/* ============================================================
   imec v2 — "Loud & Clear"  ·  DESIGN-v2.md is the contract.
   Tokens → layout → components → sections → motion states → media queries.
   Depth strategy: borders-only (single exception: the sample doc shadow).
   ============================================================ */

:root {
  --paper: #FFF8EC;
  --paper-2: #FBEFD6;
  --ink: #14110F;
  --marigold: #F5A524;
  --marigold-hover: #F7B240;
  --teal: #0B4F6C;
  --chilli: #E4442B;

  --border: 1.5px solid var(--ink);
  --border-paper: 1.5px solid rgba(255, 248, 236, 0.4);
  --r-pill: 999px;
  --r-card: 20px;
  --r-media: 28px;

  --font-display: "Clash Display", "Noto Sans SC", sans-serif;
  --font-body: "Satoshi", "Noto Sans SC", sans-serif;
  --font-mono: "Geist Mono", monospace;

  --h1: clamp(42px, 5.4vw, 84px);
  --h2: clamp(36px, 4.5vw, 72px);
  --h3: clamp(24px, 2.2vw, 32px);
  --body: 18px;

  --sect-pad: clamp(96px, 10vw, 160px);
  --gutter: clamp(20px, 4vw, 64px);
  --ease-emph: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--body);
  line-height: 1.5;
  overflow-x: hidden;
}
img, video, canvas { max-width: 100%; display: block; }
a { color: inherit; }

.container { max-width: 1440px; margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.beat { padding-top: var(--sect-pad); padding-bottom: var(--sect-pad); position: relative; }

.h2 { font-family: var(--font-display); font-weight: 600; font-size: var(--h2); line-height: 1.0; letter-spacing: -0.01em; margin: 0 0 24px; max-width: 100%; overflow-wrap: break-word; }
.h3 { font-family: var(--font-display); font-weight: 600; font-size: var(--h3); line-height: 1.15; margin: 0 0 16px; }
.eyebrow { font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.65; margin: 0 0 20px; }
.mono { font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.06em; }
.body-l { font-size: 19px; line-height: 1.55; opacity: 0.8; max-width: 36em; }
.body-m { font-size: 17px; line-height: 1.55; opacity: 0.8; max-width: 36em; }
p { margin-top: 0; }
em { font-style: italic; }

.sr-only { position: absolute; width: 1px; height: 1px; clip-path: inset(50%); overflow: hidden; white-space: nowrap; }
.skip { position: fixed; top: -60px; left: 16px; z-index: 300; background: var(--ink); color: var(--paper); padding: 12px 20px; border-radius: var(--r-pill); transition: top 200ms; }
.skip:focus-visible { top: 16px; }

/* ---------- Buttons & links ---------- */
.btn {
  display: inline-block; font-family: var(--font-body); font-weight: 700; font-size: 16px;
  padding: 16px 26px; border-radius: var(--r-pill); border: none; cursor: pointer;
  text-decoration: none; text-align: center; color: var(--ink); line-height: 1.2;
  transition: background 150ms ease-out, transform 150ms ease-out;
}
.btn-primary { background: var(--marigold); }
.btn-primary:hover { background: var(--marigold-hover); transform: translateY(-1px); }
.btn-teal { background: var(--teal); color: var(--paper); }
.btn-teal:hover { filter: brightness(1.1); }
.btn-paper { background: var(--paper); color: var(--teal); }
.btn-paper:hover { transform: translateY(-1px); }
.btn:active { transform: scale(0.98); }
.btn:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible, button:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }
.ask .btn:focus-visible, .ask a:focus-visible, .ask input:focus-visible { outline-color: var(--ink); }

.textlink { font-weight: 500; text-decoration: underline; text-decoration-thickness: 1.5px; text-underline-offset: 4px; transition: text-decoration-color 150ms; }
.textlink:hover { text-decoration-color: var(--marigold); }

