html[data-side="builder"] [data-for="supplier"],
html[data-side="supplier"] [data-for="builder"] { display: none !important; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; }

/* Grids: blueprint on navy, faint squares on paper. */
.bp {
  background-color: var(--bp); color: var(--on-bp);
  background-image:
    linear-gradient(rgba(124, 196, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 196, 255, 0.1) 1px, transparent 1px),
    linear-gradient(rgba(124, 196, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 196, 255, 0.045) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
}
.grid-paper {
  background-image:
    linear-gradient(rgba(16, 35, 59, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 35, 59, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Headlines: expanded, heavy, upper case — site signage. */
.sign {
  font-family: var(--sans); font-weight: 800; font-stretch: 115%;
  font-variation-settings: 'wdth' 115; text-transform: uppercase;
  letter-spacing: -0.01em; line-height: 0.94;
}
.sign em { font-style: normal; color: var(--gold); }
.paper-sec .sign em { color: var(--gold-deep); }

/* Sheet frame with corner ticks and a label on the border. */
.sheet { position: relative; border: 1px solid var(--line); }
.bp .sheet, .sheet.dark { border-color: var(--bp-line); }
.sheet::before, .sheet::after {
  content: ''; position: absolute; width: 14px; height: 14px; pointer-events: none; z-index: 4;
  border-color: var(--gold); border-style: solid;
}
.sheet::before { top: -1px; left: -1px; border-width: 2px 0 0 2px; }
.sheet::after { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }
.sheet-tag {
  position: absolute; top: -9px; left: 18px; padding: 0 8px; line-height: 18px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  background: var(--paper); color: var(--muted); z-index: 5;
}
.bp .sheet-tag { background: var(--bp); color: var(--cyan); }
.sheet-tag.right { left: auto; right: 18px; }

/* Buttons: rectangles with a hard offset shadow. */
.btn {
  display: inline-flex; align-items: center; gap: 12px; padding: 15px 20px; border-radius: var(--r);
  font-weight: 700; font-size: 14.5px; letter-spacing: 0.04em; text-transform: uppercase; white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, transform 0.25s var(--ease), box-shadow 0.2s ease;
}
.btn svg { width: 16px; height: 16px; transition: transform 0.3s var(--ease); }
.btn:hover svg { transform: translate(3px, -3px); }
.btn-gold { background: var(--gold); color: var(--bp); box-shadow: 4px 4px 0 rgba(242, 176, 30, 0.28); }
.btn-gold:hover { background: var(--gold-2); transform: translate(-1px, -1px); box-shadow: 6px 6px 0 rgba(242, 176, 30, 0.3); }
.btn-line { color: var(--on-bp); box-shadow: inset 0 0 0 1px rgba(232, 240, 250, 0.3); }
.btn-line:hover { box-shadow: inset 0 0 0 1px var(--gold); color: var(--gold); }
.btn-ink { background: var(--bp); color: var(--on-bp); box-shadow: 4px 4px 0 rgba(11, 27, 48, 0.25); }
.btn-ink:hover { transform: translate(-1px, -1px); box-shadow: 6px 6px 0 rgba(11, 27, 48, 0.3); }
.btn-paper { color: var(--text); box-shadow: inset 0 0 0 1px var(--line); background: var(--white); }
.btn-paper:hover { box-shadow: inset 0 0 0 1px var(--bp); }
.btn-sm { padding: 10px 14px; font-size: 13px; }

/* Mode switch: Builder / Supplier. */
.mode { display: inline-flex; align-items: center; gap: 2px; padding: 3px; border-radius: var(--r); box-shadow: inset 0 0 0 1px var(--bp-line); }
.mode .mono { padding: 0 8px; color: var(--on-bp-muted); font-size: 11px; }
.mode button { padding: 7px 12px; border-radius: 2px; font-weight: 700; font-size: 12.5px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--on-bp-muted); transition: background 0.2s, color 0.2s; }
.mode button[aria-pressed="true"] { background: var(--gold); color: var(--bp); }

/* ---------- Header: a docked title strip ---------- */
.hdr { position: fixed; inset: 0 0 auto 0; z-index: 60; height: var(--hdr); background: rgba(11, 27, 48, 0.94); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-bottom: 1px solid var(--bp-line); color: var(--on-bp); }
.hdr-in { height: 100%; max-width: 1400px; margin: 0 auto; padding: 0 22px; display: flex; align-items: center; gap: 22px; }
.hdr .logo img { height: 34px; width: auto; }
.hdr-nav { display: flex; gap: 2px; margin-left: 10px; }
.hdr-nav a { display: inline-flex; align-items: baseline; gap: 7px; padding: 8px 12px; font-weight: 600; font-size: 14px; color: var(--on-bp-muted); transition: color 0.2s, box-shadow 0.2s; }
.hdr-nav a:hover { color: var(--on-bp); }
.hdr-nav a.is-here { color: var(--on-bp); box-shadow: inset 0 -2px 0 var(--gold); }
.hdr .mode { margin-left: auto; }
.hdr .menu-btn { display: none; margin-left: auto; font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; padding: 10px 14px; box-shadow: inset 0 0 0 1px var(--bp-line); border-radius: var(--r); color: var(--on-bp); }
.menu-full {
  position: fixed; inset: var(--hdr) 0 0 0; z-index: 59; padding: 28px 22px 40px; overflow-y: auto;
  display: flex; flex-direction: column; gap: 6px;
  opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity 0.25s, transform 0.35s var(--ease), visibility 0.25s;
}
.menu-full.is-open { opacity: 1; visibility: visible; transform: none; }
.menu-full a.big { display: flex; align-items: baseline; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--bp-line); font-weight: 800; font-size: 34px; font-stretch: 115%; font-variation-settings: 'wdth' 115; text-transform: uppercase; }
.menu-full .mode { align-self: flex-start; margin: 4px 0 14px; }
.menu-full .btn { margin-top: 22px; justify-content: space-between; }

