:root {
  --base: #060d1a;
  --surface: #0d1526;
  --surface-alt: #0a0f1a;
  --border: #1e2a3e;
  --lavender: #ad94f9;
  --purple: #8369e4;
  --teal: #3c9cc4;
  --text: #ffffff;
  --text-2: #8b92a0;
  --text-3: #6b7280;
  --success: #34d399;
  --warning: #fbbf24;
  --error: #f87171;
  --font-display: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", Consolas, monospace;
  --radius: 0.5rem;
  --max: 1280px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  background: var(--base);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
code, pre, kbd { font-family: var(--font-mono); }
h1, h2, h3, h4 { font-family: var(--font-display); margin: 0; letter-spacing: -0.02em; line-height: 1.1; }
p { margin: 0; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--lavender); outline-offset: 2px; border-radius: 4px; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
@media (min-width: 768px) { .container { padding: 0 32px; } }

/* ---------- banner + nav ---------- */
.banner {
  position: relative; z-index: 60;
  display: flex; justify-content: center; align-items: center; gap: 10px;
  padding: 8px 16px; font-size: 13px; color: var(--text-2);
  background: linear-gradient(90deg, rgba(131,105,228,.14), rgba(60,156,196,.14));
  border-bottom: 1px solid var(--border);
}
.banner a { color: var(--text); }
.banner a:hover { color: var(--lavender); }
.live {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: .08em;
  color: var(--lavender); border: 1px solid rgba(173,148,249,.35); border-radius: 999px; padding: 1px 8px;
}
.live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--success); box-shadow: 0 0 8px var(--success); }

.nav {
  position: sticky; top: 0; z-index: 50; height: 72px;
  background: rgba(6,13,26,.72); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent; transition: border-color .2s;
}
.nav.scrolled { border-bottom-color: var(--border); }
.nav .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 20px; letter-spacing: -0.03em; }
.logo svg { width: 28px; height: 28px; }
.logo span { color: var(--text-2); font-weight: 500; }
.nav-links { display: none; align-items: center; gap: 28px; }
.nav-links a { font-size: 14px; color: var(--text-2); transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.nav-links .divider { width: 1px; height: 20px; background: var(--border); }
@media (min-width: 900px) { .nav-links { display: flex; } .nav-burger { display: none; } }
.nav-burger { background: none; border: 0; padding: 8px; }
.mobile-menu {
  position: fixed; inset: 0; z-index: 70; background: rgba(6,13,26,.97); backdrop-filter: blur(20px);
  padding: 24px; display: none; flex-direction: column; gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 18px; }
.mobile-menu .close { align-self: flex-end; background: none; border: 0; padding: 8px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: 0.375rem; font-size: 14px; font-weight: 600;
  border: 1px solid transparent; transition: transform .2s, filter .2s, border-color .2s, background .2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--lavender); color: var(--base); }
.btn-primary:hover { filter: brightness(1.1); }
.btn-ghost { border-color: var(--border); color: var(--text); background: rgba(13,21,38,.6); }
.btn-ghost:hover { border-color: rgba(173,148,249,.5); }
.btn-lg { padding: 14px 24px; font-size: 15px; }
.btn-cmd { font-family: var(--font-mono); font-weight: 500; }
.btn-cmd .prompt { color: var(--teal); }
.btn-cmd .copied { color: var(--success); font-size: 12px; }

/* ---------- hero ---------- */
.hero { position: relative; padding: 96px 0 56px; overflow: hidden; text-align: center; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto; height: 720px; pointer-events: none;
  background:
    radial-gradient(ellipse 50% 45% at 50% 30%, rgba(131,105,228,.28), transparent 70%),
    radial-gradient(ellipse 35% 35% at 75% 55%, rgba(60,156,196,.18), transparent 70%);
}
.hero .grid-bg {
  position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 60% 55% at 50% 35%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 60% 55% at 50% 35%, #000 20%, transparent 75%);
}
.hero .container { position: relative; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 28px;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-2);
  border: 1px solid var(--border); background: rgba(13,21,38,.7); padding: 6px 14px; border-radius: 999px;
}
.eyebrow b { color: var(--lavender); font-weight: 600; }
.hero h1 { font-size: clamp(40px, 7.4vw, 88px); font-weight: 800; letter-spacing: -0.04em; }
.grad { background: linear-gradient(90deg, var(--lavender), var(--teal)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .sub { max-width: 640px; margin: 24px auto 0; font-size: clamp(16px, 2vw, 19px); color: var(--text-2); }
.hero .ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 36px; }

