/* HAAO marketing site — shared styles. Static, no build step. */
:root {
  --bg: #ffffff;
  --fg: #030213;
  --muted: #6b6b7b;
  --muted-2: #8a8a99;
  --border: rgba(3, 2, 19, 0.10);
  --card: #ffffff;
  --soft: #f6f6f9;
  --soft-2: #ececf0;
  --accent: #4f46e5;
  --accent-soft: #eef0ff;
  --ok: #16a34a;
  --radius: 14px;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Nav ---------- */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.brand img { height: 26px; width: auto; display: block; }
.nav-links { display: flex; gap: 22px; margin-left: 8px; }
.nav-links a { color: var(--muted); font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--fg); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 16px; }
.gh { color: var(--muted); font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.lang { color: var(--muted); font-size: 14px; font-weight: 600; border: 1px solid var(--border); padding: 5px 11px; border-radius: 8px; }
.lang:hover { color: var(--fg); background: var(--soft); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer; transition: all .15s ease;
}
.btn-primary { background: var(--fg); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); opacity: .92; }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-ghost:hover { background: var(--soft); }
.btn-sm { padding: 8px 14px; font-size: 14px; }

/* ---------- Hero ---------- */
.hero { padding: 88px 0 56px; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--muted);
  background: var(--soft); border: 1px solid var(--border);
  padding: 6px 12px; border-radius: 999px; margin-bottom: 24px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }
h1.hero-title {
  font-size: clamp(38px, 6vw, 62px); line-height: 1.05; letter-spacing: -0.03em;
  margin: 0 auto 20px; max-width: 16ch; font-weight: 800;
}
h1.hero-title .grad {
  background: linear-gradient(120deg, var(--accent), #9333ea);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: clamp(17px, 2.2vw, 21px); color: var(--muted); max-width: 60ch; margin: 0 auto 32px; }

/* balance headline line breaks so phrases/words don't get orphaned */
h1.hero-title, .hero-sub, .section-head h2, .section-head p, .band h2, .band p { text-wrap: balance; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.backed { margin-top: 40px; color: var(--muted-2); font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.backed .stats { display: flex; gap: 28px; justify-content: center; margin-top: 12px; text-transform: none; letter-spacing: 0; }
.stat { text-align: center; }
.stat b { display: block; font-size: 26px; color: var(--fg); font-weight: 800; }
.stat span { font-size: 13px; color: var(--muted); }

/* ---------- Sections ---------- */
section { padding: 64px 0; }
.section-head { text-align: center; max-width: 860px; margin: 0 auto 44px; }
.section-head h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.025em; margin: 0 0 14px; font-weight: 800; }
.section-head p { color: var(--muted); font-size: 18px; margin: 0 auto; max-width: 60ch; }
.kicker { color: var(--accent); font-weight: 700; font-size: 14px; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 10px; }

/* demo embed */
.demo-frame {
  border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
  box-shadow: 0 24px 60px rgba(3,2,19,.12); background: var(--card);
  max-width: 960px; margin: 0 auto;
}
.demo-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; background: var(--soft); border-bottom: 1px solid var(--border);
}
.demo-bar .dots { display: flex; gap: 6px; }
.demo-bar .dots i { width: 11px; height: 11px; border-radius: 50%; background: #d6d6de; display: block; }
.demo-bar .dots i:nth-child(1) { background: #ff5f57; }
.demo-bar .dots i:nth-child(2) { background: #febc2e; }
.demo-bar .dots i:nth-child(3) { background: #28c840; }
.demo-url {
  flex: 1; text-align: center; font-family: var(--mono); font-size: 13px; color: var(--muted);
  background: var(--bg); border: 1px solid var(--border); border-radius: 7px; padding: 5px 10px;
  max-width: 320px; margin: 0 auto;
}
.demo-open { font-size: 13px; font-weight: 600; color: var(--accent); white-space: nowrap; }
.demo-iframe { display: block; width: 100%; height: 560px; border: 0; background: #fff; }
.demo-caption { text-align: center; color: var(--muted-2); font-size: 14px; margin: 16px 0 0; }
@media (max-width: 860px) {
  .demo-iframe { height: 420px; }
  .demo-open { display: none; }
}

/* feature grid */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: all .18s ease;
}
.card:hover { border-color: rgba(3,2,19,.2); box-shadow: 0 8px 30px rgba(3,2,19,.06); transform: translateY(-2px); }
.card .ic { width: 40px; height: 40px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; font-size: 20px; margin-bottom: 16px; }
.card h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* roles / flow */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 8px; }
.flow .node { background: var(--soft); border: 1px solid var(--border); border-radius: 12px; padding: 18px; text-align: center; }
.flow .node .role { font-size: 13px; color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.flow .node .who { font-weight: 700; margin: 6px 0 4px; }
.flow .node .desc { font-size: 13px; color: var(--muted); }

/* steps */
.steps { counter-reset: step; max-width: 760px; margin: 0 auto; display: grid; gap: 14px; }
.step { display: flex; gap: 16px; align-items: flex-start; background: var(--soft); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; }
.step .num { counter-increment: step; flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%; background: var(--fg); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; }
.step .num::before { content: counter(step); }
.step .body b { display: block; }
.step .body span { color: var(--muted); font-size: 15px; }