/* ---------- Story: scrolling builds the house ---------- */
.story { padding-top: var(--hdr); padding-bottom: 110px; }
.story-grid { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr); max-width: 1400px; margin: 0 auto; padding: 0 22px; gap: 34px; }
.steps { padding: 0 0 18vh; }
.step { min-height: 74vh; display: flex; flex-direction: column; justify-content: center; padding: 60px 0; opacity: 0.35; transition: opacity 0.5s ease; }
.step.is-on, .no-motion .step { opacity: 1; }
.step.intro { min-height: calc(100vh - var(--hdr)); opacity: 1; padding-top: 40px; }
.step .kicker { display: flex; align-items: center; gap: 12px; color: var(--cyan); margin-bottom: 22px; }
.step .kicker::before { content: ''; width: 34px; height: 1px; background: var(--gold); }
.step h1 { font-size: clamp(44px, 5.4vw, 84px); }
.step h2 { font-size: clamp(32px, 3.5vw, 52px); }
.step .lede { margin-top: 24px; font-size: 18.5px; color: var(--on-bp-muted); max-width: 540px; }
.step .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.step .facts { list-style: none; display: grid; gap: 8px; margin-top: 34px; max-width: 520px; }
.step .facts li { display: flex; justify-content: space-between; gap: 14px; padding-bottom: 8px; border-bottom: 1px dashed var(--bp-line); color: var(--on-bp-muted); }
.step .facts li b { color: var(--on-bp); font-weight: 600; text-transform: none; letter-spacing: 0; font-family: var(--sans); font-size: 14px; }
.step p.body { margin-top: 18px; font-size: 17px; color: var(--on-bp-muted); max-width: 520px; }
.step p.body strong { color: var(--on-bp); }
.step .spec { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 22px; }
.step .spec span { padding: 5px 9px; border: 1px solid var(--bp-line); color: var(--cyan); }
.scroll-cue { display: inline-flex; align-items: center; gap: 10px; margin-top: 42px; color: var(--on-bp-muted); }
.scroll-cue i { width: 1px; height: 34px; background: linear-gradient(var(--gold), transparent); }
.motion-ok .scroll-cue i { animation: cue 1.8s ease-in-out infinite; transform-origin: top; }

.stage-col { position: relative; }
.stage-stick { position: sticky; top: calc(var(--hdr) + 16px); height: calc(100vh - var(--hdr) - 32px); display: flex; flex-direction: column; padding-top: 4px; }
.scene-sheet { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.scene { position: relative; flex: 1; min-height: 0; overflow: hidden; }
.scene-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; }
.scene-canvas:active { cursor: grabbing; }
.scene-corner { position: absolute; z-index: 3; color: var(--on-bp-muted); font-size: 11px; pointer-events: none; }
.scene-corner.tr { top: 16px; right: 16px; }
.scene-corner.br { bottom: 14px; right: 16px; display: flex; align-items: center; gap: 8px; }
.north { width: 24px; height: 24px; border: 1px solid var(--bp-line); border-radius: 50%; display: grid; place-items: center; color: var(--gold); font-size: 9px; }
.noscene { display: none; position: absolute; inset: 0; place-items: center; text-align: center; padding: 30px; color: var(--on-bp-muted); }
.no-webgl .noscene { display: grid; }

/* labels pinned to 3D points */
.tags { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.tag {
  position: absolute; left: 0; top: 0; display: none; flex-direction: column; gap: 1px;
  margin: -46px 0 0 14px; padding: 6px 9px; border-left: 2px solid var(--gold);
  background: rgba(11, 27, 48, 0.9); color: var(--on-bp); font-size: 12.5px; font-weight: 600; white-space: nowrap;
  will-change: transform;
}
.tag::before { content: ''; position: absolute; left: -16px; top: 100%; width: 14px; height: 14px; border-left: 1px solid var(--gold); border-bottom: 1px solid var(--gold); transform: skewX(-35deg); transform-origin: top left; }
.tag small { font-family: var(--mono); font-size: 10.5px; color: var(--cyan); letter-spacing: 0.06em; text-transform: uppercase; }
.tag.on { display: flex; }
.tag:not(.focus) { opacity: 0.55; }
.tag.you { background: var(--gold); color: var(--bp); }
.tag.you small { color: var(--bp); }
.scene-tip { position: absolute; left: 0; top: 0; z-index: 4; display: none; flex-direction: column; gap: 2px; padding: 8px 10px; background: var(--paper); color: var(--text); pointer-events: none; font-size: 13px; box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.25); }
.scene-tip .mono { font-size: 10.5px; color: var(--muted); }
.scene-tip.on { display: flex; }