.marquee { margin-top: 72px; position: relative; overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); margin-bottom: 18px; }
.marquee-track { display: flex; gap: 12px; width: max-content; animation: scroll 40s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface); font-size: 14px; color: var(--text-2); white-space: nowrap;
}
.chip i { width: 6px; height: 6px; border-radius: 50%; }
@keyframes scroll { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; flex-wrap: wrap; width: auto; justify-content: center; } }

/* ---------- sections ---------- */
section { padding: 96px 0; }
.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.kicker { font-family: var(--font-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--teal); margin-bottom: 14px; }
.section-head h2 { font-size: clamp(32px, 4.6vw, 52px); font-weight: 700; }
.section-head p { margin-top: 16px; font-size: 17px; color: var(--text-2); }
.alt { background: var(--surface-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 28px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: rgba(173,148,249,.35); }
.cards { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .cards-2, .cards-4 { grid-template-columns: repeat(2, 1fr); } .cards-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .cards-3 { grid-template-columns: repeat(3, 1fr); } .cards-4 { grid-template-columns: repeat(4, 1fr); } }
.card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.card p { color: var(--text-2); font-size: 15px; }
.card .num { font-family: var(--font-mono); font-size: 13px; color: var(--lavender); margin-bottom: 18px; }
.icon {
  width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; margin-bottom: 18px;
  background: rgba(173,148,249,.1); border: 1px solid rgba(173,148,249,.25); color: var(--lavender);
}
.icon svg { width: 20px; height: 20px; }
.icon.teal { background: rgba(60,156,196,.1); border-color: rgba(60,156,196,.3); color: var(--teal); }

/* ---------- install ---------- */
.install { max-width: 860px; margin: 0 auto; }
.tabs { display: inline-flex; padding: 4px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); margin-bottom: 16px; }
.tab { border: 0; background: none; padding: 8px 18px; border-radius: 7px; font-size: 14px; color: var(--text-2); }
.tab[aria-selected="true"] { background: rgba(173,148,249,.14); color: var(--text); }
.terminal { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: #050a14; text-align: left; }
.terminal-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface); }
.terminal-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.terminal-bar span { margin-left: 8px; font-family: var(--font-mono); font-size: 12px; color: var(--text-3); flex: 1; }
.copy { border: 1px solid var(--border); background: none; border-radius: 6px; padding: 4px 10px; font-size: 12px; color: var(--text-2); font-family: var(--font-mono); }
.copy:hover { color: var(--text); border-color: var(--lavender); }
.terminal pre { margin: 0; padding: 20px; font-size: 13.5px; line-height: 1.75; overflow-x: auto; color: #d6dae3; }
.terminal .c { color: var(--text-3); }
.terminal .p { color: var(--teal); user-select: none; }
.terminal .k { color: var(--lavender); }
.terminal .s { color: #9fe0c2; }
.install-note { margin-top: 14px; font-size: 14px; color: var(--text-3); text-align: center; }
.install .ctas, .providers-ctas { display: flex; justify-content: center; gap: 12px; margin-top: 28px; flex-wrap: wrap; }

