:root {
  --ink: #11120f;
  --paper: #f4f3ec;
  --paper-2: #eae9df;
  --acid: #dfff63;
  --coral: #ff6f59;
  --muted: #6a6c63;
  --line: rgba(17, 18, 15, 0.14);
  --shadow: 0 24px 70px rgba(17, 18, 15, 0.12);
  --radius: 26px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background-image: radial-gradient(rgba(17,18,15,.18) .55px, transparent .55px);
  background-size: 6px 6px;
  z-index: -1;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img { max-width: 100%; }

.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.nav-wrap { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(18px); background: rgba(244,243,236,.82); border-bottom: 1px solid rgba(17,18,15,.08); }
.nav { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; letter-spacing: -0.055em; font-size: 25px; }
.brand-dot { width: 12px; height: 12px; border-radius: 999px; background: var(--acid); box-shadow: 0 0 0 6px rgba(223,255,99,.23); }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; font-weight: 700; }
.nav-links a:not(.button):hover { opacity: .55; }
.menu-button { display: none; border: 0; background: transparent; padding: 10px; cursor: pointer; font-weight: 800; }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 20px; border-radius: 999px; border: 1px solid var(--ink);
  background: var(--ink); color: white; font-size: 14px; font-weight: 800;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(17,18,15,.18); }
.button.light { background: transparent; color: var(--ink); }
.button.acid { background: var(--acid); color: var(--ink); border-color: var(--acid); }
.button.arrow::after { content: "↗"; font-size: 16px; }

.eyebrow { display: inline-flex; align-items: center; gap: 9px; font-size: 12px; line-height: 1; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow::before { content:""; width: 28px; height: 2px; background: currentColor; }

.hero { padding: 90px 0 64px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.05fr) minmax(340px,.8fr); gap: 72px; align-items: center; }
.hero h1 { font-size: clamp(64px, 8.4vw, 126px); line-height: .86; letter-spacing: -.075em; margin: 24px 0 32px; font-weight: 950; max-width: 900px; }
.hero h1 .accent { position: relative; display: inline-block; }
.hero h1 .accent::after { content:""; position: absolute; left: 1%; right: -2%; bottom: 5%; height: .2em; background: var(--acid); z-index: -1; transform: rotate(-1deg); }
.hero-copy { font-size: clamp(18px, 2vw, 22px); line-height: 1.5; max-width: 620px; color: #42443e; }
.hero-actions { margin-top: 34px; display: flex; gap: 12px; flex-wrap: wrap; }

.operator-card { position: relative; border: 1px solid var(--line); border-radius: 36px; background: #fff; box-shadow: var(--shadow); padding: 18px; transform: rotate(1deg); }
.operator-card::before { content:""; position:absolute; width: 180px; height: 180px; border-radius: 50%; background: var(--coral); filter: blur(0); right: -90px; top: -70px; z-index:-1; }
.op-top { display:flex; align-items:center; justify-content:space-between; padding: 8px 8px 18px; }
.op-business { display:flex; align-items:center; gap:12px; font-weight:800; }
.avatar { width: 42px; height:42px; border-radius:50%; background: var(--ink); color: var(--acid); display:grid; place-items:center; font-weight:900; }
.live-pill { font-size:11px; font-weight:900; letter-spacing:.08em; text-transform:uppercase; display:flex; align-items:center; gap:7px; }
.live-pill i { display:block; width:8px; height:8px; border-radius:50%; background:#4bd567; box-shadow:0 0 0 4px rgba(75,213,103,.12); }
.chat-stage { background: #f1f2eb; border-radius: 24px; padding: 20px; display:flex; flex-direction:column; gap:12px; min-height: 430px; }
.bubble { max-width: 86%; padding: 14px 16px; border-radius: 18px; font-size: 14px; line-height:1.45; box-shadow:0 1px 0 rgba(17,18,15,.05); }
.bubble.customer { align-self:flex-end; background: var(--ink); color:white; border-bottom-right-radius:5px; }
.bubble.chop { align-self:flex-start; background:white; border-bottom-left-radius:5px; }
.bubble small { display:block; margin-top:8px; opacity:.52; font-size:10px; font-weight:700; text-transform:uppercase; letter-spacing:.06em; }
.handover { border: 1px dashed rgba(17,18,15,.28); border-radius: 15px; padding: 13px 14px; font-size: 12px; font-weight: 750; background: rgba(223,255,99,.4); }

.logo-strip { border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding: 24px 0; }
.logo-strip .container { display:flex; justify-content:space-between; gap:30px; flex-wrap:wrap; align-items:center; }
.logo-strip span { font-size:12px; font-weight:900; text-transform:uppercase; letter-spacing:.08em; color:var(--muted); }
.logo-strip b { font-size:16px; letter-spacing:-.03em; }