/* stage scrubber */
.scrub { position: relative; display: grid; grid-template-columns: auto repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--bp-line); }
.scrub-line { position: absolute; left: 52px; right: 0; top: -1px; height: 2px; pointer-events: none; }
.scrub-fill { display: block; height: 100%; width: 0; background: var(--gold); transition: width 0.6s var(--ease); }
.scrub [data-play] { width: 52px; display: grid; place-items: center; color: var(--gold); border-right: 1px solid var(--bp-line); }
.scrub [data-play] svg { width: 16px; height: 16px; }
.scrub [data-play] .pause { display: none; }
.scrub [data-play][aria-pressed="true"] .pause { display: block; }
.scrub [data-play][aria-pressed="true"] .play { display: none; }
.scrub [data-stage] { padding: 12px 10px 13px; text-align: left; border-right: 1px solid var(--bp-line); color: var(--on-bp-muted); transition: background 0.2s, color 0.2s; min-width: 0; }
.scrub [data-stage]:last-child { border-right: 0; }
.scrub [data-stage] .mono { display: block; font-size: 10.5px; color: var(--cyan); opacity: 0.7; }
.scrub [data-stage] b { display: block; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.scrub [data-stage].is-built { color: var(--on-bp); }
.scrub [data-stage].is-built .mono { opacity: 1; }
.scrub [data-stage][aria-pressed="true"] { background: rgba(242, 176, 30, 0.12); color: var(--gold); }
.scrub [data-stage]:hover { background: rgba(124, 196, 255, 0.06); }

/* ledger sheet floating on the scene */
.ledger-sheet { position: absolute; left: 16px; bottom: 16px; z-index: 3; width: 286px; padding: 16px; background: var(--paper); color: var(--text); box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.28); }
.ls-head { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 10.5px; }
.ls-head .ok { color: var(--green); }
.ls-head .warn { color: var(--red); }
.ledger-sheet h3 { font-size: 22px; font-weight: 800; font-stretch: 112%; font-variation-settings: 'wdth' 112; text-transform: uppercase; margin: 6px 0 10px; line-height: 1; }
.ls-bar { height: 6px; background: var(--paper-2); }
.ls-bar i { display: block; height: 100%; background: var(--gold); transition: width 0.7s var(--ease); }
.ls-figs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
.ls-figs .mono { display: block; font-size: 10px; color: var(--muted); }
.ls-figs b { font-size: 15px; font-variant-numeric: tabular-nums; }
.ledger-sheet ul { list-style: none; border-top: 1px solid var(--line); }
.ledger-sheet li { display: flex; justify-content: space-between; gap: 10px; padding: 7px 0; border-bottom: 1px dashed var(--line); font-size: 13px; }
.ledger-sheet li b { font-variant-numeric: tabular-nums; white-space: nowrap; }
.ls-foot { display: flex; justify-content: space-between; gap: 8px; margin-top: 10px; font-size: 10.5px; color: var(--muted); }
.ls-foot b { color: var(--text); }
.motion-ok .ledger-sheet h3 { animation: flick 0.45s var(--ease); }

/* supplier: enquiry feed */
.enq-sheet { position: absolute; left: 16px; bottom: 16px; z-index: 3; width: 300px; padding: 14px; background: var(--paper); color: var(--text); box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.28); }
.enq-sheet > .mono { display: flex; justify-content: space-between; color: var(--muted); font-size: 10.5px; margin-bottom: 8px; }
.enq-sheet > .mono i { font-style: normal; color: var(--green); }
.enq-sheet ul { list-style: none; display: grid; gap: 8px; min-height: 120px; }
.enq-sheet li { background: var(--white); padding: 10px 12px; border-left: 2px solid var(--gold); }
.eq-top { display: flex; justify-content: space-between; gap: 8px; font-size: 13.5px; }
.eq-top .mono { color: var(--muted); font-size: 10.5px; }
.enq-sheet p { font-size: 12.5px; color: var(--muted); margin: 2px 0 6px; }
.eq-acts { display: flex; gap: 10px; font-size: 10px; color: var(--text); }
.eq-acts .wa { color: var(--green); }
.motion-ok .enq-sheet li.is-new { animation: drop 0.5s var(--ease); }

/* ---------- Paper sections ---------- */
.sec { padding: 130px 0; }
.sec-head { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 10px 26px; align-items: end; margin-bottom: 56px; }
.sec-head .no { grid-row: span 2; font-family: var(--mono); font-size: 13px; color: var(--gold-deep); padding-bottom: 8px; writing-mode: vertical-rl; transform: rotate(180deg); letter-spacing: 0.2em; }
.sec-head h2 { font-size: clamp(38px, 5.2vw, 76px); color: var(--text); }
.sec-head p { font-size: 18px; color: var(--muted); max-width: 640px; }
.bp .sec-head h2 { color: var(--on-bp); }
.bp .sec-head p { color: var(--on-bp-muted); }
.bp .sec-head .no { color: var(--gold); }

