/*
 * AtlasLaunch AI website design system (OPS-15), built on AtlasAR's (same structure, spacing, type, components)
 * in the AtlasLaunch indigo (#4f46e5, the SDK widget's default accent). Rules in SITE-DESIGN-SYSTEM.md.
 *
 *   Tokens   --la-*  (colour, type, space, radius, shadow, motion). Legacy names (--ink, --line,
 *            --accent …) stay as aliases: docs.css, search.css and blog.css read them.
 *   Layout   .wrap .section .section-head .grid-2/3/4 .split
 *   Parts    .btn .chip .badge .card .stage .viewer-frame .qr-card .tile .model-card .filters
 *            .search-field .stat .steps .logo-row .cta .feedback .code .tabs .table
 */
:root {
  /* colour: neutrals */
  --la-canvas: #f7f7fb; --la-surface: #ffffff; --la-surface-2: #f1f2f8; --la-surface-3: #e8e9f3;
  --la-line: #e3e4ef; --la-line-strong: #cbcde0;
  --la-ink: #12112b; --la-ink-2: #33324f; --la-muted: #5b5a78; --la-subtle: #8584a3;
  /* colour: brand + signals */
  --la-brand: #4f46e5; --la-brand-strong: #4338ca; --la-brand-ink: #ffffff; --la-brand-ground: #eef0fe; --la-brand-soft: #c7d2fe;
  --la-glow: #a5b4fc; --la-violet: #c4b5fd; --la-sky: #67e8f9;
  --la-pro: #b45309; --la-pro-ground: #fdf0dc;
  --la-ok: #0e7a43; --la-danger: #b42318;
  /* colour: the dark stage */
  --la-night: #07061a; --la-night-2: #0e0c2b; --la-night-3: #17143d; --la-night-line: rgba(255, 255, 255, .09);
  --la-night-ink: #eeeefe; --la-night-muted: #a9a8d6;
  /* type */
  --la-font: "Inter", "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif;
  --la-font-display: "Inter Tight", "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  --la-mono: ui-monospace, SFMono-Regular, "Cascadia Code", Menlo, Consolas, monospace;
  --la-t-xs: 12px; --la-t-sm: 14px; --la-t-md: 16px; --la-t-lg: 18px; --la-t-xl: 21px;
  --la-t-h3: 20px; --la-t-h2: clamp(28px, 3.6vw, 42px); --la-t-h1: clamp(38px, 6vw, 68px);
  /* space (4-point) */
  --la-s1: 4px; --la-s2: 8px; --la-s3: 12px; --la-s4: 16px; --la-s5: 20px; --la-s6: 24px; --la-s8: 32px; --la-s10: 40px; --la-s12: 48px; --la-s16: 64px; --la-s20: 80px; --la-s24: 96px;
  /* shape + depth + motion */
  --la-r-sm: 8px; --la-r-md: 12px; --la-r-lg: 18px; --la-r-xl: 26px; --la-r-pill: 999px;
  --la-shadow-sm: 0 1px 2px rgba(18, 17, 43, .06), 0 1px 1px rgba(18, 17, 43, .04);
  --la-shadow-md: 0 10px 30px -12px rgba(18, 17, 43, .18), 0 2px 6px rgba(18, 17, 43, .05);
  --la-shadow-lg: 0 40px 80px -30px rgba(7, 6, 26, .45), 0 10px 24px -12px rgba(7, 6, 26, .25);
  --la-ease: cubic-bezier(.2, .7, .2, 1); --la-fast: .15s; --la-slow: .4s;
  --la-wrap: 1180px;

  /* legacy aliases (pages written before AR-172, docs.css, search.css) */
  --bg: var(--la-canvas); --card: var(--la-surface); --ink: var(--la-ink); --muted: var(--la-muted); --line: var(--la-line);
  --accent: var(--la-brand); --accent-ink: var(--la-brand-ink); --accent-soft: var(--la-brand-ground); --ok: var(--la-ok);
  --dark: var(--la-night-2); --dark-ink: var(--la-night-ink); --radius: var(--la-r-lg);
  --display: var(--la-font-display); --text: var(--la-font);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --la-canvas: #0b0b18; --la-surface: #13132a; --la-surface-2: #191935; --la-surface-3: #20203f;
    --la-line: #27274a; --la-line-strong: #3a3a66;
    --la-ink: #eeeefa; --la-ink-2: #d0d0ec; --la-muted: #a6a6c8; --la-subtle: #7d7da3;
    --la-brand: #a5b4fc; --la-brand-strong: #c7d2fe; --la-brand-ink: #0b0a2a; --la-brand-ground: #1e1c4a; --la-brand-soft: #312e81;
    --la-pro: #f6b766; --la-pro-ground: #3a2a12; --la-ok: #5ad69a; --la-danger: #ff8a7a;
    --la-shadow-sm: 0 1px 2px rgba(0, 0, 0, .4); --la-shadow-md: 0 12px 30px -12px rgba(0, 0, 0, .6);
    color-scheme: dark;
  }
}

