/* ───────── Design tokens ───────── */
:root {
  --bg: #070a12;
  --bg-2: #0a0f1a;
  --surface: rgba(16, 22, 36, 0.62);
  --surface-2: rgba(22, 30, 48, 0.8);
  --line: rgba(0, 229, 255, 0.16);
  --line-strong: rgba(0, 229, 255, 0.4);
  --cyan: #00e5ff;
  --green: #00ff88;
  --pink: #ff3366;
  --purple: #a855f7;
  --text: #e8eef9;
  --muted: #8b9ab3;
  --dim: #5d6b85;
  --code-bg: #060912;
  --font: 'Outfit', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cyan); text-decoration: none; transition: color .2s; }
a:hover { color: var(--green); }
code { font-family: var(--mono); font-size: .88em; color: var(--cyan); background: rgba(0,229,255,.08); padding: .1em .4em; border-radius: 5px; }
em { font-style: normal; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 6px; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 1.5rem; }
.narrow { max-width: 860px; }
.muted { color: var(--muted); }
.gap-top { margin-top: 1.6rem; }

/* ───────── Background FX ───────── */
.bg-fx { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(130px); opacity: .28; animation: drift 24s ease-in-out infinite alternate; }
.orb-a { width: 560px; height: 560px; background: var(--cyan); top: -12%; left: 8%; }
.orb-b { width: 480px; height: 480px; background: var(--purple); bottom: -14%; right: 2%; opacity: .18; animation-duration: 30s; }
.grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 30%, transparent 80%);
  mask-image: radial-gradient(circle at 50% 30%, #000 30%, transparent 80%);
}
@keyframes drift { from { transform: translate(0,0) scale(1); } to { transform: translate(40px, 30px) scale(1.1); } }
@media (prefers-reduced-motion: reduce) { .orb, .pill i { animation: none; } html { scroll-behavior: auto; } * { transition: none !important; } }

/* ───────── Header ───────── */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(7,10,18,.72); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; gap: 1.5rem; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: .55rem; font-weight: 800; font-size: 1.2rem; letter-spacing: .06em; color: var(--text); }
.brand:hover { color: var(--text); }
.brand-mark { color: var(--cyan); font-size: 1.5rem; text-shadow: 0 0 14px var(--cyan); }
.brand em { font-family: var(--mono); font-size: .66rem; font-weight: 500; letter-spacing: 0; color: var(--green); border: 1px solid rgba(0,255,136,.35); background: rgba(0,255,136,.08); padding: .12rem .5rem; border-radius: 999px; }
.links { display: flex; gap: 1.8rem; margin-left: auto; }
.links a { color: var(--muted); font-size: .93rem; font-weight: 500; position: relative; padding: .3rem 0; }
.links a:hover, .links a.active { color: var(--text); }
.links a.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px; background: linear-gradient(90deg, var(--cyan), var(--green)); border-radius: 2px; }
.burger { display: none; margin-left: auto; background: none; border: 0; cursor: pointer; padding: .4rem; flex-direction: column; gap: 5px; }
.burger span { display: block; width: 22px; height: 2px; background: var(--text); transition: transform .25s var(--ease), opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ───────── Buttons ───────── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; font: 600 .95rem var(--font); padding: .8rem 1.5rem; border-radius: 10px; border: 1px solid transparent; cursor: pointer; transition: transform .25s var(--ease), box-shadow .25s, background .25s, border-color .25s; }
.btn-sm { padding: .5rem 1rem; font-size: .85rem; }
.btn-primary { background: linear-gradient(135deg, var(--cyan), var(--green)); color: #03121a; box-shadow: 0 6px 22px rgba(0,229,255,.28); }
.btn-primary:hover { color: #03121a; transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,255,136,.35); }
.btn-ghost { background: rgba(255,255,255,.04); color: var(--text); border-color: var(--line); }
.btn-ghost:hover { color: var(--text); border-color: var(--cyan); background: rgba(0,229,255,.08); }

/* ───────── Cards ───────── */
.card { border-radius: 16px; border: 1px solid var(--line); }
.glass { background: var(--surface); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 20px 50px rgba(0,0,0,.35); }