/* ---------- playground ---------- */
.pg { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .pg { grid-template-columns: 5fr 7fr; } }
.pg-panel { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 24px; min-width: 0; }
.field { margin-bottom: 20px; }
.field > label, .field > .label { display: block; font-size: 12px; font-family: var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); margin-bottom: 8px; }
textarea, select, input[type="number"] {
  width: 100%; background: var(--surface-alt); border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font: inherit; font-size: 15px; padding: 12px 14px;
}
textarea { resize: vertical; min-height: 76px; font-family: var(--font-body); }
textarea:focus, select:focus, input:focus { outline: none; border-color: var(--lavender); }
.presets { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.preset { border: 1px solid var(--border); background: none; border-radius: 999px; padding: 4px 12px; font-size: 13px; color: var(--text-2); }
.preset:hover { color: var(--text); border-color: var(--lavender); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.toggles { display: flex; flex-wrap: wrap; gap: 6px; }
.toggle { border: 1px solid var(--border); background: var(--surface-alt); border-radius: 8px; padding: 6px 12px; font-size: 13px; font-family: var(--font-mono); color: var(--text-2); }
.toggle[aria-pressed="true"] { border-color: rgba(173,148,249,.6); background: rgba(173,148,249,.12); color: var(--text); }
.toggle.danger[aria-pressed="true"] { border-color: rgba(248,113,113,.6); background: rgba(248,113,113,.12); }
.seg { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.seg button { flex: 1; border: 0; background: var(--surface-alt); padding: 8px 6px; font-size: 13px; color: var(--text-2); }
.seg button + button { border-left: 1px solid var(--border); }
.seg button[aria-pressed="true"] { background: rgba(173,148,249,.14); color: var(--text); }
input[type="range"] { width: 100%; accent-color: var(--lavender); }
.range-val { font-family: var(--font-mono); color: var(--text); font-size: 13px; float: right; text-transform: none; letter-spacing: 0; }

.pipeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 20px; }
.stage { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; background: var(--surface-alt); min-width: 0; }
.stage small { display: block; font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); }
.stage b { display: block; font-size: 13px; font-weight: 600; margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stage.on { border-color: rgba(173,148,249,.5); animation: pulse .5s ease; }
@keyframes pulse { from { background: rgba(173,148,249,.2); } }
@media (max-width: 560px) { .pipeline { grid-template-columns: repeat(2, 1fr); } }

.result-head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.result-model { font-family: var(--font-display); font-size: clamp(24px, 3vw, 32px); font-weight: 700; letter-spacing: -0.02em; word-break: break-word; }
.result-desc { color: var(--text-2); font-size: 14px; margin-top: 4px; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge { font-family: var(--font-mono); font-size: 12px; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--border); color: var(--text-2); }
.badge.onboard { color: var(--success); border-color: rgba(52,211,153,.4); }
.badge.edge { color: var(--teal); border-color: rgba(60,156,196,.5); }
.badge.cloud { color: var(--lavender); border-color: rgba(173,148,249,.5); }
.badge.normal { color: var(--text-2); }
.badge.elevated { color: var(--warning); border-color: rgba(251,191,36,.45); }
.badge.critical { color: var(--error); border-color: rgba(248,113,113,.5); }
.guard { border: 1px solid rgba(251,191,36,.35); background: rgba(251,191,36,.06); border-radius: 10px; padding: 10px 14px; font-size: 13px; font-family: var(--font-mono); color: var(--warning); margin-bottom: 18px; }
.guard.stop { border-color: rgba(248,113,113,.4); background: rgba(248,113,113,.07); color: var(--error); }
.subhead { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); margin: 0 0 10px; }
.bars { display: grid; gap: 8px; margin-bottom: 20px; }
.bar { display: grid; grid-template-columns: minmax(0, 140px) minmax(60px, 1fr) minmax(0, max-content); align-items: center; gap: 10px; font-size: 13px; }
.bar .name { font-family: var(--font-mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-2); }
.bar.win .name { color: var(--text); }
.bar .track { height: 8px; background: var(--surface-alt); border-radius: 999px; overflow: hidden; border: 1px solid var(--border); }
.bar .fill { display: block; height: 100%; background: var(--border); border-radius: 999px; transition: width .35s ease; }
.bar.win .fill { background: linear-gradient(90deg, var(--purple), var(--lavender)); }
.bar.no .fill { background: transparent; }
.bar .val { font-family: var(--font-mono); font-size: 12px; color: var(--text-3); min-width: 0; text-align: right; }
.bar.no .val { color: var(--error); opacity: .8; }
.trace { background: #050a14; border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; font-family: var(--font-mono); font-size: 12px; line-height: 1.8; color: var(--text-2); overflow-x: auto; white-space: pre; }
.trace .t-sel { color: var(--success); }
.trace .t-rej { color: var(--text-3); }
.trace .t-dec { color: var(--lavender); }