/* ---------- Capture (fused input+button) ---------- */
.capture { display: flex; align-items: center; background: var(--paper); border: var(--border); border-radius: var(--r-pill); padding: 4px; max-width: 600px; }
.capture input { flex: 1; min-width: 0; border: none; background: transparent; font-family: var(--font-body); font-size: 17px; padding: 14px 18px; color: var(--ink); }
.capture input:focus-visible { outline-offset: -2px; }
.capture .btn { white-space: nowrap; flex-shrink: 0; }
.reassure { opacity: 0.75; margin-top: 12px; text-transform: uppercase; font-size: 11px; letter-spacing: 0.08em; }

/* ---------- Nav ---------- */
.nav { position: fixed; top: 20px; left: 0; right: 0; z-index: 200; display: flex; justify-content: center; pointer-events: none; will-change: transform; }
.nav-pill {
  pointer-events: auto; display: flex; align-items: center; gap: 26px;
  background: rgba(255, 248, 236, 0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: var(--border); border-radius: var(--r-pill); padding: 8px 8px 8px 20px;
}
.brand img { height: 34px; width: auto; }
.nav-links { display: flex; gap: 22px; }
.nav-links a { text-decoration: none; font-weight: 500; font-size: 15px; opacity: 0.8; white-space: nowrap; transition: opacity 150ms; }
.nav-links a:hover { opacity: 1; }
.lang { font-family: var(--font-mono); font-size: 12px; display: flex; gap: 6px; align-items: center; white-space: nowrap; }
.lang a { text-decoration: none; opacity: 0.6; }
.lang a.is-active, .lang a:hover { opacity: 1; }
.nav-cta { padding: 12px 20px; font-size: 15px; white-space: nowrap; }
.burger { display: none; }
.mobile-menu { display: none; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100dvh; display: flex; align-items: flex-end; background: var(--teal); overflow: hidden; }
.hero-film { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-grad { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11, 79, 108, 0.92) 0%, rgba(11, 79, 108, 0.72) 35%, rgba(11, 79, 108, 0.25) 60%, rgba(11, 79, 108, 0) 80%); }
.hero-ghost { position: absolute; right: -2vw; top: 12vh; font-family: var(--font-display); font-weight: 700; font-size: 26vw; line-height: 1; color: rgba(255, 248, 236, 0.10); letter-spacing: -0.02em; user-select: none; pointer-events: none; }
.hero-inner { position: relative; z-index: 2; color: var(--paper); padding-bottom: clamp(72px, 10vh, 120px); padding-top: 140px; width: 100%; }
.hero-eyebrow { color: var(--paper); opacity: 0.8; }
.hero-h1 { font-family: var(--font-display); font-weight: 700; font-size: var(--h1); line-height: 0.97; letter-spacing: -0.01em; margin: 0 0 22px; max-width: 10.5em; overflow-wrap: break-word; }
.hero-h1 em { font-style: normal; color: var(--marigold); }
.hero-sub { font-size: 19px; line-height: 1.5; opacity: 0.9; max-width: 34em; margin-bottom: 28px; }
.hero-capture { margin-bottom: 0; }
.hero-link { display: inline-block; margin-top: 24px; color: var(--paper); }
.hero-corner { position: absolute; right: var(--gutter); bottom: 32px; z-index: 2; display: flex; align-items: center; gap: 18px; color: var(--paper); }
.scroll-cue { letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.8; }
.sound { background: transparent; border: var(--border-paper); border-radius: 50%; width: 40px; height: 40px; cursor: pointer; position: relative; }
.sound-ic { position: absolute; inset: 0; margin: auto; width: 14px; height: 14px; background: currentColor; color: var(--paper); clip-path: polygon(0 30%, 40% 30%, 100% 0, 100% 100%, 40% 70%, 0 70%); opacity: 0.5; }
.sound[aria-pressed="true"] .sound-ic { opacity: 1; }