/* ───────── Hero ───────── */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 3rem; align-items: center; padding-top: 4.5rem; padding-bottom: 3rem; }
.pill { display: inline-flex; align-items: center; gap: .55rem; font-size: .8rem; font-weight: 500; color: var(--cyan); background: rgba(0,229,255,.09); border: 1px solid var(--line-strong); padding: .35rem .9rem; border-radius: 999px; margin-bottom: 1.4rem; }
.pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .35; transform: scale(.8); } }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); line-height: 1.1; font-weight: 800; letter-spacing: -.03em; margin-bottom: 1.2rem; }
.grad { background: linear-gradient(120deg, var(--cyan), var(--green)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.lead { font-size: 1.12rem; color: var(--muted); max-width: 560px; margin-bottom: 1.8rem; }
.lead strong { color: var(--text); }
.cta-row { display: flex; flex-wrap: wrap; gap: .9rem; margin-bottom: 2.2rem; }
.facts { list-style: none; display: flex; gap: 2.2rem; padding-top: 1.4rem; border-top: 1px solid var(--line); flex-wrap: wrap; }
.facts b { display: block; font: 800 1.9rem var(--mono); background: linear-gradient(135deg, #fff, var(--cyan)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.2; }
.facts span { font-size: .8rem; color: var(--dim); }
.hero-code { overflow: hidden; }
.page-hero { text-align: center; padding-top: 4rem; padding-bottom: 1rem; }
.page-hero .lead { margin-left: auto; margin-right: auto; }

/* ───────── Code & AST Viewer ───────── */
.win-bar { display: flex; align-items: center; gap: 6px; padding: .7rem 1rem; background: rgba(255,255,255,.03); border-bottom: 1px solid var(--line); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.r { background: #ff5f57; } .dot.y { background: #febc2e; } .dot.g { background: #28c840; }
.fname { margin-left: .8rem; font: .76rem var(--mono); color: var(--muted); }

.viewer { overflow: hidden; }
.tabs-header-row { display: flex; justify-content: space-between; align-items: center; background: rgba(255,255,255,.02); border-bottom: 1px solid var(--line); padding: .4rem .8rem 0; flex-wrap: wrap; gap: .8rem; }
.tabs { display: flex; gap: .3rem; overflow-x: auto; flex-grow: 1; }
.tab { background: none; border: 0; border-bottom: 2px solid transparent; color: var(--muted); font: 600 .9rem var(--font); padding: .6rem 1rem; cursor: pointer; white-space: nowrap; transition: color .2s, border-color .2s; }
.tab:hover { color: var(--text); }
.tab.active { color: var(--cyan); border-bottom-color: var(--cyan); }

.view-mode-toggle { display: inline-flex; background: rgba(0,0,0,.45); border: 1px solid var(--line); border-radius: 8px; padding: 2px; }
.mode-btn { background: none; border: 0; color: var(--muted); font: 600 .78rem var(--mono); padding: .35rem .75rem; border-radius: 6px; cursor: pointer; transition: all .2s; }
.mode-btn.active { background: var(--cyan); color: #020b12; box-shadow: 0 0 12px rgba(0,229,255,.4); }

.viewer-meta { display: flex; justify-content: space-between; gap: 1rem; align-items: center; padding: 1.2rem 1.4rem 1rem; }
.viewer-meta p { color: var(--muted); font-size: .92rem; }
.file-bar { display: flex; justify-content: space-between; padding: .5rem 1.4rem; background: rgba(255,255,255,.03); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font: .76rem var(--mono); color: var(--cyan); }

pre.code { background: var(--code-bg); padding: 1.2rem 1.3rem; overflow-x: auto; font-family: var(--mono); font-size: .82rem; line-height: 1.7; tab-size: 4; }
pre.code code { background: none; padding: 0; color: #cbd5e1; font-size: inherit; display: block; }
.code-big { max-height: 560px; overflow: auto; border-radius: 0 0 16px 16px; }

/* Syntax Tokens */
.tk-k { color: #ff79c6; font-weight: 600; }
.tk-s { color: #a5f3a0; }
.tk-n { color: #fbbf24; }
.tk-c { color: #5d6b85; font-style: italic; }
.tk-f { color: #38bdf8; }
.tk-m { color: var(--cyan); }