/* ---------- Exploded ledger (CSS 3D) ---------- */
.explode { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 40px; align-items: center; }
.iso-wrap { position: relative; height: 640px; perspective: 1800px; display: grid; place-items: center; cursor: grab; touch-action: pan-y; user-select: none; }
.iso-wrap:active { cursor: grabbing; }
.iso { position: relative; width: 340px; height: 230px; transform-style: preserve-3d; transform: translateY(30px) rotateX(58deg) rotateZ(var(--rz, -38deg)); }
.layer { position: absolute; inset: 0; transform-style: preserve-3d; transform: translateZ(calc(var(--i) * var(--gap, 62px))); transition: transform 0.8s var(--ease); }
.iso-wrap.stacked .layer { --gap: 12px; }
.layer .plate {
  position: absolute; inset: 0; background: var(--white); border: 1px solid var(--line);
  padding: 14px 16px; display: flex; flex-direction: column; gap: 7px; overflow: hidden;
  transition: background 0.3s, box-shadow 0.3s, transform 0.5s var(--ease), color 0.3s;
}
.layer .lbl { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; color: var(--muted); display: flex; justify-content: space-between; }
.layer .ttl { font-weight: 800; font-size: 17px; text-transform: uppercase; font-stretch: 110%; font-variation-settings: 'wdth' 110; }
.layer .rows { display: grid; gap: 5px; }
.layer .rows i { display: block; height: 8px; background: var(--paper-2); }
.layer .rows i:nth-child(1) { width: 72%; background: rgba(242, 176, 30, 0.55); }
.layer .rows i:nth-child(2) { width: 48%; }
.layer .rows i:nth-child(3) { width: 86%; }
.layer.is-on .plate { background: var(--bp); color: var(--on-bp); border-color: var(--gold); box-shadow: 0 0 0 2px var(--gold); transform: translateZ(30px); }
.layer.is-on .lbl { color: var(--gold); }
.layer.is-on .rows i { background: rgba(124, 196, 255, 0.25); }
.layer.is-on .rows i:nth-child(1) { background: var(--gold); }
.iso-ground { position: absolute; inset: -46px; border: 1px dashed rgba(16, 35, 59, 0.25); transform: translateZ(-2px); }
.layer-list { display: grid; gap: 2px; }
.layer-list button { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 4px 12px; text-align: left; padding: 14px; border-left: 2px solid transparent; transition: background 0.2s, border-color 0.2s; }
.layer-list button .mono { color: var(--gold-deep); grid-row: span 2; padding-top: 3px; }
.layer-list button b { font-size: 17px; font-weight: 700; }
.layer-list button span.d { color: var(--muted); font-size: 14.5px; display: none; }
.layer-list button[aria-pressed="true"] { background: var(--white); border-left-color: var(--gold); }
.layer-list button[aria-pressed="true"] span.d { display: block; }
.layer-list button:hover { background: rgba(255, 255, 255, 0.6); }
.explode-ctl { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; align-items: center; color: var(--muted); }

/* ---------- Calculator in 3D ---------- */
.calc { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); background: var(--white); }
.calc .box { padding: 30px; }
.calc-tabs { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); margin-bottom: 26px; }
.calc-tabs button { padding: 11px 8px; font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); border-right: 1px solid var(--line); }
.calc-tabs button:last-child { border-right: 0; }
.calc-tabs button[aria-selected="true"] { background: var(--bp); color: var(--gold); }
.field { margin-bottom: 18px; }
.field label { display: flex; justify-content: space-between; align-items: baseline; font-weight: 600; font-size: 14px; margin-bottom: 8px; }
.field label output { font-family: var(--mono); font-size: 13px; color: var(--text); }
.field input[type="range"] { width: 100%; accent-color: var(--gold); height: 22px; }
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg button { padding: 8px 12px; font-family: var(--mono); font-size: 12px; box-shadow: inset 0 0 0 1px var(--line); }
.seg button[aria-pressed="true"] { background: var(--gold); box-shadow: none; color: var(--bp); font-weight: 600; }
.results { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); margin-top: 8px; }
.res { padding: 14px; border-right: 1px solid var(--line); min-width: 0; }
.res:last-child { border-right: 0; }
.res .k { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.res .v { font-weight: 800; font-size: 28px; font-stretch: 110%; font-variation-settings: 'wdth' 110; font-variant-numeric: tabular-nums; line-height: 1.1; margin-top: 4px; }
.res .u { font-size: 12px; color: var(--gold-deep); font-weight: 600; }
.calc .note { font-size: 13px; color: var(--muted); margin-top: 14px; }
.model-box { position: relative; background: var(--bp); color: var(--on-bp); min-height: 540px; display: flex; flex-direction: column; }
.model-cap { display: flex; justify-content: space-between; gap: 10px; padding: 16px 18px; color: var(--on-bp-muted); border-bottom: 1px solid var(--bp-line); }
.model-cap b { color: var(--gold); font-weight: 500; }
.model-stage { position: relative; flex: 1; min-height: 360px; perspective: 1400px; overflow: hidden; cursor: grab; touch-action: pan-y; user-select: none; }
.model-stage:active { cursor: grabbing; }
.model { position: absolute; left: 50%; top: 56%; width: 0; height: 0; transform-style: preserve-3d; transform: scale(var(--sc, 1)) rotateX(-24deg) rotateY(var(--ry, -34deg)); }
.cube { position: absolute; left: 0; top: 0; transform-style: preserve-3d; }
.cube .f { position: absolute; left: 0; top: 0; border: 1px solid rgba(255, 255, 255, 0.35); transition: width 0.35s var(--ease), height 0.35s var(--ease), transform 0.35s var(--ease); }
.mat-concrete { background: #aab2bb repeating-linear-gradient(45deg, transparent 0 8px, rgba(11, 27, 48, 0.1) 8px 9px); }
.mat-concrete.dk { background-color: #848e9a; }
.mat-brick { background-color: #b5562b; background-image: linear-gradient(#e2d4bf 1px, transparent 1px), linear-gradient(90deg, #e2d4bf 1px, transparent 1px); background-size: 26px 10px, 26px 20px; }
.mat-brick.dk { background-color: #93441f; }
.mat-floor { background-color: #e9e4da; }
.mat-floor.dk { background-color: #848e9a; }
.model-floor { position: absolute; left: -300px; top: -300px; width: 600px; height: 600px; transform: rotateX(90deg); background-image: linear-gradient(rgba(124, 196, 255, 0.18) 1px, transparent 1px), linear-gradient(90deg, rgba(124, 196, 255, 0.18) 1px, transparent 1px); background-size: 24px 24px; -webkit-mask-image: radial-gradient(circle, #000 25%, transparent 68%); mask-image: radial-gradient(circle, #000 25%, transparent 68%); pointer-events: none; }
.dims { position: absolute; left: 18px; bottom: 16px; display: grid; gap: 4px; color: var(--on-bp-muted); z-index: 2; }
.dims b { color: var(--on-bp); font-weight: 500; }
.model-hint { position: absolute; right: 18px; bottom: 16px; color: var(--on-bp-muted); z-index: 2; }
.model-more { display: flex; flex-wrap: wrap; gap: 6px; padding: 14px 18px; border-top: 1px solid var(--bp-line); }
.model-more span { font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.06em; padding: 4px 8px; border: 1px solid var(--bp-line); color: var(--on-bp-muted); }