/* ---------- Ticker ---------- */
.ticker { background: var(--teal); color: var(--paper); padding: 14px 0 18px; overflow: hidden; position: relative; }
.ticker-cap { margin: 0 0 8px var(--gutter); opacity: 0.6; text-transform: uppercase; font-size: 11px; letter-spacing: 0.1em; }
.ticker-track { display: flex; width: max-content; will-change: transform; }
.ticker-list { display: flex; gap: 56px; list-style: none; margin: 0; padding: 0 28px; align-items: baseline; flex-shrink: 0; }
.ticker-list li { display: flex; gap: 12px; align-items: baseline; white-space: nowrap; }
.ticker-list b { font-family: var(--font-display); font-weight: 700; font-size: 28px; }
.ticker-list span { font-size: 15px; opacity: 0.9; }
.ticker-list i { font-family: var(--font-mono); font-style: normal; font-size: 12px; opacity: 0.65; }
.ticker-list li::after { content: "◆"; color: var(--marigold); font-size: 10px; margin-left: 44px; align-self: center; }

/* ---------- Beat 3 · Problem ---------- */
.problem { background: var(--chilli); color: var(--ink); overflow: hidden; }
.problem .bg-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.18; filter: saturate(0.2); }
.problem-grid { position: relative; display: grid; grid-template-columns: 7fr 5fr; gap: clamp(32px, 4vw, 64px); align-items: center; }
.pains { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 28px; }
.pains li { display: flex; gap: 18px; align-items: flex-start; }
.pains .idx { font-family: var(--font-display); font-weight: 700; font-size: clamp(56px, 5vw, 96px); line-height: 0.9; color: rgba(255, 248, 236, 0.35); flex-shrink: 0; }
.pains h3 { font-size: 22px; font-weight: 700; margin: 6px 0 6px; font-family: var(--font-body); }
.pains p { margin: 0; opacity: 0.85; font-size: 16px; }
.problem-close { grid-column: 1 / -1; text-transform: uppercase; letter-spacing: 0.12em; margin: 40px 0 8px; }
.problem .textlink { grid-column: 1 / -1; justify-self: start; }

/* ---------- Beat 4 · How (sticky split + voices) ---------- */
.how { background: var(--paper); padding: 0; }
.how-wrap { display: grid; grid-template-columns: 45% 55%; min-height: 100vh; }
.how-left { display: flex; flex-direction: column; justify-content: center; padding: 48px 0 48px var(--gutter); max-width: 640px; width: 100%; justify-self: end; padding-right: clamp(24px, 3vw, 56px); }
.steps { list-style: none; margin: 32px 0; padding: 0; display: flex; flex-direction: column; gap: 28px; }
.step { opacity: 0.35; transition: opacity 300ms ease-in-out; }
.step.is-active { opacity: 1; }
.step-n { color: var(--teal); display: block; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.14em; }
.step h3 { font-family: var(--font-display); font-weight: 600; font-size: 28px; margin: 0 0 8px; }
.step p { margin: 0; opacity: 0.85; font-size: 16px; line-height: 1.55; max-width: 34em; }
.pull { font-family: var(--font-display); font-weight: 600; font-size: 22px; margin: 8px 0 24px; }
.cta-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.micro { opacity: 0.6; text-transform: uppercase; letter-spacing: 0.1em; }
.how-right { position: relative; min-height: 100vh; }
#voices-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.voices-video { display: none; border-radius: var(--r-media); overflow: hidden; }