/* ---------- architecture ---------- */
.dims { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .dims { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .dims { grid-template-columns: repeat(4, 1fr); } }
.dim h3 { font-size: 17px; margin-bottom: 6px; }
.dim p { font-size: 14px; color: var(--text-2); margin-bottom: 16px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-family: var(--font-mono); font-size: 12px; padding: 3px 9px; border-radius: 6px; background: var(--surface-alt); border: 1px solid var(--border); color: var(--text-2); }
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 16px; }
@media (min-width: 900px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stat { text-align: center; padding: 28px 16px; }
.stat b { display: block; font-family: var(--font-display); font-size: 44px; font-weight: 800; letter-spacing: -0.03em; }
.stat span { font-size: 14px; color: var(--text-2); }

/* ---------- flow diagram ---------- */
.flow { display: grid; gap: 12px; grid-template-columns: 1fr; align-items: stretch; }
@media (min-width: 1024px) { .flow { grid-template-columns: 1fr 24px 1.3fr 24px 1fr; } }
.flow .arrow { display: grid; place-items: center; color: var(--text-3); }
.flow .arrow svg { width: 20px; height: 20px; transform: rotate(90deg); }
@media (min-width: 1024px) { .flow .arrow svg { transform: none; } }
.layer { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 22px; }
.layer.core { border-color: rgba(173,148,249,.45); background: linear-gradient(180deg, rgba(131,105,228,.1), var(--surface)); }
.layer h3 { font-size: 16px; margin-bottom: 4px; }
.layer > p { font-size: 13px; color: var(--text-2); margin-bottom: 14px; }
.layer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.layer li { font-size: 13px; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-alt); display: flex; justify-content: space-between; gap: 8px; }
.layer li code { font-size: 12px; color: var(--teal); }
.layer li small { color: var(--text-3); font-family: var(--font-mono); font-size: 11px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.steps div { text-align: center; padding: 12px 4px; border: 1px solid rgba(173,148,249,.3); border-radius: 8px; font-size: 12px; font-weight: 600; background: rgba(173,148,249,.06); }
.steps div small { display: block; font-family: var(--font-mono); font-weight: 400; font-size: 10px; color: var(--text-3); }
.modes { margin-top: 16px; }
.mode pre { margin: 16px 0 0; background: #050a14; border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; font-size: 13px; overflow-x: auto; }
.mode pre .p { color: var(--teal); }

/* ---------- safety ---------- */
.split { display: grid; gap: 48px; align-items: center; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .split { grid-template-columns: 1fr 1fr; } }
.split .section-head { text-align: left; margin: 0; }
.checks { list-style: none; padding: 0; margin: 28px 0 32px; display: grid; gap: 14px; }
.checks li { display: flex; gap: 12px; color: var(--text-2); }
.checks li b { color: var(--text); font-weight: 600; }
.checks svg { flex: none; width: 20px; height: 20px; color: var(--success); margin-top: 2px; }
.envelope { position: relative; aspect-ratio: 1; max-width: 480px; width: 100%; margin: 0 auto; }
.envelope svg { width: 100%; height: 100%; }
.ring-pulse { transform-origin: 240px 240px; animation: ring 3.2s ease-out infinite; }
@keyframes ring { from { transform: scale(.6); opacity: .8; } to { transform: scale(1.15); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .ring-pulse { animation: none; opacity: 0; } }

/* ---------- research ---------- */
.papers { display: grid; gap: 0; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.paper { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center; padding: 18px 22px; background: var(--surface); border-top: 1px solid var(--border); transition: background .15s; }
.paper:first-child { border-top: 0; }
.paper:hover { background: #111b30; }
.paper b { display: block; font-weight: 600; font-size: 15px; }
.paper span { font-size: 13px; color: var(--text-3); }
.paper em { font-style: normal; font-family: var(--font-mono); font-size: 12px; color: var(--text-2); white-space: nowrap; }
.paper.featured { background: linear-gradient(90deg, rgba(131,105,228,.12), var(--surface)); }