/* ---------- Schedule of features ---------- */
.schedule { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.sch { position: relative; padding: 22px 22px 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--white); overflow: hidden; isolation: isolate; min-height: 230px; }
.sch::before { content: ''; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity 0.3s; background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 50%), rgba(242, 176, 30, 0.16), transparent 70%); }
.sch::after { content: ''; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity 0.3s; padding: 1px; background: radial-gradient(200px circle at var(--mx, 50%) var(--my, 50%), var(--gold), transparent 70%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.sch:hover::before, .sch:hover::after { opacity: 1; }
.sch .code { display: flex; justify-content: space-between; color: var(--gold-deep); }
.sch .code span:last-child { color: var(--muted); }
.sch h3 { font-size: 21px; font-weight: 800; font-stretch: 108%; font-variation-settings: 'wdth' 108; text-transform: uppercase; line-height: 1.05; margin: 26px 0 10px; }
.sch p { color: var(--muted); font-size: 14.5px; }
.sch.wide { grid-column: span 2; }

/* ---------- Ask AI ---------- */
.ai { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 50px; align-items: center; }
.prompts { display: grid; gap: 6px; margin-top: 8px; }
.prompts button { display: grid; grid-template-columns: 36px minmax(0, 1fr); align-items: center; text-align: left; padding: 14px 16px; font-size: 15.5px; color: var(--on-bp); box-shadow: inset 0 0 0 1px var(--bp-line); transition: box-shadow 0.2s, background 0.2s; }
.prompts button .mono { color: var(--gold); }
.prompts button:hover { background: rgba(124, 196, 255, 0.05); }
.prompts button[aria-pressed="true"] { box-shadow: inset 0 0 0 1px var(--gold), inset 3px 0 0 var(--gold); }
.phone-stage { perspective: 1400px; display: grid; place-items: center; padding: 20px 0; }
.phone { width: 340px; max-width: 100%; height: 600px; border-radius: 40px; padding: 12px; background: #050d18; box-shadow: 0 0 0 1px rgba(124, 196, 255, 0.25), 30px 40px 60px -30px rgba(0, 0, 0, 0.8); transform: rotateY(var(--ty, -14deg)) rotateX(var(--tx, 6deg)); transition: transform 0.25s ease-out; }
.phone-scr { height: 100%; border-radius: 30px; background: var(--paper); color: var(--text); display: flex; flex-direction: column; overflow: hidden; }
.phone-top { display: flex; align-items: center; gap: 10px; padding: 18px 16px 12px; background: var(--bp); color: var(--on-bp); }
.phone-top .spark { width: 30px; height: 30px; display: grid; place-items: center; background: var(--gold); color: var(--bp); border-radius: 8px; }
.phone-top .spark svg { width: 16px; height: 16px; }
.phone-top b { font-size: 14px; display: block; }
.phone-top small { font-family: var(--mono); font-size: 10px; color: var(--cyan); letter-spacing: 0.06em; }
.chat-body { flex: 1; display: flex; flex-direction: column; gap: 10px; padding: 14px; overflow: hidden; }
.msg { max-width: 88%; padding: 10px 13px; font-size: 13.5px; border-radius: 14px; }
.msg.me { align-self: flex-end; background: var(--bp); color: var(--on-bp); border-bottom-right-radius: 3px; }
.msg.bot { align-self: flex-start; background: var(--white); border-bottom-left-radius: 3px; box-shadow: 0 1px 0 var(--line); }
.motion-ok .msg { animation: drop 0.4s var(--ease); }
.typing { display: inline-flex; gap: 4px; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: dot 1s ease infinite; }
.typing i:nth-child(2) { animation-delay: 0.15s; }
.typing i:nth-child(3) { animation-delay: 0.3s; }
.form-card { margin-top: 8px; background: var(--paper); padding: 10px 12px; border-left: 2px solid var(--gold); }
.form-card .ft { display: flex; justify-content: space-between; gap: 8px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.form-card .row { display: flex; justify-content: space-between; gap: 10px; padding: 5px 0; border-bottom: 1px dashed var(--line); font-size: 12.5px; }
.form-card .row:last-of-type { border-bottom: 0; }
.form-card .row span { color: var(--muted); }
.form-card .row b { text-align: right; }
.form-card .row b.hl { background: rgba(242, 176, 30, 0.3); padding: 0 4px; }
.form-card .go { display: flex; gap: 6px; margin-top: 8px; }
.form-card .go span { flex: 1; text-align: center; padding: 7px; font-size: 11.5px; font-weight: 700; text-transform: uppercase; white-space: nowrap; box-shadow: inset 0 0 0 1px var(--line); background: var(--white); }
.form-card .go span.p { background: var(--bp); color: var(--gold); box-shadow: none; }
.chat-input { display: flex; align-items: center; gap: 8px; margin: 0 12px 14px; padding: 6px 6px 6px 14px; border-radius: 999px; background: var(--white); font-size: 12.5px; color: var(--muted); box-shadow: 0 0 0 1px var(--line); }
.chat-input span { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-input .mic { width: 34px; height: 34px; border-radius: 50%; background: var(--gold); color: var(--bp); display: grid; place-items: center; flex: none; }
.chat-input .mic svg { width: 15px; height: 15px; }