/* ---------------------------------------------------------------- base */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--la-canvas); color: var(--la-ink); font: var(--la-t-md)/1.6 var(--la-font); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
h1, h2, h3, h4 { font-family: var(--la-font-display); color: var(--la-ink); letter-spacing: -.02em; text-wrap: balance; }
h1 { font-size: var(--la-t-h1); line-height: 1.02; letter-spacing: -.035em; margin: 0 0 var(--la-s5); font-weight: 750; }
h2 { line-height: 1.12; }
p { text-wrap: pretty; }
a { color: var(--la-brand); text-underline-offset: 3px; }
img, svg, video { max-width: 100%; }
a[href], button, [role="button"], [role="tab"], summary, select, label[for],
input[type="checkbox"], input[type="radio"], input[type="file"] { cursor: pointer; }
button:disabled, [aria-disabled="true"], input:disabled, select:disabled { cursor: not-allowed; }
:focus-visible { outline: 3px solid var(--la-brand); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--la-brand-ground); }
.wrap { max-width: var(--la-wrap); margin: 0 auto; padding: 0 var(--la-s4); }
@media (min-width: 720px) { .wrap { padding: 0 var(--la-s6); } }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.muted { color: var(--la-muted); }
code.inline, .doc code.inline { font: .9em var(--la-mono); background: var(--la-surface-2); color: var(--la-ink); padding: 1px 6px; border-radius: 6px; border: 1px solid var(--la-line); }

/* ---------------------------------------------------------------- header (markup from the core layout) */
header.top { position: sticky; top: 0; z-index: 50; padding: 12px 0; background: color-mix(in srgb, var(--la-canvas) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid transparent; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: var(--la-s4); }
@supports not (background: color-mix(in srgb, red 50%, blue)) { header.top { background: var(--la-canvas); } }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--la-font-display); font-size: 18px; font-weight: 750; letter-spacing: -.02em; color: var(--la-ink); text-decoration: none; white-space: nowrap; }
.brand::before { content: ""; width: 30px; height: 30px; border-radius: 9px; flex: none; box-shadow: 0 6px 14px -6px rgba(79, 70, 229, .7); }
/* The chat-bubble launch mark (server/lib/brand.js, npm run brand). */
.brand::before { background: url("/assets/brand/logo-mark.svg") center / contain no-repeat; }
nav.links { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
nav.links a { color: var(--la-ink-2); text-decoration: none; font-size: 15px; font-weight: 500; padding: 7px 11px; border-radius: var(--la-r-sm); transition: background var(--la-fast), color var(--la-fast); }
nav.links a:hover { background: var(--la-surface-2); color: var(--la-ink); }
nav.links a[aria-current="page"] { color: var(--la-ink); font-weight: 650; background: var(--la-surface-2); }
nav.links a.signin { margin-left: 6px; color: var(--la-brand-ink); background: var(--la-ink); font-weight: 650; padding: 8px 14px; border-radius: var(--la-r-md); }
nav.links a.signin:hover { background: var(--la-brand); }
nav.links .search-open { margin: 0 2px 0 6px; }
@media (max-width: 1000px) { nav.links .opt { display: none; } }
@media (max-width: 640px) {
  nav.links { gap: 0; }
  nav.links a { font-size: 14px; padding: 6px 8px; }
  nav.links a.hide-sm { display: none; }
  nav.links a.signin { padding: 7px 10px; }
  .brand { font-size: 16px; }
}
@media (max-width: 420px) { .brand { font-size: 0; gap: 0; } }

