:root {
  --bg: #07101f;
  --bg-soft: #0b172b;
  --surface: #101e34;
  --surface-2: #14263f;
  --line: #28415e;
  --text: #edf5ff;
  --muted: #a8bbcf;
  --cyan: #62e5ff;
  --violet: #ad8cff;
  --amber: #ffc46b;
  --green: #86e3bb;
  --danger: #ff8b8b;
  --shadow: 0 18px 50px rgba(0, 0, 0, .24);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(circle at 85% -10%, rgba(98, 229, 255, .12), transparent 31rem), var(--bg); color: var(--text); font-size: 16px; line-height: 1.6; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.shell { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(40, 65, 94, .7); background: rgba(7, 16, 31, .88); backdrop-filter: blur(16px); }
.header-inner { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 800; letter-spacing: -.025em; white-space: nowrap; }
.brand-mark { width: 32px; height: 32px; border: 1px solid var(--cyan); border-radius: 9px; display: grid; place-items: center; color: var(--bg); background: var(--cyan); box-shadow: 0 0 24px rgba(98, 229, 255, .24); }
.brand-mark span { font-size: 17px; font-weight: 900; }
.nav { display: flex; align-items: center; justify-content: flex-end; gap: 4px; }
.nav a { padding: 9px 11px; border-radius: 9px; color: var(--muted); text-decoration: none; font-size: .92rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); background: rgba(98, 229, 255, .1); }
.menu-toggle { display: none; border: 1px solid var(--line); background: transparent; color: var(--text); border-radius: 8px; padding: 8px 10px; font-size: 1.1rem; }
.eyebrow { color: var(--cyan); font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.hero { padding: 92px 0 68px; position: relative; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(380px, .82fr); gap: 54px; align-items: center; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.045em; margin: 0 0 16px; }
h1 { max-width: 720px; font-size: clamp(3rem, 8vw, 6.2rem); }
.hero h1 { max-width: 690px; font-size: clamp(2.8rem, 6vw, 4.9rem); }
h2 { font-size: clamp(2rem, 4vw, 3.3rem); }
h3 { font-size: 1.4rem; }
p { margin: 0 0 18px; color: var(--muted); }
.lead { max-width: 650px; font-size: 1.18rem; line-height: 1.7; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--text); text-decoration: none; font-weight: 750; cursor: pointer; }
.button:hover { transform: translateY(-1px); border-color: var(--cyan); }
.button.primary { background: var(--cyan); border-color: var(--cyan); color: #06111e; }
.button.ghost { background: transparent; }
.hero-art { min-height: 410px; border: 1px solid var(--line); border-radius: 24px; background: linear-gradient(145deg, rgba(20, 38, 63, .95), rgba(9, 20, 38, .94)); box-shadow: var(--shadow); padding: 22px; position: relative; overflow: hidden; }
.hero-art::after { content: ""; position: absolute; inset: 35% -20% -30%; background: radial-gradient(circle, rgba(173, 140, 255, .22), transparent 60%); pointer-events: none; }
.art-label { color: var(--muted); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
.system-map { min-height: 330px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-content: center; position: relative; }
.map-node { position: relative; z-index: 1; padding: 18px; border: 1px solid var(--line); border-radius: 14px; background: rgba(16, 30, 52, .88); }
.map-node strong { display: block; margin-bottom: 3px; }
.map-node small { color: var(--muted); }
.map-node.center { grid-column: 1 / -1; border-color: var(--cyan); background: rgba(98, 229, 255, .12); text-align: center; }
.map-line { position: absolute; left: 12%; right: 12%; top: 50%; border-top: 1px dashed rgba(98, 229, 255, .45); }
.section { padding: 76px 0; border-top: 1px solid rgba(40, 65, 94, .55); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 30px; }
.section-heading p { max-width: 510px; margin-bottom: 0; }
.version-copy { max-width: 560px; }
.version-copy p:last-child { margin-bottom: 0; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(145deg, rgba(16, 30, 52, .94), rgba(10, 21, 38, .9)); padding: 22px; }
.card:hover { border-color: rgba(98, 229, 255, .55); }
.card p:last-child { margin-bottom: 0; }
.build-card ul { margin: 0 0 18px; padding-left: 1.2rem; color: var(--muted); }
.build-card li { margin: 8px 0; }
.code-example { overflow-x: auto; margin: 24px 0; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: #06111e; color: var(--green); font: .88rem/1.6 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; white-space: pre-wrap; }
.prompt-card { margin: 24px 0; padding: 22px; border: 1px solid rgba(173, 140, 255, .42); border-radius: 16px; background: rgba(173, 140, 255, .07); }