/* ---------- Beat 5 · Bento ---------- */
.get { background: var(--paper); }
.bento { display: grid; grid-template-columns: 7fr 5fr; grid-template-rows: 1fr 1fr; gap: 24px; margin: 40px 0 32px; }
.bento-card { border: var(--border); border-radius: var(--r-card); background: var(--paper-2); padding: 28px; position: relative; }
.bento-card .dot { display: block; width: 14px; height: 14px; border-radius: 50%; background: var(--marigold); margin-bottom: 18px; }
.bento-card h3 { font-family: var(--font-body); font-weight: 700; font-size: 22px; margin: 0 0 10px; }
.bento-card p { margin: 0; opacity: 0.8; font-size: 16px; max-width: 30em; }
.bento-media { grid-row: 1 / 3; padding: 0; overflow: hidden; border-radius: var(--r-media); background: var(--teal); display: flex; align-items: flex-end; min-height: 420px; }
.card-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 600ms var(--ease-emph); }
.bento-media:hover .card-video { transform: scale(1.03); }
.bento-copy { position: relative; z-index: 1; padding: 28px; color: var(--paper); width: 100%; background: linear-gradient(0deg, rgba(11, 79, 108, 0.85) 0%, rgba(11, 79, 108, 0.45) 60%, rgba(11, 79, 108, 0) 100%); border-radius: 0 0 var(--r-media) var(--r-media); }
.bento-copy p { opacity: 0.9; }
.serious { display: block; margin: 0 0 28px; opacity: 0.6; text-transform: uppercase; letter-spacing: 0.1em; max-width: 60em; }

/* ---------- Beat 6 · Proof ---------- */
.proof { background: var(--paper); }
.proof-split { display: grid; grid-template-columns: 6fr 6fr; gap: clamp(32px, 4vw, 72px); align-items: start; margin-bottom: 56px; }
.stats { list-style: none; margin: 32px 0 0; padding: 0; display: flex; flex-direction: column; gap: 32px; }
.stats li { display: grid; gap: 4px; }
.stats .num { font-family: var(--font-display); font-weight: 700; font-size: clamp(48px, 5vw, 72px); line-height: 1; color: var(--marigold); }
.stats span { font-size: 16px; opacity: 0.85; max-width: 30em; }
.stats i { font-family: var(--font-mono); font-style: normal; font-size: 12px; opacity: 0.55; }
.sample { margin: 0; position: relative; }
.sample-doc { position: relative; transform: rotate(12deg); border-radius: var(--r-card); overflow: hidden; box-shadow: 0 24px 60px rgba(11, 79, 108, 0.18); max-width: 460px; margin: 0 auto; }
.sample-doc img { width: 100%; height: auto; }
.hotspot { position: absolute; left: var(--x); top: var(--y); width: 18px; height: 18px; border-radius: 50%; background: var(--marigold); border: 2px solid var(--paper); cursor: pointer; padding: 0; }
.hotspot::before { content: ""; position: absolute; inset: -14px; border-radius: 50%; }
.hotspot::after { content: ""; position: absolute; inset: -6px; border-radius: 50%; border: 1.5px solid var(--marigold); opacity: 0.6; animation: pulse 2s infinite; }
@keyframes pulse { 0% { transform: scale(0.8); opacity: 0.6; } 70% { transform: scale(1.5); opacity: 0; } 100% { opacity: 0; } }
.hs-label { position: absolute; left: 24px; top: 50%; transform: translateY(-50%); background: var(--paper); border: var(--border); border-radius: var(--r-pill); padding: 6px 12px; font-family: var(--font-body); font-size: 13px; font-weight: 500; white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity 200ms ease-out; }
.hotspot:hover .hs-label, .hotspot:focus-visible .hs-label, .hotspot[aria-expanded="true"] .hs-label { opacity: 1; }
.sample figcaption { margin-top: 20px; text-align: center; opacity: 0.6; text-transform: uppercase; font-size: 11px; letter-spacing: 0.1em; }
.case { background: var(--teal); color: var(--paper); border-radius: var(--r-card); padding: clamp(28px, 3vw, 48px); margin-bottom: 40px; max-width: 900px; }
.case .tag { display: inline-block; border: var(--border-paper); border-radius: var(--r-pill); padding: 4px 12px; text-transform: uppercase; letter-spacing: 0.14em; font-size: 11px; opacity: 0.8; margin-bottom: 16px; }
.case h3 { font-family: var(--font-display); font-weight: 600; font-size: 24px; margin: 0 0 12px; }
.case p { margin: 0; opacity: 0.9; line-height: 1.6; }
.trust { display: block; opacity: 0.55; margin: 0 0 28px; }