/* ---------------------------------------------------------------- buttons, chips, badges */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 20px; border-radius: var(--la-r-md);
  font: 650 15.5px/1 var(--la-font); letter-spacing: -.005em; text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: transform var(--la-fast) var(--la-ease), background var(--la-fast), box-shadow var(--la-fast), border-color var(--la-fast); white-space: nowrap; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--la-brand); color: var(--la-brand-ink); box-shadow: 0 8px 20px -10px rgba(79, 70, 229, .8), inset 0 1px 0 rgba(255, 255, 255, .15); }
.btn.primary:hover { background: var(--la-brand-strong); }
.btn.secondary, .btn.ghost { background: var(--la-surface); color: var(--la-ink); border-color: var(--la-line-strong); }
.btn.secondary:hover, .btn.ghost:hover { border-color: var(--la-ink); }
.btn.quiet { background: transparent; color: var(--la-ink); padding: 0 8px; }
.btn.quiet:hover { color: var(--la-brand); }
.btn.sm { min-height: 36px; padding: 0 14px; font-size: 14px; border-radius: var(--la-r-sm); }
.btn.lg { min-height: 54px; padding: 0 26px; font-size: 16.5px; }
.btn .arrow { transition: transform var(--la-fast) var(--la-ease); }
.btn:hover .arrow { transform: translateX(3px); }
.on-dark .btn.primary, .btn.glow { background: var(--la-glow); color: #0b0a2a; box-shadow: 0 10px 30px -10px rgba(165, 180, 252, .7); }
.on-dark .btn.primary:hover, .btn.glow:hover { background: #c7d2fe; }
.on-dark .btn.secondary, .on-dark .btn.ghost { background: rgba(255, 255, 255, .06); color: var(--la-night-ink); border-color: rgba(255, 255, 255, .2); }
.on-dark .btn.secondary:hover, .on-dark .btn.ghost:hover { border-color: rgba(255, 255, 255, .55); }
.actions { display: flex; flex-wrap: wrap; gap: var(--la-s3); align-items: center; }

.chip { display: inline-flex; align-items: center; gap: 6px; min-height: 34px; padding: 0 13px; border-radius: var(--la-r-pill); border: 1px solid var(--la-line-strong);
  background: var(--la-surface); color: var(--la-ink-2); font: 550 14px/1 var(--la-font); cursor: pointer; transition: all var(--la-fast); }
.chip:hover { border-color: var(--la-ink); color: var(--la-ink); }
.chip[aria-pressed="true"], .chip[aria-selected="true"], .chip.is-on { background: var(--la-ink); color: var(--la-canvas); border-color: var(--la-ink); }
.chip .n { font-size: 12px; opacity: .65; }
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: var(--la-r-pill); font: 650 12px/1.3 var(--la-font); letter-spacing: .01em;
  background: var(--la-surface-2); color: var(--la-ink-2); border: 1px solid var(--la-line); white-space: nowrap; }
.badge.brand { background: var(--la-brand-ground); color: var(--la-brand); border-color: transparent; }
.badge.pro { background: var(--la-pro-ground); color: var(--la-pro); border-color: transparent; }
.badge.free { background: var(--la-brand-ground); color: var(--la-brand); border-color: transparent; }
.on-dark .badge { background: rgba(255, 255, 255, .07); color: var(--la-night-ink); border-color: var(--la-night-line); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--la-glow); box-shadow: 0 0 0 4px rgba(165, 180, 252, .18); display: inline-block; }

/* ---------------------------------------------------------------- sections */
.section { padding: var(--la-s20) 0; }
.section.tight { padding: var(--la-s12) 0; }
.section.alt { background: var(--la-surface); border-block: 1px solid var(--la-line); }
.section-head { max-width: 720px; margin: 0 0 var(--la-s10); }
.section-head.center { margin-inline: auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font: 700 13px/1 var(--la-font); letter-spacing: .08em; text-transform: uppercase; color: var(--la-brand); margin: 0 0 var(--la-s4); }
.section-head h2, h2.title { font-size: var(--la-t-h2); margin: 0 0 var(--la-s4); }
.section-head p, .sub { color: var(--la-muted); font-size: var(--la-t-lg); margin: 0; max-width: 62ch; }
.lede { font-size: clamp(17px, 2vw, 20px); line-height: 1.55; color: var(--la-muted); margin: 0 0 var(--la-s8); max-width: 58ch; }
.grid-2, .grid-3, .grid-4 { display: grid; gap: var(--la-s5); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 980px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: var(--la-s12); align-items: center; }
.split.flip > :first-child { order: 2; }
@media (max-width: 900px) { .split { grid-template-columns: minmax(0, 1fr); gap: var(--la-s8); } .split.flip > :first-child { order: 0; } }

/* ---------------------------------------------------------------- cards */
.card { background: var(--la-surface); border: 1px solid var(--la-line); border-radius: var(--la-r-lg); box-shadow: var(--la-shadow-sm); }
.card.pad, .feature, .step { padding: var(--la-s6); }
.card.lift { transition: transform var(--la-slow) var(--la-ease), box-shadow var(--la-slow) var(--la-ease), border-color var(--la-fast); }
.card.lift:hover { transform: translateY(-3px); box-shadow: var(--la-shadow-md); border-color: var(--la-line-strong); }
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--la-s5); }
@media (max-width: 900px) { .features { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .features { grid-template-columns: 1fr; } }
.icon { width: 42px; height: 42px; border-radius: var(--la-r-md); display: grid; place-items: center; background: var(--la-brand-ground); color: var(--la-brand); flex: none; }
.icon svg { width: 21px; height: 21px; }
.feature h3, .step h3, .card h3 { font-size: 18px; line-height: 1.3; margin: var(--la-s4) 0 6px; letter-spacing: -.015em; }
.feature p, .step p, .card p { margin: 0; color: var(--la-muted); font-size: 15px; }
.feature .tagline { display: inline-flex; margin-top: var(--la-s4); }
.feature .tagline:not(.badge) { font: 650 12.5px/1.3 var(--la-font); color: var(--la-brand); background: var(--la-brand-ground); border-radius: var(--la-r-pill); padding: 3px 10px; }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--la-s5); counter-reset: s; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.step { counter-increment: s; position: relative; }
.step::before { content: "0" counter(s); font: 750 13px/1 var(--la-mono); color: var(--la-brand); background: var(--la-brand-ground); padding: 7px 9px; border-radius: var(--la-r-sm); display: inline-block; }