/* ---------- oss ---------- */
.oss { display: grid; gap: 12px; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px) { .oss { grid-template-columns: repeat(4, 1fr); } }
.oss a { display: block; padding: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; transition: border-color .2s, transform .2s; }
.oss a:hover { border-color: rgba(173,148,249,.4); transform: translateY(-2px); }
.oss b { display: block; font-family: var(--font-display); font-size: 16px; }
.oss span { font-size: 13px; color: var(--text-2); }

/* ---------- closing ---------- */
.closing h2 { font-size: clamp(36px, 5.5vw, 64px); text-align: center; font-weight: 800; margin-bottom: 40px; }
.closing .card { display: flex; flex-direction: column; gap: 14px; padding: 32px; }
.closing .card:hover { transform: translateY(-2px); }
.closing .card .go { color: var(--lavender); font-weight: 600; font-size: 14px; margin-top: auto; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--border); padding: 64px 0 40px; }
.foot { display: grid; gap: 40px; grid-template-columns: 1fr; }
@media (min-width: 768px) { .foot { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.foot p { color: var(--text-2); font-size: 14px; max-width: 320px; margin-top: 14px; }
.foot h4 { font-family: var(--font-body); font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 14px; letter-spacing: 0; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.foot li a { color: var(--text-2); font-size: 14px; }
.foot li a:hover { color: var(--text); }
.copyright { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-3); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

@media (max-width: 600px) {
  .banner .banner-text { display: none; }
  .eyebrow .eyebrow-tail { display: none; }
}

/* ---------- SO-101 demo ---------- */
.demo-mount { min-height: 420px; }
.demo-loading { display: grid; place-items: center; min-height: 420px; border: 1px solid var(--border); border-radius: 16px; color: var(--text-3); font-family: var(--font-mono); font-size: 13px; padding: 24px; text-align: center; background: var(--surface); }
.demo { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .demo { grid-template-columns: minmax(0, 1fr) 340px; } }
.demo-stage { position: relative; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: var(--base); aspect-ratio: 16 / 11; min-height: 340px; }
.demo-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; touch-action: none; }
.demo-stage canvas:active { cursor: grabbing; }
.demo-labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.demo-label { position: absolute; left: 0; top: 0; opacity: 0; transition: opacity .25s; white-space: nowrap; font-family: var(--font-mono); font-size: 11px; padding: 2px 7px; border-radius: 4px; background: rgba(60,156,196,.9); color: var(--base); font-weight: 600; }
.demo-label.target { background: rgba(173,148,249,.95); }
.demo-label.on { opacity: 1; }
.demo-label em { font-style: normal; font-weight: 400; opacity: .75; }
.demo-topbar { position: absolute; top: 12px; left: 12px; right: 12px; display: flex; justify-content: space-between; gap: 8px; pointer-events: none; flex-wrap: wrap; }
.demo-topbar > span { font-family: var(--font-mono); font-size: 11px; padding: 5px 10px; border-radius: 999px; background: rgba(6,13,26,.75); border: 1px solid var(--border); backdrop-filter: blur(8px); color: var(--text-2); }
.demo-live { display: inline-flex; align-items: center; gap: 6px; }
.demo-live i { width: 6px; height: 6px; border-radius: 50%; background: var(--success); box-shadow: 0 0 8px var(--success); }
.demo-status.ok { color: var(--success); border-color: rgba(52,211,153,.4); }
.demo-status.stop { color: var(--error); border-color: rgba(248,113,113,.5); }
.demo-controls { position: absolute; left: 12px; bottom: 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.demo-btn { border: 1px solid var(--border); background: rgba(6,13,26,.8); backdrop-filter: blur(8px); border-radius: 8px; padding: 7px 14px; font-size: 12px; font-family: var(--font-mono); color: var(--text); }
.demo-btn:hover { border-color: var(--lavender); }
.demo-btn.estop { border-color: rgba(248,113,113,.6); color: var(--error); font-weight: 600; }
.demo-btn.estop:hover { background: rgba(248,113,113,.15); }
.demo-btn.onnx { border-color: rgba(60,156,196,.6); color: var(--teal); }
.demo-btn.onnx[aria-pressed="true"] { background: rgba(60,156,196,.18); color: var(--text); }
.demo-btn:disabled { opacity: .5; cursor: not-allowed; }
.demo-banner { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); max-width: calc(100% - 32px); text-align: center; font-family: var(--font-mono); font-size: 13px; padding: 12px 18px; border-radius: 10px; background: rgba(40,10,16,.88); border: 1px solid rgba(248,113,113,.6); color: #fecaca; }
.demo-banner b { color: var(--error); margin-right: 6px; }
.demo.stopped .demo-stage { border-color: rgba(248,113,113,.6); box-shadow: 0 0 0 1px rgba(248,113,113,.25), 0 0 40px rgba(248,113,113,.12); }
.demo-dets { position: absolute; inset: 0; pointer-events: none; }
.demo-dets div { position: absolute; border: 2px solid var(--lavender); border-radius: 4px; box-shadow: 0 0 12px rgba(173,148,249,.4); }
.demo-dets span { position: absolute; left: -2px; top: -20px; font-family: var(--font-mono); font-size: 10px; font-weight: 600; background: var(--lavender); color: var(--base); padding: 1px 6px; border-radius: 3px; white-space: nowrap; }
.demo-progress { position: absolute; left: 12px; right: 12px; bottom: 56px; font-family: var(--font-mono); font-size: 11px; color: var(--text-2); background: rgba(6,13,26,.85); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.demo-progress i { display: block; height: 4px; margin-top: 6px; border-radius: 99px; background: var(--border); overflow: hidden; }
.demo-progress em { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--teal), var(--lavender)); transition: width .2s; }