/* AST Tree Tokens */
.ast-root { color: var(--cyan); font-weight: 700; text-shadow: 0 0 10px rgba(0,229,255,.5); }
.ast-file { color: #fbbf24; }
.ast-count { color: var(--green); font-weight: 600; }
.ast-node { color: #a78bfa; font-weight: 600; }
.ast-kw { color: #38bdf8; font-weight: 600; }
.ast-str { color: #a5f3a0; }
.ast-sub { color: #94a3b8; }
.ast-call { color: #f472b6; font-weight: 600; }
.ast-fn { color: var(--cyan); }
.ast-meta { color: #5d6b85; font-style: italic; }
.ast-success { color: var(--green); font-weight: 700; text-shadow: 0 0 8px rgba(0,255,136,.4); }

/* ───────── Pluton-LLM Flagship Section ───────── */
.llm-hero-card {
  background: linear-gradient(135deg, rgba(16, 22, 36, 0.85), rgba(28, 18, 48, 0.75));
  border: 1px solid rgba(168, 85, 247, 0.35);
  box-shadow: 0 20px 60px rgba(168, 85, 247, 0.15);
  padding: 3rem 2.5rem;
}
.llm-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: .8rem; }
.quote-box, .grant-quote-box {
  background: rgba(168, 85, 247, 0.1);
  border-left: 3px solid var(--purple);
  padding: 1.4rem 1.6rem;
  border-radius: 0 12px 12px 0;
  margin-top: 2rem;
}
.quote-tag, .grant-tag {
  font: 700 .78rem var(--mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #c084fc;
  margin-bottom: .5rem;
}
.quote-box p, .grant-quote-box p { color: var(--text); font-size: .95rem; line-height: 1.6; margin: 0; }

/* ───────── CLI Toolchain ───────── */
.cli-box { padding: 1.8rem; }
.cli-cmd { margin-bottom: 1rem; }
.cli-cmd code { font-size: .88rem; color: var(--green); background: rgba(0,255,136,.08); border: 1px solid rgba(0,255,136,.25); padding: .4rem .7rem; display: block; border-radius: 8px; }
.cli-box h4 { font-size: 1.1rem; margin-bottom: .5rem; }
.cli-box p { color: var(--muted); font-size: .92rem; }

/* ───────── Sections General ───────── */
.section { padding-top: 4rem; padding-bottom: 1rem; }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 2.4rem; }
.eyebrow { display: inline-block; font: 600 .74rem var(--mono); letter-spacing: .12em; color: var(--cyan); margin-bottom: .6rem; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.3rem); font-weight: 800; letter-spacing: -.02em; line-height: 1.2; margin-bottom: .8rem; }
h3 { font-size: 1.12rem; font-weight: 700; margin-bottom: .5rem; }
.sec-head p { color: var(--muted); }

/* ───────── Grids & Feature Cards ───────── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.feat { padding: 1.8rem; transition: transform .3s var(--ease), border-color .3s; }
.feat:hover, .mini:hover, .cli-box:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.feat p { color: var(--muted); font-size: .93rem; }
.ico { width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center; font-size: 1.2rem; margin-bottom: 1rem; }
.ico.c1 { background: rgba(0,229,255,.12); color: var(--cyan); border: 1px solid var(--line-strong); }
.ico.c2 { background: rgba(0,255,136,.1); color: var(--green); border: 1px solid rgba(0,255,136,.35); }
.ico.c3 { background: rgba(255,51,102,.1); color: var(--pink); border: 1px solid rgba(255,51,102,.35); }

/* ───────── Prose & Callout ───────── */
.callout { padding: 2.4rem; border-color: var(--line-strong); }
.callout p { color: var(--muted); margin-bottom: 1rem; max-width: 760px; }
.prose { padding: 2.4rem; }
.prose h1 { font-size: 2.1rem; margin-bottom: .4rem; }
.prose h2 { font-size: 1.3rem; margin: 1.8rem 0 .6rem; }
.prose h3 { margin-top: 1.4rem; }
.prose p { color: var(--muted); margin-bottom: 1rem; }
.prose p strong, .prose li b, .prose li strong { color: var(--text); }
.checks { list-style: none; margin: 1rem 0; }
.checks li { position: relative; padding-left: 1.7rem; margin-bottom: .8rem; color: var(--muted); }
.checks li::before { content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700; }
.note { font-size: .88rem; border-left: 3px solid var(--cyan); padding-left: 1rem; }
.callout-box { background: rgba(255,255,255,.03); border: 1px solid var(--line); border-radius: 12px; padding: 1.6rem; margin: 1.6rem 0; }
.callout-box h4 { font-size: 1rem; color: var(--cyan); margin-bottom: .8rem; }