/* ---------- Team matrix ---------- */
.matrix-wrap { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); background: var(--white); }
.matrix { width: 100%; border-collapse: collapse; }
.matrix th, .matrix td { border-bottom: 1px solid var(--line); padding: 0; }
.matrix thead th { padding: 12px 4px; vertical-align: bottom; }
.matrix thead th:first-child { text-align: left; padding-left: 22px; color: var(--muted); }
.matrix thead button { display: grid; justify-items: center; gap: 6px; width: 100%; padding: 8px 4px; border-radius: var(--r); }
.matrix thead button .av { width: 38px; height: 38px; display: grid; place-items: center; font-weight: 800; font-size: 12.5px; background: var(--paper); }
.matrix thead button b { font-size: 13px; }
.matrix thead button small { font-family: var(--mono); font-size: 9.5px; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
.matrix thead button[aria-pressed="true"] { background: var(--bp); color: var(--on-bp); }
.matrix thead button[aria-pressed="true"] .av { background: var(--gold); color: var(--bp); }
.matrix thead button[aria-pressed="true"] small { color: var(--cyan); }
.matrix tbody th { text-align: left; font-weight: 500; font-size: 14px; padding: 10px 10px 10px 22px; }
.matrix tbody td { text-align: center; padding: 6px 0; }
.matrix td.col-on { background: rgba(242, 176, 30, 0.08); }
.cell { width: 30px; height: 30px; display: inline-grid; place-items: center; border-radius: 2px; box-shadow: inset 0 0 0 1px var(--line); transition: background 0.2s, box-shadow 0.2s; color: #fff; }
.cell svg { width: 15px; height: 15px; opacity: 0; transform: scale(0.6); transition: opacity 0.2s, transform 0.3s var(--ease); }
.cell[aria-checked="true"] { background: var(--green); box-shadow: none; }
.cell[aria-checked="true"] svg { opacity: 1; transform: none; }
.cell:disabled { cursor: not-allowed; }
.cell[aria-checked="true"]:disabled { background: rgba(46, 139, 87, 0.72); }
.preview { padding: 24px; background: var(--bp); color: var(--on-bp); display: flex; flex-direction: column; gap: 12px; }
.preview .mono { color: var(--cyan); }
.preview .scr { display: grid; gap: 6px; }
.pv { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 11px 12px; background: var(--bp-2); border: 1px solid var(--bp-line); font-size: 13.5px; transition: opacity 0.3s; }
.pv b { font-variant-numeric: tabular-nums; }
.pv b.hid { letter-spacing: 0.14em; color: var(--on-bp-muted); }
.pv.off { opacity: 0.38; }
.pv .lk { font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; }
.preview .note { color: var(--on-bp-muted); font-size: 13.5px; }

/* ---------- Notes (FAQ) ---------- */
.notes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.notes details { border-top: 1px solid var(--line); }
.notes summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 54px minmax(0, 1fr) 24px; gap: 8px; align-items: baseline; padding: 20px 0; font-weight: 700; font-size: 17px; }
.notes summary::-webkit-details-marker { display: none; }
.notes summary .mono { color: var(--gold-deep); }
.notes summary i { justify-self: end; width: 14px; height: 14px; position: relative; }
.notes summary i::before, .notes summary i::after { content: ''; position: absolute; left: 0; top: 6px; width: 14px; height: 2px; background: var(--text); transition: transform 0.3s var(--ease); }
.notes summary i::after { transform: rotate(90deg); }
.notes details[open] summary i::after { transform: rotate(0); }
.notes details p { padding: 0 0 22px 62px; color: var(--muted); font-size: 15.5px; }
.notes details p a { text-decoration: underline; }