.demo-hud { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 18px; display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.demo-hud small { display: block; font-family: var(--font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); margin-bottom: 6px; }
.demo-instr { font-family: var(--font-display); font-size: 17px; font-weight: 600; min-height: 26px; }
.demo-instr .caret { display: inline-block; width: 2px; height: 18px; background: var(--lavender); vertical-align: -3px; margin-left: 2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.demo-stages { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.demo-stages li { display: flex; gap: 12px; align-items: flex-start; border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; background: var(--surface-alt); transition: border-color .2s, background .2s; min-width: 0; }
.demo-stages li > div { min-width: 0; }
.demo-stages b.model { display: block; font-family: var(--font-mono); font-size: 14px; overflow-wrap: anywhere; }
.demo-stages .meta { display: block; font-size: 11.5px; color: var(--text-2); font-family: var(--font-mono); margin-top: 2px; line-height: 1.6; }
.demo-stages .meta .loc { padding: 0 6px; border-radius: 4px; border: 1px solid var(--border); margin-right: 4px; }
.demo-stages .meta .loc.onboard { color: var(--success); } .demo-stages .meta .loc.edge { color: var(--teal); }
.demo-stages .meta .loc.cloud { color: var(--lavender); } .demo-stages .meta .loc.browser { color: var(--warning); }
.demo-stages .meta .fb, .demo-stages .meta .out { color: var(--text-3); }
.demo-dot { flex: none; width: 10px; height: 10px; border-radius: 50%; margin-top: 4px; border: 2px solid var(--border); }
.demo-stages li[data-state="running"] { border-color: rgba(173,148,249,.6); background: rgba(173,148,249,.07); }
.demo-stages li[data-state="running"] .demo-dot { border-color: var(--lavender); background: var(--lavender); animation: pulse-dot 1s infinite; }
.demo-stages li[data-state="done"] .demo-dot { border-color: var(--success); background: var(--success); }
.demo-stages li[data-state="halted"] { border-color: rgba(248,113,113,.5); }
.demo-stages li[data-state="halted"] .demo-dot { border-color: var(--error); background: var(--error); }
@keyframes pulse-dot { 50% { box-shadow: 0 0 0 5px rgba(173,148,249,.15); } }
.demo-plan { margin: 0; padding: 0 0 0 22px; font-size: 13px; color: var(--text-3); min-height: 24px; }
.demo-plan li { padding: 1px 0; }
.demo-plan li.now { color: var(--text); } .demo-plan li.now::marker { color: var(--lavender); }
.demo-plan li.done { color: var(--success); }
.demo-plan code { font-size: 12px; }
.demo-joints { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 14px; }
.demo-joints div { display: grid; grid-template-columns: 1fr auto; font-size: 11px; font-family: var(--font-mono); color: var(--text-3); }
.demo-joints b { font-weight: 500; color: var(--text-2); }
.demo-joints i { grid-column: 1 / -1; height: 3px; background: var(--surface-alt); border-radius: 99px; margin-top: 3px; overflow: hidden; }
.demo-joints em { display: block; height: 100%; background: var(--teal); width: 0; }
.demo-note { font-size: 12px; color: var(--text-3); margin-top: auto; }
.demo-links { text-align: center; margin-top: 16px; font-size: 14px; }
.demo-links a { color: var(--lavender); }

