/* Luma Intelligence landing page. No external resources, no tracking. */
:root {
  --paper: #faf8f4;
  --surface: #ffffff;
  --surface-2: #f1f6f5;
  --ink: #1d2b2a;
  --ink-2: #44514f;
  --ink-3: #5d6a68;
  --line: #d8e3e0;
  --teal: #2e6b64;
  --teal-ink: #24564f;
  --teal-soft: #e7f1ef;
  --accent: #b8562a;
  --accent-soft: #fbeee6;
  --human: #fff4cf;
  --human-line: #9a7a12;
  --focus: #b8562a;
  --radius: 14px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121817;
    --surface: #18201f;
    --surface-2: #1c2826;
    --ink: #e8efed;
    --ink-2: #c3cfcc;
    --ink-3: #9eacaa;
    --line: #2c3a38;
    --teal: #7cc3b8;
    --teal-ink: #9fd6cd;
    --teal-soft: #1f3330;
    --accent: #f0a37c;
    --accent-soft: #3a2a22;
    --human: #3a3420;
    --human-line: #d9b64a;
    --focus: #f0a37c;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #121817; --surface: #18201f; --surface-2: #1c2826; --ink: #e8efed; --ink-2: #c3cfcc;
  --ink-3: #9eacaa; --line: #2c3a38; --teal: #7cc3b8; --teal-ink: #9fd6cd; --teal-soft: #1f3330;
  --accent: #f0a37c; --accent-soft: #3a2a22; --human: #3a3420; --human-line: #d9b64a; --focus: #f0a37c;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 17px/1.6 var(--sans);
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; height: auto; }
a { color: var(--teal-ink); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }

.skip { position: absolute; left: -9999px; top: 0; }
.skip:focus { left: 16px; top: 12px; background: var(--surface); padding: 8px 12px; z-index: 10; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
section { padding: 72px 0; }
section + section { border-top: 1px solid var(--line); }

/* header */
.site-head { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: saturate(1.2) blur(8px); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 700; letter-spacing: .01em; }
.brand svg { width: 28px; height: 28px; }
.nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.nav a { text-decoration: none; color: var(--ink-2); }
.nav a:hover { color: var(--accent); }
.nav .lang { font-weight: 600; color: var(--ink-3); }
@media (max-width: 760px) { .nav .hide-sm { display: none; } .nav { gap: 14px; } }

/* type */
h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -.01em; line-height: 1.15; margin: 0 0 .5em; }
h1 { font-size: clamp(36px, 5.4vw, 60px); }
h2 { font-size: clamp(28px, 3.6vw, 40px); }
h3 { font-size: 22px; }
.kicker { font: 700 13px/1.2 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--teal); margin: 0 0 14px; }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--ink-2); max-width: 46em; }
.muted { color: var(--ink-3); }
.after-grid { margin-top: 20px; }
.small { font-size: 14.5px; }

/* buttons */
.btns { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 14px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 20px; border-radius: 999px; font-weight: 650;
  text-decoration: none; border: 1.5px solid var(--teal); }
.btn.primary { background: var(--teal); color: var(--paper); }
.btn.primary:hover { background: var(--teal-ink); color: var(--paper); border-color: var(--teal-ink); }
.btn.ghost { color: var(--teal-ink); }
.btn.ghost:hover { background: var(--teal-soft); color: var(--teal-ink); }

/* hero */
.hero { padding: 88px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
.hero-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: 0 1px 0 var(--line); }
.hero-card .label { font: 700 12px/1 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }

/* layers diagram */
.layers { display: grid; gap: 10px; margin-top: 12px; }
.layer { border-radius: 12px; padding: 12px 14px; border: 1.5px solid var(--teal); background: var(--teal-soft); }
.layer.planned { border-style: dashed; border-color: var(--accent); background: var(--surface); }
.layer b { display: block; font-size: 15.5px; }
.layer span { font-size: 13.5px; color: var(--ink-2); }
.pill { display: inline-block; font: 700 11px/1 var(--sans); letter-spacing: .06em; text-transform: uppercase;
  padding: 5px 8px; border-radius: 999px; vertical-align: 2px; margin-left: 6px; }
.pill.live { background: var(--teal); color: var(--paper); }
.pill.planned { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent); }

/* grids */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 28px; }
@media (max-width: 900px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin-bottom: .35em; }
.card p { margin: 0 0 .6em; color: var(--ink-2); }
.card p:last-child { margin-bottom: 0; }
.card.planned { border: 1.5px dashed var(--accent); }
.card.live { border: 1.5px solid var(--teal); }
.num { font: 600 15px/1 var(--serif); color: var(--accent); display: block; margin-bottom: 10px; letter-spacing: .04em; }

/* dimensions */
.dims { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 28px; }
@media (max-width: 980px) { .dims { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .dims { grid-template-columns: 1fr; } }
.dim { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.dim .code { font: 700 12px/1 var(--sans); color: var(--accent); letter-spacing: .08em; }
.dim b { display: block; margin: 6px 0 4px; font-size: 16px; line-height: 1.3; }
.dim span { font-size: 14px; color: var(--ink-3); }