/* ---------- Beat 7 · FAQ ---------- */
.faq { background: var(--paper-2); }
.faq-grid { display: grid; grid-template-columns: 4fr 8fr; gap: clamp(32px, 4vw, 72px); align-items: start; }
.faq-head { position: sticky; top: 120px; }
.acc { display: flex; flex-direction: column; gap: 14px; }
.acc-item { background: var(--paper); border: var(--border); border-radius: var(--r-card); }
.acc-item summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 22px 24px; font-weight: 700; font-size: 20px; font-family: var(--font-body); }
.acc-item summary::-webkit-details-marker { display: none; }
.plus { position: relative; width: 18px; height: 18px; flex-shrink: 0; transition: transform 200ms ease-in-out; }
.plus::before, .plus::after { content: ""; position: absolute; background: var(--marigold); border-radius: 2px; }
.plus::before { left: 50%; top: 0; bottom: 0; width: 3px; transform: translateX(-50%); }
.plus::after { top: 50%; left: 0; right: 0; height: 3px; transform: translateY(-50%); }
.acc-item[open] .plus { transform: rotate(45deg); }
.acc-body { padding: 0 24px 22px; }
.acc-body p { margin: 0; opacity: 0.8; line-height: 1.6; max-width: 42em; }

/* ---------- Beat 8 · Agencies ---------- */
.agencies { background: var(--teal); color: var(--paper); overflow: hidden; }
.agencies .eyebrow { color: var(--paper); }
.ag-disc { position: absolute; right: -14vw; top: 50%; transform: translateY(-50%); width: 34vw; height: 34vw; border-radius: 50%; background: var(--marigold); opacity: 0.9; }
.agencies .container { position: relative; }
.agencies .h2 { max-width: 14em; }
.ag-cards { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin: 44px 0; padding: 0; max-width: 1000px; }
.ag-cards li { border: var(--border-paper); border-radius: var(--r-card); padding: 24px; }
.ag-cards .mono { text-transform: uppercase; letter-spacing: 0.14em; opacity: 0.7; }
.ag-cards p { margin: 10px 0 0; opacity: 0.9; font-size: 16px; }

/* ---------- Beat 9 · Fit ---------- */
.fit { min-height: 70vh; display: flex; align-items: center; overflow: hidden; background: var(--teal); color: var(--paper); }
.fit-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); opacity: 0.5; }
.fit-tint { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11, 79, 108, 0.9), rgba(11, 79, 108, 0.55)); }
.fit-inner { position: relative; z-index: 1; }
.fit .h2 { max-width: 14em; }
.fit-lines { list-style: none; margin: 28px 0 0; padding: 0; display: flex; flex-direction: column; gap: 10px; text-transform: uppercase; letter-spacing: 0.1em; opacity: 0.85; }