.prompt-card .code-example { margin-bottom: 0; }
.source-note { font-size: .93rem; }
.source-note a { color: var(--cyan); font-weight: 700; }
.card-kicker { color: var(--amber); font-size: .77rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 12px; }
.number { color: var(--cyan); font-size: 2rem; font-weight: 800; margin-bottom: 10px; }
.tag { display: inline-flex; align-items: center; padding: 5px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .78rem; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; background: rgba(16, 30, 52, .78); }
.model-table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
.benchmark-table { min-width: 900px; }
.model-table th, .model-table td { padding: 15px 16px; border-bottom: 1px solid rgba(40, 65, 94, .7); vertical-align: top; }
.model-table thead th { color: var(--cyan); font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; }
.model-table tbody th { color: var(--text); font-size: .96rem; }
.model-table tbody th a { color: var(--cyan); text-decoration: none; }
.model-table small { color: var(--muted); font-size: .78rem; font-weight: 500; }
.model-table td { color: var(--muted); }
.model-table tr:last-child th, .model-table tr:last-child td { border-bottom: 0; }
.stack { display: grid; gap: 10px; }
.stack-row { display: grid; grid-template-columns: 160px 1fr; gap: 18px; align-items: center; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: rgba(16, 30, 52, .7); }
.stack-row b { color: var(--cyan); }
.stack-row span { color: var(--muted); }
.step-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 28px 0; }
.step-card { padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(145deg, rgba(16, 30, 52, .94), rgba(10, 21, 38, .9)); }
.step-card .number { margin-bottom: 8px; }
.step-card strong { color: var(--cyan); }
.step-card p { margin-bottom: 10px; }
.page-hero { padding: 74px 0 54px; max-width: 800px; }
.page-hero h1 { font-size: clamp(2.8rem, 6vw, 5.2rem); }
.content-layout { display: grid; grid-template-columns: 1fr 320px; gap: 34px; align-items: start; }
.side-card { position: sticky; top: 98px; }
.side-card a { display: block; padding: 8px 0; color: var(--muted); text-decoration: none; border-bottom: 1px solid rgba(40, 65, 94, .5); }
.side-card a:hover { color: var(--cyan); }
.concepts-content { max-width: 920px; margin: 0 auto; }
.concept-nav { display: flex; gap: 10px; overflow-x: auto; padding: 5px 0 15px; margin-bottom: 36px; border-bottom: 1px solid var(--line); scrollbar-width: thin; }
.concept-nav a { flex: 0 0 auto; padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); text-decoration: none; background: rgba(16, 30, 52, .72); }
.concept-nav a:hover, .concept-nav a:focus-visible { color: var(--text); border-color: var(--cyan); background: rgba(98, 229, 255, .1); }
.prose h2 { margin-top: 50px; }
.prose h2 { scroll-margin-top: 100px; }
.prose h3 { margin-top: 28px; }
.prose ul, .prose ol { color: var(--muted); padding-left: 1.3rem; }
.prose li { margin: 8px 0; }
.callout { margin: 24px 0; padding: 20px; border-left: 3px solid var(--violet); background: rgba(173, 140, 255, .1); border-radius: 0 12px 12px 0; }
.canvas-prompt, .canvas-callout { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 24px; padding: 24px; border: 1px solid rgba(98, 229, 255, .38); border-radius: 16px; background: linear-gradient(120deg, rgba(98, 229, 255, .1), rgba(16, 30, 52, .72)); }
.canvas-prompt h3, .canvas-callout h2 { margin-bottom: 8px; }
.canvas-prompt p, .canvas-callout p { margin-bottom: 0; }
.canvas-callout { margin: 0; }
.canvas-callout a:not(.button) { color: var(--cyan); font-weight: 750; }
.schema { display: grid; gap: 14px; margin: 28px 0; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: rgba(16, 30, 52, .72); }
.schema-title { color: var(--muted); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.schema-flow { display: grid; grid-template-columns: repeat(5, minmax(130px, 1fr)); gap: 10px; align-items: stretch; }
.schema-step { position: relative; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-soft); }
.schema-step strong { display: block; color: var(--text); margin-bottom: 4px; }
.schema-step span { color: var(--muted); font-size: .87rem; line-height: 1.45; }
.schema-step:not(:last-child)::after { content: "→"; position: absolute; right: -16px; top: 50%; z-index: 2; transform: translateY(-50%); color: var(--cyan); font-weight: 800; }
.schema-step.accent { border-color: var(--cyan); background: rgba(98, 229, 255, .1); }