/* ---------------------------------------------------------------- the dark stage (hero, CTA) */
.stage { position: relative; isolation: isolate; color: var(--la-night-ink); background: var(--la-night); overflow: hidden; }
.stage::before { content: ""; position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(900px 520px at 72% 38%, rgba(165, 180, 252, .16), transparent 60%),
    radial-gradient(700px 420px at 12% 0%, rgba(196, 181, 253, .14), transparent 60%),
    radial-gradient(600px 400px at 95% 100%, rgba(103, 232, 249, .10), transparent 60%),
    linear-gradient(180deg, var(--la-night-2), var(--la-night)); }
/* A faint perspective grid under the hero, fading out. */
.stage::after { content: ""; position: absolute; left: -20%; right: -20%; bottom: -10%; height: 55%; z-index: -1; transform: perspective(600px) rotateX(62deg); transform-origin: bottom;
  background-image: linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: 56px 56px; -webkit-mask-image: linear-gradient(to top, #000 10%, transparent 85%); mask-image: linear-gradient(to top, #000 10%, transparent 85%); }
.stage h1, .stage h2, .stage h3 { color: #fff; }
.stage .lede, .stage p { color: var(--la-night-muted); }
.stage .eyebrow { color: var(--la-glow); }
.stage a:not(.btn) { color: var(--la-glow); }
.hero { padding: var(--la-s16) 0 var(--la-s20); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); gap: var(--la-s10); align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: minmax(0, 1fr); } }
.hero h1 .glow-text { background: linear-gradient(100deg, #c7d2fe 0%, #a5b4fc 35%, #67e8f9 75%, #c4b5fd 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .note { margin: var(--la-s4) 0 0; font-size: 14px; color: var(--la-night-muted); display: flex; gap: 18px; flex-wrap: wrap; }
.hero .note span::before { content: "✓"; color: var(--la-glow); font-weight: 800; margin-right: 6px; }
.pill-link { display: inline-flex; align-items: center; gap: 10px; padding: 5px 14px 5px 6px; border-radius: var(--la-r-pill); border: 1px solid var(--la-night-line);
  background: rgba(255, 255, 255, .05); color: var(--la-night-ink) !important; text-decoration: none; font-size: 14px; font-weight: 550; margin-bottom: var(--la-s6); }
.pill-link b { background: var(--la-glow); color: #0b0a2a; border-radius: var(--la-r-pill); padding: 3px 9px; font-size: 12px; }
.pill-link:hover { border-color: rgba(255, 255, 255, .3); }

/* Proof row */
.proof-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--la-line); border: 1px solid var(--la-line); border-radius: var(--la-r-lg); overflow: hidden; }
@media (max-width: 760px) { .proof-row { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.stat { background: var(--la-surface); padding: var(--la-s6); }
.stat strong { display: block; font: 750 clamp(26px, 3vw, 34px)/1.1 var(--la-font-display); letter-spacing: -.03em; color: var(--la-ink); }
.stat span { font-size: 14px; color: var(--la-muted); }
.platforms { display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: center; color: var(--la-subtle); font: 650 15px/1 var(--la-font-display); letter-spacing: -.01em; }
.platforms span { display: inline-flex; align-items: center; gap: 8px; }
.platforms svg { width: 18px; height: 18px; opacity: .8; }

/* ---------------------------------------------------------------- example tiles + showcase */
.tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--la-s5); }
@media (max-width: 980px) { .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .tiles { grid-template-columns: minmax(0, 1fr); } }
.tile { display: flex; flex-direction: column; overflow: hidden; color: inherit; text-decoration: none; }
.tile .tile-view { aspect-ratio: 4 / 3; position: relative; background: radial-gradient(110% 90% at 50% 20%, #fff, #eceef8); border-bottom: 1px solid var(--la-line); }
@media (prefers-color-scheme: dark) { .tile .tile-view, .viewer-frame:not(.dark) { background: radial-gradient(110% 90% at 50% 20%, #24224a, #13132a); } }
.tile .tile-view img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.tile .tile-body { padding: var(--la-s5); display: grid; gap: 6px; }
.tile h3 { margin: 0; font-size: 17px; }
.tile p { margin: 0; color: var(--la-muted); font-size: 14.5px; }
.tile .tile-meta { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }

.showcase { scroll-margin-top: 90px; padding: var(--la-s12) 0; border-top: 1px solid var(--la-line); }
.showcase:first-of-type { border-top: 0; }
.showcase .split { align-items: start; }
.showcase h2 { font-size: clamp(24px, 2.8vw, 32px); margin: 0 0 var(--la-s3); }
.showcase .use { margin: var(--la-s4) 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.showcase .use li { padding-left: 26px; position: relative; color: var(--la-ink-2); font-size: 15.5px; }
.showcase .use li::before { content: ""; position: absolute; left: 0; top: 5px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--la-brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E") center / 10px no-repeat; }
.showcase .code { margin-top: var(--la-s5); }
.controls { display: flex; flex-wrap: wrap; gap: 8px; margin-top: var(--la-s3); align-items: center; }
.controls .label { font-size: 13px; font-weight: 650; color: var(--la-muted); margin-right: 4px; }
.swatch { width: 34px; height: 34px; border-radius: 50%; border: 2px solid var(--la-surface); box-shadow: 0 0 0 1px var(--la-line-strong); cursor: pointer; padding: 0; }
.swatch[aria-pressed="true"] { box-shadow: 0 0 0 2px var(--la-ink); }
.event-log { margin-top: var(--la-s3); font: 12.5px/1.5 var(--la-mono); color: var(--la-muted); min-height: 1.5em; }
.toc-strip { position: sticky; top: 62px; z-index: 20; background: color-mix(in srgb, var(--la-canvas) 88%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--la-line); }
.toc-strip .wrap { display: flex; gap: 6px; overflow-x: auto; padding-block: 10px; scrollbar-width: none; }
.toc-strip a { flex: none; text-decoration: none; }

/* ---------------------------------------------------------------- feedback (every page) */
.feedback { margin: var(--la-s16) 0 0; padding: var(--la-s6); display: grid; gap: var(--la-s4); }
.feedback .row { display: flex; flex-wrap: wrap; gap: var(--la-s3); align-items: center; justify-content: space-between; }
.feedback h2 { font-size: 18px; margin: 0; letter-spacing: -.01em; }
.feedback p { margin: 0; color: var(--la-muted); font-size: 14.5px; }
.feedback .chips { display: flex; flex-wrap: wrap; gap: 8px; }
.feedback textarea { width: 100%; min-height: 84px; resize: vertical; padding: 12px 14px; font: 15px/1.5 var(--la-font); color: var(--la-ink); background: var(--la-surface); border: 1px solid var(--la-line-strong); border-radius: var(--la-r-md); }
.feedback .thanks { color: var(--la-ok); font-weight: 600; font-size: 14.5px; }
.feedback [hidden] { display: none !important; }

/* ---------------------------------------------------------------- CTA band */
.cta { border-radius: var(--la-r-xl); padding: clamp(28px, 5vw, 56px); display: grid; grid-template-columns: minmax(0, 1.4fr) auto; gap: var(--la-s8); align-items: center; }
@media (max-width: 800px) { .cta { grid-template-columns: minmax(0, 1fr); } }
.cta h2 { font-size: clamp(26px, 3.4vw, 38px); margin: 0 0 var(--la-s3); }
.cta p { margin: 0; font-size: 17px; }
.band { margin-top: var(--la-s12); padding: var(--la-s8); display: grid; grid-template-columns: minmax(0, 1.5fr) auto; gap: var(--la-s6); align-items: center; }
@media (max-width: 760px) { .band { grid-template-columns: 1fr; } }
.band h2 { font-size: 24px; margin: 0 0 6px; }
.band p { margin: 0; color: var(--la-muted); }
.band.dark { background: var(--la-night-2); color: var(--la-night-ink); border-color: var(--la-night-line); }
.band.dark h2 { color: #fff; }
.band.dark p { color: var(--la-night-muted); }
.band.dark .btn.primary { background: var(--la-glow); color: #0b0a2a; }
.dev { padding: var(--la-s6); display: grid; grid-template-columns: minmax(0, 1.5fr) auto; gap: var(--la-s6); align-items: center; }
@media (max-width: 760px) { .dev { grid-template-columns: 1fr; } }
.dev h2 { font-size: 22px; margin: 0 0 6px; }
.dev p { margin: 0; color: var(--la-muted); }