.section { padding: 112px 0; }
.section.compact { padding: 76px 0; }
.section.dark { background: var(--ink); color: var(--paper); }
.section.acid { background: var(--acid); }
.section-head { display:grid; grid-template-columns:.7fr 1.3fr; gap:80px; align-items:start; margin-bottom:56px; }
.section-head h2, .page-hero h1 { font-size: clamp(46px, 6vw, 78px); line-height:.95; letter-spacing:-.06em; margin:0; }
.section-head p { font-size:19px; line-height:1.55; color:var(--muted); margin: 4px 0 0; max-width:680px; }
.dark .section-head p { color: #b9bbb1; }

.cards { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.card { border:1px solid var(--line); border-radius:var(--radius); background:rgba(255,255,255,.68); padding:28px; min-height:290px; display:flex; flex-direction:column; justify-content:space-between; }
.card-number { font-size:12px; font-weight:900; letter-spacing:.1em; text-transform:uppercase; color:var(--muted); }
.card h3 { font-size:28px; line-height:1.05; letter-spacing:-.04em; margin: 44px 0 12px; }
.card p { color:var(--muted); line-height:1.55; margin:0; }
.dark .card { background:#1a1b18; border-color:rgba(255,255,255,.12); }
.dark .card p,.dark .card-number { color:#a7aa9f; }

.split { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.big-copy { font-size:clamp(36px,5vw,68px); line-height:1; letter-spacing:-.055em; font-weight:900; }
.rule-stack { border-top:1px solid var(--line); }
.rule { padding:20px 0; border-bottom:1px solid var(--line); display:grid; grid-template-columns:120px 1fr; gap:16px; }
.rule b { font-size:12px; text-transform:uppercase; letter-spacing:.08em; }
.rule span { line-height:1.45; color:var(--muted); }

.flow { display:grid; grid-template-columns:repeat(4,1fr); gap:10px; }
.flow-step { padding:24px; border-radius:22px; background:var(--paper-2); min-height:200px; position:relative; }
.flow-step:not(:last-child)::after { content:"→"; position:absolute; right:-11px; top:50%; z-index:2; width:22px; height:22px; display:grid; place-items:center; border-radius:50%; background:var(--ink); color:white; font-size:11px; }
.flow-step strong { display:block; font-size:13px; letter-spacing:.08em; text-transform:uppercase; margin-bottom:42px; }
.flow-step h3 { margin:0 0 10px; font-size:22px; letter-spacing:-.035em; }
.flow-step p { margin:0; color:var(--muted); font-size:14px; line-height:1.5; }

.quote-panel { border-radius:36px; padding:64px; background:var(--coral); display:grid; grid-template-columns:1.3fr .7fr; gap:60px; align-items:end; }
.quote-panel h2 { font-size:clamp(48px,6vw,82px); letter-spacing:-.06em; line-height:.93; margin:0; }
.quote-panel p { line-height:1.5; font-weight:650; }

.page-hero { padding:96px 0 62px; }
.page-hero .lead { font-size:20px; line-height:1.55; color:var(--muted); max-width:720px; margin:28px 0 0; }

.timeline { max-width:900px; margin-left:auto; }
.timeline-item { display:grid; grid-template-columns:88px 1fr; gap:24px; padding:34px 0; border-top:1px solid var(--line); }
.timeline-item:last-child { border-bottom:1px solid var(--line); }
.timeline-num { font-size:12px; font-weight:900; letter-spacing:.1em; text-transform:uppercase; }
.timeline-item h3 { font-size:30px; margin:0 0 12px; letter-spacing:-.04em; }
.timeline-item p { margin:0; color:var(--muted); line-height:1.55; }

.demo-shell { display:grid; grid-template-columns:320px 1fr; min-height:690px; border:1px solid var(--line); border-radius:32px; overflow:hidden; background:white; box-shadow:var(--shadow); }
.demo-side { padding:26px; background:var(--ink); color:white; display:flex; flex-direction:column; }
.demo-side .brand { color:white; }
.demo-business { margin-top:70px; }
.demo-business .avatar { background:var(--acid); color:var(--ink); width:54px; height:54px; }
.demo-business h2 { margin:16px 0 8px; font-size:24px; letter-spacing:-.04em; }
.demo-business p { margin:0; color:#aeb1a5; font-size:13px; line-height:1.5; }
.demo-status { margin-top:auto; padding-top:20px; border-top:1px solid rgba(255,255,255,.13); color:#aeb1a5; font-size:12px; line-height:1.5; }
.demo-main { display:flex; flex-direction:column; min-width:0; }
.demo-top { min-height:74px; border-bottom:1px solid var(--line); display:flex; align-items:center; justify-content:space-between; padding:0 28px; }
.demo-top b { font-size:14px; }
.demo-top span { font-size:11px; color:var(--muted); text-transform:uppercase; letter-spacing:.08em; font-weight:800; }
.demo-chat { padding:28px; background:#f3f3ed; flex:1; overflow:auto; display:flex; flex-direction:column; gap:13px; }
.demo-compose { padding:18px 20px 20px; border-top:1px solid var(--line); background:white; }
.chips { display:flex; gap:8px; flex-wrap:wrap; margin-bottom:12px; }
.chip { border:1px solid var(--line); background:white; border-radius:999px; padding:9px 12px; cursor:pointer; font-size:12px; font-weight:700; }
.chip:hover { border-color:var(--ink); }
.compose-row { display:flex; gap:10px; }
.compose-row input { flex:1; min-width:0; border:1px solid var(--line); border-radius:999px; min-height:48px; padding:0 18px; outline:none; background:#fafaf7; }
.compose-row input:focus { border-color:var(--ink); }
.send { border:0; border-radius:50%; width:48px; height:48px; background:var(--ink); color:white; cursor:pointer; font-size:17px; }