/* ───────── Table ───────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 640px; }
th, td { text-align: left; padding: .85rem 1.2rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font: 600 .74rem var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--cyan); background: rgba(0,229,255,.05); }
td { color: var(--muted); }
td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }

/* ───────── Timeline ───────── */
.timeline { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
.tl-item { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 1.5rem; }
.tl-item p { color: var(--muted); font-size: .92rem; }
.badge { display: inline-block; font: 600 .7rem var(--mono); text-transform: uppercase; letter-spacing: .08em; padding: .22rem .65rem; border-radius: 999px; margin-bottom: .8rem; }
.badge.ok { color: var(--green); background: rgba(0,255,136,.1); border: 1px solid rgba(0,255,136,.35); }
.badge.active-tag { color: var(--cyan); background: rgba(0,229,255,.1); border: 1px solid rgba(0,229,255,.35); }
.badge.plan { color: #fbbf24; background: rgba(251,191,36,.1); border: 1px solid rgba(251,191,36,.35); }

/* ───────── Contact ───────── */
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin: 1.2rem 0; }
.contact-card { background: rgba(255,255,255,.03); border: 1px solid var(--line); border-radius: 12px; padding: 1.1rem 1.2rem; display: flex; flex-direction: column; gap: .2rem; }
.contact-card .muted { font: .72rem var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.contact-card a { font-weight: 600; word-break: break-all; }

/* ───────── Footer ───────── */
.site-footer { margin-top: 5rem; background: rgba(3,5,10,.85); border-top: 1px solid var(--line); padding-top: 3rem; }
.foot { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.2rem; }
.foot-brand p { color: var(--muted); font-size: .9rem; margin: .8rem 0 0; max-width: 340px; }
.foot-col h4 { font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--text); margin-bottom: .9rem; }
.foot-col a { display: block; color: var(--muted); font-size: .9rem; margin-bottom: .55rem; }
.foot-col a:hover { color: var(--cyan); }
.copy { border-top: 1px solid var(--line); padding-top: 1.3rem; padding-bottom: 1.8rem; font-size: .8rem; color: var(--dim); }

/* ───────── Cookie banner ───────── */
.cookie { position: fixed; left: 50%; bottom: 1.2rem; transform: translateX(-50%); width: min(920px, calc(100% - 2rem)); z-index: 100; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 1.1rem 1.4rem; background: rgba(10,15,26,.94); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border: 1px solid var(--line-strong); border-radius: 14px; box-shadow: 0 20px 60px rgba(0,0,0,.6); animation: rise .5s var(--ease); }
.cookie[hidden] { display: none; }
.cookie p { color: var(--muted); font-size: .85rem; margin-top: .2rem; }
.cookie-actions { display: flex; gap: .6rem; flex-shrink: 0; }
@keyframes rise { from { opacity: 0; transform: translate(-50%, 20px); } }

/* ───────── Responsive ───────── */
@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; padding-top: 3rem; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .burger { display: flex; }
  .nav-cta { display: none; }
  .links { position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; gap: 0; margin: 0; background: rgba(7,10,18,.97); border-bottom: 1px solid var(--line); padding: .5rem 1.5rem 1rem; display: none; }
  .links.open { display: flex; }
  .links a { padding: .8rem 0; border-bottom: 1px solid var(--line); }
  .links a.active::after { display: none; }
  .tabs-header-row { flex-direction: column; align-items: flex-start; }
  .viewer-meta { flex-direction: column; align-items: flex-start; }
  .contact-grid { grid-template-columns: 1fr; }
  .foot { grid-template-columns: 1fr; gap: 1.8rem; }
  .cookie { flex-direction: column; align-items: stretch; }
  .cookie-actions { justify-content: flex-end; }
  .prose, .callout { padding: 1.6rem; }
}
@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .facts { gap: 1.4rem; }
}