/* ---------------------------------------------------------------- pricing */
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--la-s5); align-items: stretch; }
@media (max-width: 760px) { .plans { grid-template-columns: 1fr; } }
.plans.four { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.plan { padding: var(--la-s8) var(--la-s6); display: flex; flex-direction: column; }
.plan.pro { border-color: var(--la-brand); box-shadow: 0 0 0 1px var(--la-brand) inset, var(--la-shadow-md); }
.plan h2, .plan h3 { font-size: 20px; margin: 0; }
.price { margin: 10px 0 4px; color: var(--la-muted); }
.price strong { font: 750 38px/1.1 var(--la-font-display); color: var(--la-ink); letter-spacing: -.03em; }
.plan .fine { font-size: 13px; color: var(--la-muted); margin: 0 0 var(--la-s5); }
.plan ul { list-style: none; margin: 0 0 var(--la-s6); padding: 0; display: grid; gap: 10px; flex: 1; align-content: start; }
.plan li { position: relative; padding-left: 26px; font-size: 15px; }
.plan li::before { content: ""; position: absolute; left: 0; top: 4px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--la-brand) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E") center / 10px no-repeat; }
.plan li .muted { color: var(--la-muted); }
.plan .btn { width: 100%; }
.plan .soon-price { font-size: 15px; color: var(--la-muted); font-weight: 600; }
.faq details { border-bottom: 1px solid var(--la-line); padding: 16px 0; }
.faq summary { font-weight: 650; }
.faq details p { margin: 10px 0 0; color: var(--la-muted); }
.beta-tag, .soon { display: inline-block; vertical-align: 2px; margin-left: 6px; font-size: 11px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; color: var(--la-muted); background: var(--la-surface-2); border-radius: var(--la-r-pill); padding: 1px 8px; }
.beta-tag { color: var(--la-brand); background: var(--la-brand-ground); }

/* ---------------------------------------------------------------- footer (markup from the core layout) */
footer { margin-top: var(--la-s16); padding: var(--la-s10) 0 var(--la-s12); color: var(--la-muted); font-size: 14px; border-top: 1px solid var(--la-line); background: var(--la-surface); }
footer .wrap { display: flex; justify-content: space-between; gap: var(--la-s5); flex-wrap: wrap; align-items: center; }
footer nav { display: flex; gap: 6px 20px; flex-wrap: wrap; }
footer a { color: inherit; text-decoration: none; }
footer a:hover { color: var(--la-ink); }
footer a[aria-current="page"] { color: var(--la-ink); font-weight: 600; }

/* ---------------------------------------------------------------- code blocks (API, SDK, examples) */
.code { background: #0d0c22; color: #e8e8fb; border-radius: var(--la-r-md); overflow: hidden; border: 1px solid #24224a; box-shadow: var(--la-shadow-sm); }
.code-tabs { display: flex; gap: 2px; padding: 6px 6px 0; background: #15143a; flex-wrap: wrap; }
.code-tabs button { appearance: none; border: 0; background: transparent; color: #9d9cc9; cursor: pointer; font: 600 13px/1 var(--la-font); padding: 9px 12px; border-radius: 8px 8px 0 0; }
.code-tabs button[aria-selected="true"] { background: #0d0c22; color: #ffffff; }
.code-tabs button:focus-visible { outline: 2px solid var(--la-glow); outline-offset: -2px; }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; font: 13.5px/1.65 var(--la-mono); }
.code pre[hidden] { display: none; }
.code .c { color: #7c7ba8; }
.code .s { color: #a5f3fc; }
.code .k { color: #a9c7ff; }
.code-head { display: flex; justify-content: space-between; align-items: center; padding: 8px 14px; background: #15143a; font-size: 12px; color: #9d9cc9; border-bottom: 1px solid #24224a; }
.copy-code { appearance: none; border: 1px solid #2e2c5a; background: #0d0c22; color: #e8e8fb; border-radius: 7px; font: 600 12px var(--la-font); padding: 5px 10px; cursor: pointer; }
.copy-code:hover { border-color: var(--la-glow); }

/* ---------------------------------------------------------------- docs, API, tables */
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 28px; align-items: start; }
@media (max-width: 860px) { .two { grid-template-columns: 1fr; } }
.table-wrap { overflow-x: auto; }
table.api { width: 100%; border-collapse: collapse; font-size: 15px; }
table.api th, table.api td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--la-line); vertical-align: top; }
table.api th { font-size: 13px; color: var(--la-muted); font-weight: 600; }
table.api tr:last-child td { border-bottom: 0; }
table.api td:first-child { white-space: nowrap; }
.notes { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 760px) { .notes { grid-template-columns: 1fr; } }
.notes li { padding: 18px 20px; }
.notes h3 { font-size: 16px; margin: 0 0 4px; }
.notes p { margin: 0; color: var(--la-muted); font-size: 15px; }
.doc-grid { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 40px; align-items: start; padding-top: var(--la-s6); }
.doc-toc { position: sticky; top: 84px; font-size: 14px; display: grid; gap: 8px; max-height: calc(100vh - 100px); overflow: auto; }
.doc-toc a { color: var(--la-muted); text-decoration: none; }
.doc-toc a:hover { color: var(--la-ink); }
.doc h2 { margin-top: 44px; font-size: clamp(24px, 2.6vw, 30px); }
.doc > h2:first-child { margin-top: 0; }
.doc code.inline { overflow-wrap: anywhere; }
.doc ol, .doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
@media (max-width: 860px) { .doc-grid { grid-template-columns: minmax(0, 1fr); } .doc-toc { position: static; max-height: none; } }
main > .hero:not(.stage) { padding: var(--la-s12) 0 var(--la-s6); }
main > .hero:not(.stage) h1 { font-size: clamp(34px, 5vw, 54px); }