/* ---------- Contact form ---------- */
.cform { background: var(--white); padding: 34px 30px 30px; max-width: 920px; }
.cform-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 22px; }
.cform .field .opt { font-family: var(--mono); font-size: 10.5px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.cform input, .cform select, .cform textarea {
  width: 100%; padding: 13px 14px; border-radius: var(--r); border: 0; background: var(--paper); color: var(--text);
  font: inherit; font-size: 15.5px; box-shadow: inset 0 0 0 1px var(--line); transition: box-shadow 0.2s ease;
}
.cform input, .cform select { height: 48px; padding-top: 0; padding-bottom: 0; }
.cform textarea { resize: vertical; min-height: 140px; }
.cform input:focus, .cform select:focus, .cform textarea:focus { outline: none; box-shadow: inset 0 0 0 2px var(--gold); background: var(--white); }
.cform-trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.cform-check:empty { display: none; }
.cform-check { margin-bottom: 18px; }
.cform-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; }
.cform-foot .btn[disabled] { opacity: 0.6; cursor: wait; }
.cform-status { font-size: 14.5px; color: var(--muted); min-width: 0; }
.cform-status a { color: var(--gold-deep); text-decoration: underline; text-underline-offset: 3px; }
.cform-status.ok { color: var(--green); font-weight: 600; }

/* ---------- CTA ---------- */
.cta { background: var(--gold); color: var(--bp); padding: 100px 0 90px; position: relative; overflow: hidden; }
.cta .dim { display: flex; align-items: center; gap: 12px; color: rgba(11, 27, 48, 0.7); margin-bottom: 26px; }
.cta .dim i { flex: 1; height: 1px; background: currentColor; position: relative; }
.cta .dim i::before, .cta .dim i::after { content: ''; position: absolute; top: -6px; width: 1px; height: 13px; background: currentColor; }
.cta .dim i::before { left: 0; }
.cta .dim i::after { right: 0; }
.cta h2 { font-size: clamp(42px, 7vw, 108px); }
.cta h2 em { color: var(--white); }
.cta p { font-size: 19px; margin-top: 18px; max-width: 620px; color: rgba(11, 27, 48, 0.78); }
.cta .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.cta .btn-paper { background: transparent; box-shadow: inset 0 0 0 1px rgba(11, 27, 48, 0.4); }

/* ---------- Footer: title block ---------- */
.ftr { padding: 70px 0 28px; }
.ftr .mail { display: block; font-weight: 800; font-stretch: 118%; font-variation-settings: 'wdth' 118; text-transform: uppercase; font-size: clamp(18px, 4.4vw, 62px); line-height: 1; letter-spacing: -0.01em; color: var(--on-bp); transition: color 0.2s; white-space: nowrap; }
.ftr .mail:hover { color: var(--gold); }
.ftr .mail-cap { color: var(--cyan); margin-bottom: 14px; display: block; }
.tblock { display: grid; grid-template-columns: 1.3fr repeat(3, 1fr); margin-top: 56px; border: 1px solid var(--bp-line); }
.tblock > div { padding: 18px 20px; border-right: 1px solid var(--bp-line); }
.tblock > div:last-child { border-right: 0; }
.tblock .mono { color: var(--cyan); font-size: 10.5px; display: block; margin-bottom: 10px; }
.tblock img { height: 40px; width: auto; margin-bottom: 12px; }
.tblock p { font-size: 14px; color: var(--on-bp-muted); }
.tblock ul { list-style: none; display: grid; gap: 8px; }
.tblock ul a { font-size: 14.5px; color: var(--on-bp); opacity: 0.85; }
.tblock ul a:hover { opacity: 1; color: var(--gold); }
.tbottom { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--bp-line); border-top: 0; }
.tbottom div { padding: 10px 20px; border-right: 1px solid var(--bp-line); color: var(--on-bp-muted); font-size: 12.5px; }
.tbottom div:last-child { border-right: 0; }
.tbottom .mono { display: block; font-size: 9.5px; color: var(--cyan); margin-bottom: 2px; }

/* ---------- reveal ---------- */
.motion-ok [data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.8s var(--ease), transform 0.9s var(--ease); transition-delay: var(--d, 0s); }
.motion-ok [data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- Under construction: caution tapes ---------- */
.tapes { position: relative; z-index: 6; height: 170px; margin: -85px 0 -85px; pointer-events: none; }
.tape {
  position: absolute; left: -6vw; width: 112vw; top: 50%; pointer-events: auto;
  background: var(--gold); color: var(--bp); overflow: hidden; padding: 13px 0;
  box-shadow: 0 18px 30px -18px rgba(0, 0, 0, 0.55);
}
.tape::before, .tape::after {
  content: ''; position: absolute; left: 0; right: 0; height: 7px;
  background: repeating-linear-gradient(-45deg, var(--bp) 0 13px, transparent 13px 26px);
}
.tape::before { top: 0; }
.tape::after { bottom: 0; }
.tape.front { transform: translateY(-50%) rotate(-2.4deg); }
.tape.back { transform: translateY(-50%) rotate(2.8deg); background: #d99a14; filter: saturate(0.9); }
.tape .track { display: flex; width: max-content; }
.tape .it {
  display: inline-flex; align-items: center; gap: 12px; padding: 0 22px; white-space: nowrap;
  font-weight: 800; font-stretch: 112%; font-variation-settings: 'wdth' 112; text-transform: uppercase; font-size: 20px; letter-spacing: 0.01em;
}
.tape .it::after { content: ''; width: 9px; height: 9px; margin-left: 22px; background: var(--bp); transform: rotate(45deg); }
.tape .it small { font-family: var(--mono); font-weight: 500; font-size: 11.5px; letter-spacing: 0.06em; padding: 3px 8px; background: rgba(11, 27, 48, 0.12); border-radius: 2px; }
.tape.back .it { font-size: 17px; letter-spacing: 0.12em; }
.tape.back .it.sm { font-family: var(--mono); font-weight: 600; font-size: 13px; letter-spacing: 0.14em; }
.motion-ok .tape.front .track { animation: tape 52s linear infinite; }
.motion-ok .tape.back .track { animation: tape 70s linear infinite reverse; }
.tape:hover .track { animation-play-state: paused; }
@keyframes tape { to { transform: translateX(-50%); } }
@media (max-width: 640px) {
  .tapes { height: 130px; margin: -65px 0 -65px; }
  .tape { padding: 10px 0; }
  .tape .it { font-size: 16px; padding: 0 16px; }
  .tape.back .it { font-size: 14px; }
  .tape.front { transform: translateY(-50%) rotate(-5deg); }
  .tape.back { transform: translateY(-50%) rotate(6deg); }
}