/* CTA band */
.band { background: var(--fg); color: #fff; border-radius: 22px; padding: 56px 32px; text-align: center; }
.band h2 { font-size: clamp(26px, 4vw, 38px); margin: 0 0 14px; letter-spacing: -0.02em; }
.band p { color: rgba(255,255,255,.7); font-size: 18px; margin: 0 0 26px; }
.band .btn-primary { background: #fff; color: var(--fg); }
.band .btn-ghost { color: #fff; border-color: rgba(255,255,255,.3); }

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.plan { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 30px; display: flex; flex-direction: column; }
.plan.featured { border-color: var(--fg); box-shadow: 0 16px 40px rgba(3,2,19,.10); position: relative; }
.plan.featured .tag { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--fg); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.plan h3 { margin: 0 0 6px; font-size: 21px; }
.plan .blurb { color: var(--muted); font-size: 14px; min-height: 40px; margin: 0 0 18px; }
.plan .price { font-size: 40px; font-weight: 800; letter-spacing: -0.03em; }
.plan .price small { font-size: 15px; color: var(--muted); font-weight: 500; }
.plan ul { list-style: none; padding: 0; margin: 22px 0; display: grid; gap: 11px; }
.plan li { font-size: 15px; color: var(--fg); display: flex; gap: 10px; align-items: flex-start; }
.plan li::before { content: "✓"; color: var(--ok); font-weight: 800; flex: 0 0 auto; }
.plan .btn { width: 100%; justify-content: center; margin-top: auto; }

/* ---------- Docs ---------- */
.docs-layout { display: grid; grid-template-columns: 220px 1fr; gap: 48px; align-items: start; }
.docs-side { position: sticky; top: 88px; }
.docs-side h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted-2); margin: 18px 0 8px; }
.docs-side a { display: block; padding: 6px 0; color: var(--muted); font-size: 15px; }
.docs-side a:hover { color: var(--fg); }
.docs-body { max-width: 720px; }
.docs-body h2 { font-size: 30px; letter-spacing: -0.02em; margin: 0 0 6px; scroll-margin-top: 88px; }
.docs-body h3 { font-size: 21px; margin: 36px 0 8px; scroll-margin-top: 88px; }
.docs-body p, .docs-body li { color: #2a2a3a; }
.docs-body pre { background: var(--fg); color: #e8e8f0; padding: 18px 20px; border-radius: 12px; overflow-x: auto; font-family: var(--mono); font-size: 14px; line-height: 1.55; }
.docs-body code { font-family: var(--mono); font-size: .9em; background: var(--soft-2); padding: 2px 6px; border-radius: 5px; }
.docs-body pre code { background: none; padding: 0; }
.tablewrap { overflow-x: auto; }
table.t { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 15px; }
table.t th, table.t td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); }
table.t th { font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.callout { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 20px 0; font-size: 15px; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--border); padding: 18px 0; }
.faq summary { font-weight: 600; font-size: 17px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 22px; }
.faq details[open] summary::after { content: "−"; }
.faq p { color: var(--muted); margin: 12px 0 0; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--border); padding: 48px 0 40px; margin-top: 40px; }
.foot-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 32px; }
.foot-col h5 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted-2); margin: 0 0 12px; }
.foot-col a { display: block; color: var(--muted); font-size: 14px; padding: 4px 0; }
.foot-col a:hover { color: var(--fg); }
.foot-bottom { margin-top: 36px; color: var(--muted-2); font-size: 13px; }

/* ---------- Theme toggle button ---------- */
.theme-toggle {
  background: transparent; border: 1px solid var(--border); border-radius: 8px;
  width: 34px; height: 32px; cursor: pointer; color: var(--muted);
  font-size: 15px; line-height: 1; display: inline-flex; align-items: center; justify-content: center;
  padding: 0; transition: all .15s ease;
}
.theme-toggle:hover { background: var(--soft); color: var(--fg); }
.theme-toggle::before { content: "\263E"; } /* moon: in light mode, click → dark */
[data-theme="dark"] .theme-toggle::before { content: "\2600"; } /* sun: in dark mode, click → light */

/* ---------- Logo swap (light/dark) ---------- */
.brand .logo-dark { display: none; }
[data-theme="dark"] .brand .logo-light { display: none; }
[data-theme="dark"] .brand .logo-dark { display: block; }

/* ---------- Dark theme ---------- */
[data-theme="dark"] {
  --bg: #0b0b12;
  --fg: #f4f4f8;
  --muted: #9a9aa8;
  --muted-2: #75757f;
  --border: rgba(255, 255, 255, 0.12);
  --card: #14141d;
  --soft: #14141d;
  --soft-2: #1e1e2a;
  --accent: #8b91ff;
  --accent-soft: #1b1b30;
  --ok: #34d399;
}
[data-theme="dark"] header.nav { background: rgba(11, 11, 18, 0.85); }
[data-theme="dark"] .btn-primary { color: #0b0b12; }
[data-theme="dark"] .step .num { color: #0b0b12; }
[data-theme="dark"] .band { background: #1b1b2b; }
[data-theme="dark"] .band .btn-primary { background: #fff; color: #0b0b12; }
[data-theme="dark"] .docs-body pre { background: #1e1e2a; }
[data-theme="dark"] .docs-body p, [data-theme="dark"] .docs-body li { color: #d2d2dc; }
[data-theme="dark"] .card:hover { box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4); border-color: rgba(255,255,255,.2); }
[data-theme="dark"] .demo-frame { box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5); }
[data-theme="dark"] .plan.featured { box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .grid-3, .price-grid, .flow { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-side { position: static; display: none; }
  section { padding: 48px 0; }
}