/* ---------------------------------------------------------------- legal pages */
.legal { max-width: 780px; margin: 0 auto; padding-top: 40px; padding-bottom: 8px; } /* side padding comes from .wrap */
.legal h1 { font-size: clamp(32px, 5vw, 44px); margin: 8px 0 8px; }
.legal .updated { color: var(--la-muted); margin: 0 0 22px; font-size: 15px; }
.legal .summary { padding: 20px 22px; margin: 0 0 30px; }
.legal .summary h2 { font-size: 17px; margin: 0 0 8px; }
.legal .summary ul { margin: 0; padding-left: 20px; }
.legal .summary li { margin: 4px 0; }
.legal h2 { font-size: 22px; margin: 34px 0 10px; }
.legal h3 { font-size: 17px; margin: 20px 0 6px; }
.legal p, .legal li { font-size: 16px; }
.legal ul { padding-left: 22px; }
.legal li { margin: 5px 0; }
.legal table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 10px 0 6px; }
.legal th, .legal td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--la-line); vertical-align: top; }
.legal th { font-size: 13px; color: var(--la-muted); font-weight: 600; }
.legal .table-wrap { overflow-x: auto; background: var(--la-surface); border: 1px solid var(--la-line); border-radius: 12px; }
mark.fill { background: #fff3bf; color: #5c4400; padding: 0 4px; border-radius: 4px; font-weight: 600; }
@media (prefers-color-scheme: dark) { mark.fill { background: #4a3b00; color: #ffe8a3; } }

/* ---------------------------------------------------------------- the /search/ page (the dialog is search.css) */
.search-main { padding-top: 24px; padding-bottom: 64px; max-width: 760px; }
.search-page { display: flex; gap: 10px; margin: 18px 0 8px; }
.search-page input[type="search"] { flex: 1; min-width: 0; font: inherit; font-size: 18px; color: var(--la-ink); background: var(--la-surface); border: 1px solid var(--la-line-strong); border-radius: 12px; padding: 12px 14px; }
.search-page input[type="search"]:focus-visible { outline: 3px solid var(--la-brand); outline-offset: 2px; }
.search-status { color: var(--la-muted); font-size: 14px; min-height: 1.5em; }
.search-results { padding: 0; }

/* ---------------------------------------------------------------- motion */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--la-ease), transform .6s var(--la-ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}
@media print { header.top, .feedback, footer, .stage::after { display: none; } .stage { background: none; color: #000; } }
/* AR-174: a note box (docs.css has the same for the API reference) */
.callout { margin: 16px 0; padding: 12px 16px; border: 1px solid var(--la-line); border-left: 3px solid var(--la-brand); border-radius: var(--la-r-sm); background: var(--la-brand-ground); font-size: 15px; }

/* ---------------------------------------------------------------- feedback as a floating bar (site.js) */
.feedback .fb-close { display: none; width: 32px; height: 32px; border: 0; border-radius: 50%; background: transparent; color: var(--la-muted); font-size: 22px; line-height: 1; }
.feedback .fb-close:hover { background: var(--la-surface-2); color: var(--la-ink); }
.feedback-dock { position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); width: min(760px, calc(100vw - 32px)); z-index: 60; animation: fb-up .35s var(--la-ease); }
.feedback.is-floating { margin: 0; padding: 12px 16px; box-shadow: var(--la-shadow-lg); max-height: min(70vh, 560px); overflow: auto; }
.feedback.is-floating .fb-close { display: inline-grid; place-items: center; }
.feedback.is-floating:not(.is-open) > :not(.row) { display: none; }
.feedback.is-floating h2 { font-size: 16px; }
@keyframes fb-up { from { opacity: 0; transform: translate(-50%, 16px); } to { opacity: 1; transform: translate(-50%, 0); } }
@media (prefers-reduced-motion: reduce) { .feedback-dock { animation: none; } }
@media print { .feedback-dock { display: none; } }