/* ---------- role-grouped model set ---------- */
.roles { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .roles { grid-template-columns: repeat(3, 1fr); } }
.role { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.role-head { display: flex; gap: 14px; align-items: flex-start; padding: 4px 4px 10px; }
.role-num { font-family: var(--font-mono); font-size: 12px; color: var(--lavender); border: 1px solid rgba(173,148,249,.4); border-radius: 8px; padding: 6px 8px; }
.role-head h3 { font-size: 22px; }
.role-head h3 em { font-style: normal; color: var(--text-3); font-weight: 500; }
.role-head p { font-size: 14px; color: var(--text-2); margin-top: 4px; }
.model-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; transition: border-color .2s; }
.model-card:hover { border-color: rgba(173,148,249,.35); }
.model-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.model-top b { font-family: var(--font-mono); font-size: 14px; }
.model-card p { font-size: 13px; color: var(--text-2); margin: 8px 0 10px; }
.model-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.model-meta span { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); border: 1px solid var(--border); border-radius: 5px; padding: 1px 7px; }
.model-meta .onnx { color: var(--warning); border-color: rgba(251,191,36,.4); }
.badge.browser { color: var(--warning); border-color: rgba(251,191,36,.45); }
.failsafe { margin-top: 16px; padding: 14px 18px; border: 1px dashed rgba(248,113,113,.4); border-radius: 12px; font-size: 14px; color: var(--text-2); display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.failsafe b { font-family: var(--font-mono); color: var(--text); }

/* one prompt, one click */
.run-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 14px; }
.run-row .btn { padding: 10px 22px; border: 0; }
.run-row .btn:disabled { opacity: .6; cursor: progress; transform: none; }
.keys-toggle { background: none; border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; font-size: 13px; font-family: var(--font-mono); color: var(--text-2); }
.keys-toggle:hover, .keys-toggle[aria-expanded="true"] { color: var(--text); border-color: var(--lavender); }
#keys-count { color: var(--success); }
.run-hint { font-size: 12px; font-family: var(--font-mono); color: var(--text-3); }
.keys { margin-top: 14px; padding: 16px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-alt); }
.keys-note { font-size: 13px; color: var(--text-2); margin-bottom: 12px; }
.key-field { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; align-items: center; margin-bottom: 12px; }
.key-field label { grid-column: 1 / -1; font-size: 12px; font-family: var(--font-mono); color: var(--text-3); }
.key-field input { min-width: 0; width: 100%; background: var(--base); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; color: var(--text); font-family: var(--font-mono); font-size: 13px; }
.key-field input:focus { outline: none; border-color: var(--lavender); }
.key-field a { font-size: 12px; color: var(--teal); white-space: nowrap; }
.keys-remember { display: flex; gap: 8px; align-items: center; font-size: 13px; color: var(--text-2); }
.answer { border: 1px solid rgba(173,148,249,.35); background: rgba(173,148,249,.06); border-radius: 10px; padding: 12px 14px; font-size: 14px; line-height: 1.6; color: var(--text); margin-bottom: 18px; white-space: pre-wrap; word-break: break-word; }
.answer code { font-size: 12px; color: var(--teal); }
.answer.error { border-color: rgba(248,113,113,.4); background: rgba(248,113,113,.07); color: var(--error); }
.answer.stop { border-color: rgba(248,113,113,.4); color: var(--error); font-family: var(--font-mono); font-size: 13px; }
.answer-head { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--lavender); margin-bottom: 6px; white-space: normal; }
.answer-wait { color: var(--text-3); }
.badge.provider { color: var(--lavender); border-color: rgba(173,148,249,.35); }