/* ---------- Beat 10 · Ask ---------- */
.ask { background: var(--marigold); color: var(--ink); }
.ask .eyebrow { opacity: 0.7; }
.ask-grid { display: grid; grid-template-columns: 5fr 6fr; gap: clamp(32px, 5vw, 96px); align-items: start; }
.alt-routes { margin-top: 28px; opacity: 0.85; }
.alt-routes a { margin-right: 14px; }
.form-card { background: var(--paper); border: var(--border); border-radius: var(--r-media); padding: clamp(24px, 3vw, 40px); }
.form-card label, .form-card legend { display: block; font-weight: 500; font-size: 15px; margin-bottom: 8px; }
.form-card .capture { max-width: none; }
.hp { position: absolute; left: -9999px; }
.f-step-2 { margin-top: 24px; }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.f-field { margin-bottom: 18px; min-width: 0; }
.f-field input, .f-field textarea { width: 100%; border: var(--border); border-radius: 14px; background: var(--paper); font-family: var(--font-body); font-size: 16px; padding: 13px 16px; color: var(--ink); }
.f-field textarea { resize: vertical; }
fieldset.f-field { border: none; padding: 0; margin-left: 0; margin-right: 0; }
.radios { display: flex; gap: 10px; flex-wrap: wrap; }
.radio { position: relative; }
.radio input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.radio span { display: inline-block; border: var(--border); border-radius: var(--r-pill); padding: 10px 18px; font-size: 15px; font-weight: 500; transition: background 150ms, color 150ms; }
.radio input:checked + span { background: var(--teal); color: var(--paper); border-color: var(--teal); }
.radio input:focus-visible + span { outline: 2px solid var(--teal); outline-offset: 3px; }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; margin: 6px 0 22px; cursor: pointer; }
.check input { width: 22px; height: 22px; accent-color: var(--ink); flex-shrink: 0; margin: 0; }
.f-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.f-actions .reassure { margin: 0; max-width: 22em; }
.f-error { color: var(--chilli); margin: 16px 0 0; }
.f-success h3 { font-family: var(--font-display); font-weight: 600; font-size: 28px; margin: 0 0 12px; }
.f-success p { opacity: 0.8; max-width: 34em; }

/* ---------- Beat 11 · Not ready ---------- */
.notready { background: var(--paper); }
.nr-inner { max-width: 720px; margin-left: 0; }
.nr-inner p { opacity: 0.8; max-width: 36em; }
.nr-form { margin-top: 24px; }

/* ---------- Footer ---------- */
.footer { background: var(--teal); color: rgba(255, 248, 236, 0.8); padding: 72px 0 40px; }
.foot-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; padding-bottom: 48px; }
.foot-grid a { color: inherit; }
.foot-grid .mono { line-height: 2; font-size: 12px; }
.foot-grid address { font-style: normal; }
.foot-grid > div > .mono:first-child, .foot-grid span:first-child { opacity: 0.55; text-transform: uppercase; letter-spacing: 0.12em; }
.footer .lang { margin-top: 10px; }
.foot-legal { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-top: 1px solid rgba(255, 248, 236, 0.2); padding-top: 24px; font-size: 11px; opacity: 0.6; }

/* ---------- Sticky mobile bar ---------- */
.sticky-bar { display: none; }

/* ---------- Reveal states (JS adds .reveal → .reveal-in) ---------- */
.reveal { opacity: 0; transform: translateY(24px); }
.reveal-in { opacity: 1; transform: none; transition: opacity 600ms var(--ease-emph), transform 600ms var(--ease-emph); }

/* ---------- Short desktop viewports: keep the pinned Beat 4 column inside the fold ---------- */
@media (min-width: 901px) and (max-height: 980px) {
  .how-left { padding-top: 48px; padding-bottom: 48px; }
  .how-left .h2 { font-size: clamp(30px, 3.4vw, 44px); margin-bottom: 14px; }
  .steps { margin: 18px 0; gap: 14px; }
  .step h3 { font-size: 22px; margin-bottom: 4px; }
  .step p { font-size: 14.5px; line-height: 1.45; }
  .pull { display: none; } /* deviation recorded in dev-handoff: closing line hidden at <=980px height so the CTA stays in the fold */
}

/* ============================================================
   Media queries
   ============================================================ */
@media (max-width: 1100px) {
  .nav-links, .nav-pill .lang { display: none; }
  .burger { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; background: transparent; border: none; padding: 14px 12px; min-width: 44px; min-height: 44px; cursor: pointer; }
  .burger span { display: block; width: 22px; height: 2.5px; background: var(--ink); border-radius: 2px; transition: transform 200ms; }
  .burger[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .burger[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .mobile-menu { display: flex; flex-direction: column; gap: 4px; position: fixed; top: 84px; left: 16px; right: 16px; z-index: 190; background: var(--paper); border: var(--border); border-radius: var(--r-card); padding: 20px; }
  .mobile-menu[hidden] { display: none; }
  .mobile-menu a { text-decoration: none; font-weight: 700; font-size: 20px; padding: 10px 4px; }
  .mobile-menu .lang { padding: 10px 4px 0; }
}