/* ---------------------------------------------------------------- AtlasLaunch AI: the chat demo (hero) */
.chat-demo { border-radius: var(--la-r-xl); background: rgba(255, 255, 255, .04); border: 1px solid var(--la-night-line); box-shadow: var(--la-shadow-lg), inset 0 1px 0 rgba(255, 255, 255, .06); overflow: hidden; }
.chat-demo .bar { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--la-night-line); color: var(--la-night-ink); font: 650 15px/1 var(--la-font); }
.chat-demo .bar img { width: 26px; height: 26px; border-radius: 7px; }
.chat-demo .bar .live { margin-left: auto; font: 600 12px/1 var(--la-font); color: var(--la-night-muted); display: inline-flex; align-items: center; gap: 6px; }
.chat-demo .log { padding: 18px; display: grid; gap: 12px; }
.chat-demo .msg { max-width: 86%; padding: 10px 14px; border-radius: 16px; font-size: 15px; line-height: 1.45; }
.chat-demo .msg.user { justify-self: end; background: var(--la-glow); color: var(--la-night); border-bottom-right-radius: 5px; font-weight: 550; }
.chat-demo .msg.bot { justify-self: start; background: rgba(255, 255, 255, .07); color: var(--la-night-ink); border: 1px solid var(--la-night-line); border-bottom-left-radius: 5px; }
.chat-demo .msg .src { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.chat-demo .msg .src span { font: 600 12px/1 var(--la-font); padding: 5px 8px; border-radius: var(--la-r-pill); background: rgba(165, 180, 252, .14); color: var(--la-glow); }
.chat-demo .msg .act { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; font: 650 12.5px/1 var(--la-font); color: var(--la-sky); }
.chat-demo .msg .act::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--la-sky); box-shadow: 0 0 0 3px rgba(103, 232, 249, .2); }
.chat-demo .input { display: flex; gap: 8px; align-items: center; padding: 12px 14px; border-top: 1px solid var(--la-night-line); }
.chat-demo .input span { flex: 1; color: var(--la-night-muted); font-size: 14px; padding: 9px 12px; border: 1px solid var(--la-night-line); border-radius: var(--la-r-md); }
.chat-demo .input i { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: rgba(255, 255, 255, .06); color: var(--la-night-ink); font-style: normal; }
.chat-demo .input i svg { width: 18px; height: 18px; }
.chat-demo .typing { justify-self: start; display: inline-flex; gap: 4px; padding: 12px 14px; border-radius: 16px; background: rgba(255, 255, 255, .07); border: 1px solid var(--la-night-line); }
.chat-demo .typing b { width: 6px; height: 6px; border-radius: 50%; background: var(--la-night-muted); animation: la-dot 1.2s infinite ease-in-out; }
.chat-demo .typing b:nth-child(2) { animation-delay: .15s; } .chat-demo .typing b:nth-child(3) { animation-delay: .3s; }
@keyframes la-dot { 0%, 80%, 100% { opacity: .3; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-3px); } }

/* A light chat card (docs and the actions section) */
.chat-card { background: var(--la-surface); border: 1px solid var(--la-line); border-radius: var(--la-r-lg); padding: var(--la-s5); display: grid; gap: 10px; box-shadow: var(--la-shadow-sm); }
.chat-card .msg { max-width: 90%; padding: 9px 13px; border-radius: 14px; font-size: 14.5px; }
.chat-card .msg.user { justify-self: end; background: var(--la-brand); color: var(--la-brand-ink); border-bottom-right-radius: 4px; }
.chat-card .msg.bot { justify-self: start; background: var(--la-surface-2); border-bottom-left-radius: 4px; }
.chat-card .msg .act { display: block; margin-top: 6px; font: 650 12px/1.3 var(--la-mono); color: var(--la-brand); }

/* Comparison table (home, pricing) */
.compare { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--la-surface); border: 1px solid var(--la-line); border-radius: var(--la-r-lg); overflow: hidden; font-size: 15px; }
.compare th, .compare td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--la-line); vertical-align: top; }
.compare tr:last-child td { border-bottom: 0; }
.compare thead th { font: 650 13px/1.3 var(--la-font); color: var(--la-muted); background: var(--la-surface-2); }
.compare td.yes { color: var(--la-ok); font-weight: 650; }
.compare td.no { color: var(--la-subtle); }
.compare th.us, .compare td.us { background: var(--la-brand-ground); }

/* Contact cards */
.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--la-s5); }
@media (max-width: 720px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-grid .card { padding: var(--la-s6); display: grid; gap: 8px; align-content: start; }
.contact-grid .card h2 { font-size: 19px; margin: var(--la-s3) 0 0; }
.contact-grid .card p { margin: 0; color: var(--la-muted); }
.contact-grid .card .btn { justify-self: start; margin-top: var(--la-s3); }
.chat-demo [hidden] { display: none !important; }