.vendor-card { display: flex; flex-direction: column; gap: 12px; min-height: 225px; }
.vendor-card .vendor-meta { display: flex; justify-content: space-between; gap: 8px; color: var(--muted); font-size: .84rem; }
.vendor-card a { color: var(--cyan); font-weight: 700; text-decoration: none; margin-top: auto; }
.faq-list { display: grid; gap: 10px; }
details { border: 1px solid var(--line); border-radius: 12px; background: rgba(16, 30, 52, .82); }
summary { cursor: pointer; padding: 18px 20px; font-weight: 750; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; float: right; color: var(--cyan); font-size: 1.25rem; }
details[open] summary::after { content: "–"; }
details p { padding: 0 20px 18px; margin: 0; }
.quiz-shell { max-width: 760px; }
.quiz-progress { height: 7px; background: var(--surface-2); border-radius: 999px; overflow: hidden; margin: 20px 0 30px; }
.quiz-progress span { display: block; height: 100%; width: 20%; background: linear-gradient(90deg, var(--cyan), var(--violet)); transition: width .2s ease; }
.question { margin-bottom: 24px; }
.question h3 { font-size: 1.7rem; }
.option-list { display: grid; gap: 10px; }
.option { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border: 1px solid var(--line); border-radius: 11px; cursor: pointer; color: var(--muted); }
.option:hover, .option:has(input:checked) { border-color: var(--cyan); background: rgba(98, 229, 255, .08); color: var(--text); }
.option input { margin-top: 5px; accent-color: var(--cyan); }
.result { display: none; margin-top: 24px; padding: 24px; border: 1px solid var(--cyan); border-radius: 14px; background: rgba(98, 229, 255, .08); }
.result.show { display: block; }
.result h3 { color: var(--cyan); }
.interview-note { margin-bottom: 24px; padding: 14px 16px; border: 1px solid var(--amber); border-radius: 11px; background: rgba(255, 196, 107, .09); color: var(--muted); }
.interview { display: grid; gap: 14px; max-width: 900px; margin: 0 auto; }
.qa-list { display: grid; gap: 16px; max-width: 900px; margin: 0 auto; }
.qa-card { padding: 24px 26px; border: 1px solid var(--line); border-radius: 15px; background: linear-gradient(145deg, rgba(16, 30, 52, .9), rgba(10, 21, 38, .82)); }
.qa-card p:first-child { color: var(--text); font-size: 1.08rem; line-height: 1.45; }
.qa-card p:first-child strong { color: var(--cyan); }
.qa-card p:last-child { margin-bottom: 0; }
.interview-turn { display: grid; grid-template-columns: 150px 1fr; gap: 22px; padding: 22px; border: 1px solid var(--line); border-radius: 15px; background: rgba(16, 30, 52, .82); }
.interview-turn.architect, .interview-turn.executive { background: rgba(98, 229, 255, .07); border-color: rgba(98, 229, 255, .38); }
.speaker { color: var(--cyan); font-size: .8rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.speaker span { display: block; margin-top: 5px; color: var(--muted); font-size: .78rem; font-weight: 500; letter-spacing: 0; text-transform: none; }
.interview-turn p:last-child { margin-bottom: 0; }
.footer { margin-top: 70px; padding: 34px 0 44px; border-top: 1px solid var(--line); color: var(--muted); }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer small { color: var(--muted); }
.footer a { color: var(--muted); text-decoration: none; }
.footer a:hover { color: var(--cyan); }
.reveal { animation: rise .55s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@media (max-width: 860px) {
  .hero-grid, .content-layout { grid-template-columns: 1fr; }
  .hero-art { min-height: 340px; }
  .side-card { position: static; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .nav { display: none; position: absolute; top: 74px; left: 20px; right: 20px; padding: 10px; flex-direction: column; align-items: stretch; border: 1px solid var(--line); border-radius: 12px; background: #0b172b; box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .menu-toggle { display: inline-flex; }
  .schema-flow { grid-template-columns: 1fr; }
  .schema-step:not(:last-child)::after { right: auto; left: 50%; top: auto; bottom: -18px; transform: translateX(-50%) rotate(90deg); }
  .canvas-prompt, .canvas-callout { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 620px) {
  .shell { width: min(100% - 28px, 1160px); }
  .hero { padding-top: 58px; }
  .section { padding: 56px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .step-list { grid-template-columns: 1fr; }
  .stack-row { grid-template-columns: 1fr; gap: 7px; }
  .interview-turn { grid-template-columns: 1fr; gap: 8px; }
  h1 { font-size: clamp(2.8rem, 15vw, 4.3rem); }
}