/* mock finding */
.mock { margin-top: 36px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: start; }
@media (max-width: 900px) { .mock { grid-template-columns: 1fr; } }
.finding { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.finding .bar { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; padding: 12px 18px;
  background: var(--surface-2); border-bottom: 1px solid var(--line); font-size: 14px; }
.finding .body { padding: 18px; }
.finding .rating { display: inline-block; font: 700 12px/1 var(--sans); letter-spacing: .06em; text-transform: uppercase;
  padding: 6px 9px; border-radius: 6px; background: var(--accent-soft); color: var(--accent); }
.finding ul { margin: 8px 0 12px; padding-left: 20px; }
.finding .meta { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13.5px; color: var(--ink-3); }
.finding .meta span { border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px; }
.finding .fb { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--line); }
.finding .fb span { font-size: 13px; border-radius: 999px; padding: 6px 11px; background: var(--teal-soft); color: var(--teal-ink); }
.stamp { font-size: 13px; color: var(--ink-3); border-left: 3px solid var(--accent); padding: 4px 0 4px 10px; margin: 10px 0 0; }

/* pipeline */
.pipe { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pipe li { background: var(--teal-soft); border: 1.5px solid var(--teal); border-radius: 10px; padding: 8px 12px; font-size: 14.5px; font-weight: 600; }
.pipe li.human { background: var(--human); border-color: var(--human-line); }
.pipe li.arrow { background: none; border: 0; padding: 0 2px; color: var(--ink-3); font-weight: 400; }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 28px; }
@media (max-width: 900px) { .facts { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .facts { grid-template-columns: 1fr; } }
.fact { border-top: 2px solid var(--teal); padding-top: 12px; }
.fact b { display: block; font-family: var(--serif); font-size: 22px; line-height: 1.2; margin-bottom: 4px; }
.fact span { font-size: 14.5px; color: var(--ink-2); }

/* pilot */
.pilot { background: var(--surface-2); }
.timeline { list-style: none; margin: 24px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
@media (max-width: 900px) { .timeline { grid-template-columns: 1fr; } }
.timeline li { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px; font-size: 14.5px; }
.timeline b { display: block; color: var(--teal-ink); font-size: 13px; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 4px; }
.checks { list-style: none; padding: 0; margin: 10px 0 0; }
.checks li { padding-left: 26px; position: relative; margin-bottom: 8px; color: var(--ink-2); }
.checks li::before { content: ""; position: absolute; left: 2px; top: .55em; width: 12px; height: 7px;
  border-left: 2.5px solid var(--teal); border-bottom: 2.5px solid var(--teal); transform: rotate(-45deg); }
.cta-box { margin-top: 32px; background: var(--teal); color: var(--paper); border-radius: var(--radius); padding: 28px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; }
.cta-box h3 { color: var(--paper); margin: 0 0 4px; }
.cta-box p { margin: 0; opacity: .92; }
.cta-box .btn { background: var(--paper); color: var(--teal-ink); border-color: var(--paper); }
.cta-box .btn:hover { background: var(--accent-soft); color: var(--teal-ink); }

/* team */
.person { display: flex; gap: 16px; align-items: flex-start; }
.avatar { flex: none; width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center;
  background: var(--teal-soft); color: var(--teal-ink); font: 600 19px/1 var(--serif); border: 1.5px solid var(--teal); }
.person .role { font-weight: 650; color: var(--accent); font-size: 14.5px; margin: 0 0 6px; }

/* footer */
.site-foot { background: var(--surface); border-top: 1px solid var(--line); padding: 48px 0 40px; font-size: 14.5px; color: var(--ink-2); }
.foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 28px; }
@media (max-width: 900px) { .foot-grid { grid-template-columns: 1fr; } }
.site-foot h2 { font-family: var(--sans); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 10px; }
.site-foot dl { display: grid; grid-template-columns: max-content 1fr; gap: 2px 12px; margin: 0; }
.site-foot dt { color: var(--ink-3); }
.site-foot dd { margin: 0; }

/* prose page */
.prose { max-width: 760px; }
.prose h2 { font-size: 26px; margin-top: 1.4em; }
.prose p, .prose li { color: var(--ink-2); }

/* v3 (2026-10-11): demos, pitch slot */
.pill.proto { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent); }
.moments { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
@media (max-width: 900px) { .moments { grid-template-columns: 1fr; } }
.demos { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 28px; }
@media (max-width: 900px) { .demos { grid-template-columns: 1fr; } }
.demo { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.demo video, .demo .ph { width: 100%; aspect-ratio: 16 / 10; display: block; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.demo .ph { display: grid; place-items: center; color: var(--ink-3); font-size: 15px; text-align: center; padding: 20px; }
.demo .in { padding: 18px 20px 20px; display: grid; gap: 8px; }
.demo h3 { margin: 0; }
.demo .q { font-family: var(--serif); font-size: 19px; color: var(--ink); margin: 0; }
.demo .meta { font-size: 13.5px; color: var(--ink-3); margin: 0; }
.demo .links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.pitch { display: grid; grid-template-columns: 1.2fr .8fr; gap: 26px; align-items: center; margin-top: 24px; }
@media (max-width: 900px) { .pitch { grid-template-columns: 1fr; } }
.pitch video, .pitch .ph { width: 100%; aspect-ratio: 16 / 9; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface-2); display: grid; place-items: center; color: var(--ink-3); }
.proof { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.proof li { padding-left: 26px; position: relative; color: var(--ink-2); }
.proof li::before { content: ""; position: absolute; left: 2px; top: .55em; width: 12px; height: 7px; border-left: 2.5px solid var(--teal); border-bottom: 2.5px solid var(--teal); transform: rotate(-45deg); }
.demo .in > .pill { justify-self: start; }
.moments.two { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .moments.two { grid-template-columns: 1fr; } }