@media (max-width: 900px) {
  :root { --h1: clamp(36px, 9vw, 56px); --h2: clamp(30px, 7.5vw, 44px); }
  .nav { top: 12px; }
  .nav-pill { width: calc(100% - 24px); justify-content: space-between; }
  .nav-cta { display: none; }
  .hero-inner { padding-bottom: 120px; }
  .hero-ghost { font-size: 44vw; top: 8vh; }
  .hero-capture { flex-direction: column; align-items: stretch; border-radius: var(--r-card); gap: 6px; }
  .hero-capture input { padding: 12px 14px; }
  .ticker-list b { font-size: 22px; }
  .problem-grid { grid-template-columns: 1fr; }
  .how-wrap { grid-template-columns: 1fr; min-height: 0; }
  .how-left { padding: var(--sect-pad) var(--gutter); max-width: none; justify-self: stretch; }
  .how-right { min-height: 0; order: -1; padding: 24px var(--gutter) 0; }
  #voices-canvas { display: none; }
  .voices-video { display: block; position: relative; width: 100%; }
  .step { opacity: 1; }
  .bento { grid-template-columns: 1fr; grid-template-rows: auto; }
  .bento-media { grid-row: auto; min-height: 320px; }
  .proof-split, .faq-grid, .ask-grid { grid-template-columns: 1fr; }
  .faq-head { position: static; }
  .sample-doc { transform: rotate(4deg); max-width: 380px; }
  .ag-cards { grid-template-columns: 1fr; }
  .ag-disc { display: none; }
  .f-row { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .capture .btn { padding: 14px 18px; font-size: 15px; }
  .sticky-bar { display: flex; gap: 10px; position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 180; background: var(--paper); border: var(--border); border-radius: var(--r-pill); padding: 8px; transform: translateY(150%); transition: transform 300ms var(--ease-emph); }
  .sticky-bar.is-on { transform: none; }
  .sticky-bar .btn { flex: 1; padding: 14px 12px; font-size: 15px; }
  .wa-ic { width: 48px; border-radius: 50%; background: var(--teal); }
  body { padding-bottom: 0; }
}

@media (max-width: 900px) {
  .ticker-cap { display: none; }
}

@media (max-width: 480px) {
  :root { --h1: clamp(30px, 9.5vw, 40px); --h2: clamp(26px, 8.5vw, 34px); --body: 17px; }
  .pains .idx { font-size: 44px; }
  .acc-item summary { font-size: 17px; padding: 18px; }
  .capture { flex-direction: column; align-items: stretch; border-radius: var(--r-card); gap: 6px; }
  .capture .btn { width: 100%; }
  .hero-corner { display: none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  #voices-canvas { display: none; }
  .voices-video { display: block; position: relative; width: min(100%, 640px); margin: 48px auto 0; }
  .how-wrap { min-height: 0; }
  .how-right { min-height: 0; }

  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .hotspot::after { animation: none; }
  .card-video, .bento-media:hover .card-video { transition: none; transform: none; }
}

/* ---------- CJK display adjustments (zh pages) ---------- */
:lang(zh) .hero-h1, [lang="zh"] .hero-h1 { line-height: 1.12; letter-spacing: 0; }
[lang="zh"] .h2 { line-height: 1.15; letter-spacing: 0; }
[lang="zh"] .pull, [lang="zh"] .step h3, [lang="zh"] .case h3, [lang="zh"] .f-success h3 { line-height: 1.25; }