.start-shell { display:grid; grid-template-columns:.8fr 1.2fr; gap:40px; align-items:start; }
.start-copy { position:sticky; top:110px; }
.start-copy h1 { font-size:clamp(48px,6vw,76px); line-height:.96; letter-spacing:-.06em; margin:20px 0; }
.start-copy p { color:var(--muted); line-height:1.55; font-size:18px; }
.form-frame { min-height:720px; border:1px solid var(--line); background:white; border-radius:28px; overflow:hidden; box-shadow:var(--shadow); }
.form-frame iframe { width:100%; min-height:720px; border:0; display:block; }
.form-placeholder { min-height:720px; display:grid; place-items:center; padding:34px; text-align:center; }
.form-placeholder-inner { max-width:520px; }
.form-placeholder .mark { width:70px; height:70px; border-radius:20px; background:var(--acid); display:grid; place-items:center; font-weight:950; font-size:24px; margin:0 auto 22px; }
.form-placeholder h2 { font-size:32px; letter-spacing:-.04em; margin:0 0 12px; }
.form-placeholder p { color:var(--muted); line-height:1.55; }
.dev-note { margin-top:18px; padding:14px; border-radius:14px; background:#f3f3ed; font:12px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; text-align:left; overflow-wrap:anywhere; }

.footer { padding:60px 0 34px; background:var(--ink); color:white; }
.footer-top { display:grid; grid-template-columns:1fr auto; gap:30px; align-items:end; padding-bottom:54px; border-bottom:1px solid rgba(255,255,255,.13); }
.footer-title { font-size:clamp(52px,8vw,112px); font-weight:950; letter-spacing:-.075em; line-height:.85; }
.footer-links { display:flex; gap:18px; flex-wrap:wrap; }
.footer-bottom { display:flex; justify-content:space-between; gap:20px; padding-top:24px; color:#999d91; font-size:12px; }

.reveal { opacity:0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.visible { opacity:1; transform:none; }

@media (max-width: 900px) {
  .hero { padding-top:60px; }
  .hero-grid,.section-head,.split,.quote-panel,.start-shell { grid-template-columns:1fr; gap:42px; }
  .hero-grid { gap:60px; }
  .cards { grid-template-columns:1fr; }
  .flow { grid-template-columns:1fr 1fr; }
  .flow-step:not(:last-child)::after { display:none; }
  .demo-shell { grid-template-columns:1fr; }
  .demo-side { min-height:auto; }
  .demo-business { margin-top:36px; }
  .demo-status { margin-top:34px; }
  .start-copy { position:static; }
}

@media (max-width: 680px) {
  .container { width:min(calc(100% - 28px), var(--max)); }
  .nav { min-height:68px; }
  .menu-button { display:block; }
  .nav-links { display:none; position:absolute; left:14px; right:14px; top:72px; padding:18px; border-radius:20px; background:var(--paper); border:1px solid var(--line); box-shadow:var(--shadow); flex-direction:column; align-items:stretch; gap:4px; }
  .nav-links.open { display:flex; }
  .nav-links a { padding:12px; }
  .hero h1 { font-size:64px; }
  .hero-actions .button { width:100%; }
  .section { padding:84px 0; }
  .section-head { margin-bottom:38px; }
  .flow { grid-template-columns:1fr; }
  .quote-panel { padding:36px 26px; border-radius:28px; }
  .rule { grid-template-columns:1fr; gap:7px; }
  .timeline-item { grid-template-columns:54px 1fr; }
  .demo-shell { border-radius:22px; }
  .demo-side { padding:20px; }
  .demo-top { padding:0 18px; }
  .demo-chat { padding:18px; min-height:440px; }
  .footer-top,.footer-bottom { grid-template-columns:1fr; display:grid; }
  .footer-title { font-size:68px; }
  .operator-card { transform:none; }
}