@keyframes cue { 0%, 100% { transform: scaleY(0.3); } 50% { transform: scaleY(1); } }
@keyframes flick { from { opacity: 0; transform: translateY(6px); } }
@keyframes drop { from { opacity: 0; transform: translateY(-10px); } }
@keyframes dot { 0%, 100% { opacity: 0.3; } 40% { opacity: 1; transform: translateY(-2px); } }

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .hdr-nav, .hdr .mode, .hdr .hdr-cta { display: none; }
  .hdr .menu-btn { display: inline-flex; }
  .schedule { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 960px) {
  .story-grid { grid-template-columns: minmax(0, 1fr); gap: 0; padding: 0; }
  .stage-col { order: -1; position: sticky; top: var(--hdr); z-index: 5; height: 48vh; background: var(--bp); border-bottom: 1px solid var(--bp-line); }
  .stage-stick { position: relative; top: 0; height: 100%; padding: 0; }
  .scene-sheet { border: 0; }
  .scene-sheet::before, .scene-sheet::after, .scene-sheet .sheet-tag { display: none; }
  .steps { padding: 0 20px 10vh; }
  .step { min-height: 60vh; padding: 40px 0; }
  .step.intro { min-height: auto; padding: 36px 0 60px; }
  .ledger-sheet { left: 8px; bottom: 8px; width: auto; max-width: 64%; padding: 10px 12px; box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.28); }
  .ledger-sheet h3 { font-size: 15px; margin: 3px 0 6px; }
  .ledger-sheet ul, .ls-foot, .ls-figs { display: none; }
  .enq-sheet { left: 8px; bottom: 8px; width: min(64%, 280px); padding: 10px; }
  .enq-sheet ul { min-height: 0; }
  .enq-sheet li:nth-child(n+2) { display: none; }
  .scrub [data-stage] b { font-size: 11px; }
  .scrub [data-stage] { padding: 9px 5px; }
  .scrub [data-play] { width: 40px; }
  .scrub-line { left: 40px; }
  .scene-corner.tr, .scene-corner.br { display: none; }
  .explode, .ai, .calc, .matrix-wrap { grid-template-columns: minmax(0, 1fr); }
  .iso-wrap { height: 480px; }
  .notes { grid-template-columns: minmax(0, 1fr); }
  .tblock { grid-template-columns: 1fr 1fr; }
  .tblock > div:first-child { grid-column: 1 / -1; border-right: 0; border-bottom: 1px solid var(--bp-line); }
  .tbottom { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .sec { padding: 90px 0; }
  .sec-head { grid-template-columns: minmax(0, 1fr); }
  .sec-head .no { writing-mode: horizontal-tb; transform: none; grid-row: auto; padding: 0; }
  .cform { padding: 28px 18px 22px; }
  .cform-grid { grid-template-columns: minmax(0, 1fr); }
  .cform-foot .btn { flex: 1 1 auto; justify-content: space-between; }
  .step h1 { font-size: 42px; }
  .step h2 { font-size: 29px; }
  .step .lede { font-size: 16.5px; }
  .step .actions .btn { flex: 1 1 auto; justify-content: space-between; }
  .scrub [data-stage] .mono { display: none; }
  .iso-wrap { height: 400px; }
  .iso { width: 230px; height: 160px; transform: translateY(50px) rotateX(58deg) rotateZ(var(--rz, -38deg)); }
  .iso-wrap .layer { --gap: 46px; }
  .iso-wrap.stacked .layer { --gap: 10px; }
  .layer .rows { display: none; }
  .layer .ttl { font-size: 13px; }
  .schedule { grid-template-columns: minmax(0, 1fr); }
  .sch.wide { grid-column: auto; }
  .sch { min-height: 0; }
  .calc .box { padding: 20px 16px; }
  .res .v { font-size: 21px; }
  .res { padding: 10px; }
  .model-box { min-height: 420px; }
  .phone { height: 540px; }
  .matrix thead button small { display: none; }
  .matrix thead th:first-child { padding-left: 12px; }
  .matrix tbody th { padding-left: 12px; font-size: 13px; }
  .matrix thead button .av { width: 32px; height: 32px; }
  .notes summary { grid-template-columns: 44px minmax(0, 1fr) 18px; font-size: 16px; }
  .notes details p { padding-left: 52px; }
  .cta { padding: 70px 0 64px; }
  .cta .actions .btn { flex: 1 1 auto; justify-content: space-between; }
  .tblock, .tbottom { grid-template-columns: minmax(0, 1fr); }
  .tblock > div, .tbottom div { border-right: 0; border-bottom: 1px solid var(--bp-line); }
  .menu-full a.big { font-size: 28px; }
}
.ai .sec-head h2 { font-size: clamp(34px, 4vw, 58px); }