@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Plus+Jakarta+Sans:wght@500;600;700&display=swap');

:root { --ink:var(--ozb-on-canvas); --muted:var(--ozb-on-surface-variant); --line:var(--ozb-outline-variant); --paper:var(--ozb-canvas);
  /* Editorial: a softened outline so the neutral "zero" state stays visible on white. */
  --zero-edge:color-mix(in srgb, var(--ozb-outline) 40%, transparent); }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:2rem; }
body { margin:0; color:var(--ink); background:var(--paper); font:400 1rem/1.65 var(--ozb-font-ui); }
a { color:inherit; text-decoration:none; }
button,input { font:inherit; }
button,a,summary,input { -webkit-tap-highlight-color:transparent; }
:focus-visible { outline:2px solid var(--ozb-focus); outline-offset:5px; }
::selection { color:var(--ink); background:var(--ozb-primary-container); }
.wrap { width:min(1160px,calc(100% - 96px)); margin-inline:auto; }
.skip-link { position:fixed; top:-100px; left:1rem; padding:1rem; background:var(--ozb-surface); z-index:10; }
.skip-link:focus { top:1rem; }

/* Identity belongs to a continuous capsule with an overlapping neutral center. */
.brand-mark { display:inline-block; position:relative; width:60px; height:26px; flex:none; background:var(--ozb-surface-variant); border:1px solid var(--line); border-radius:var(--ozb-radius-switch); }
.brand-mark i { position:absolute; top:1px; width:22px; height:22px; border-radius:50%; }
.brand-mark i:first-child { left:1px; background:var(--ozb-brand-mint); }
.brand-mark i:nth-child(2) { left:18px; z-index:2; background:var(--ozb-brand-sand); box-shadow:0 0 0 1px var(--zero-edge); }
.brand-mark i:last-child { right:1px; background:var(--ozb-brand-coral); }
.wordmark { display:inline-flex; align-items:center; gap:12px; font:700 1.25rem/1.3 var(--ozb-font-display); letter-spacing:-.02em; }
.wordmark .zero { color:var(--ozb-brand-coral); }
.header { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:24px; min-height:96px; padding-block:20px; border-bottom:1px solid var(--line); }
nav { display:flex; align-items:center; flex-wrap:wrap; gap:24px; font-size:.9375rem; font-weight:500; line-height:1.4; }
nav a { border-radius:8px; padding:8px 4px; }
nav a:hover { background:var(--ozb-surface-cool); }
.nav-install { display:inline-flex; align-items:center; gap:14px; }
.nav-install > span { font-size:1.25rem; }

/* Reading remains neutral; the compact identity carries the cool/warm contrast. */
.hero { padding-top:72px; }
.hero-layout { display:grid; grid-template-columns:minmax(0,1.7fr) minmax(240px,1fr); align-items:center; gap:64px; padding-bottom:64px; }
.eyebrow,.category,.demo-kicker,.strip-caption,.step-label,legend,.command-header > span { text-transform:uppercase; }
.eyebrow { margin:0; font-size:.8125rem; line-height:1.5; font-weight:500; letter-spacing:.09em; text-wrap:balance; }
h1,h2,h3 { font-family:var(--ozb-font-display); font-optical-sizing:auto; color:var(--ink); overflow-wrap:break-word; }
h1 { font-size:clamp(2.5rem,1.75rem + 2.5vw,4rem); line-height:1.12; letter-spacing:-.025em; font-weight:600; margin:24px 0; text-wrap:balance; }
.hero-description { max-width:48ch; margin:0 0 28px; font-size:1.0625rem; line-height:1.7; }
.button { display:inline-flex; align-items:center; justify-content:space-between; gap:28px; min-height:48px; padding:13px 20px; border-radius:var(--ozb-radius-button); font-size:.9375rem; line-height:1.4; font-weight:500; }
.button > span { font-size:1.25rem; }
.hero-actions { display:flex; align-items:center; flex-wrap:wrap; gap:16px 28px; }
.text-link { font-size:.9375rem; line-height:1.4; font-weight:500; text-decoration:underline; text-decoration-thickness:1px; text-underline-offset:5px; text-decoration-color:var(--ozb-outline); }
.text-link:hover { text-decoration-color:var(--ink); }
.primary { background:var(--ozb-brand-gradient); color:var(--ink); border:1px solid var(--line); transition:border-color 160ms ease; }
.primary:hover { border-color:var(--ink); }
.primary:active { box-shadow:inset 0 0 0 1px var(--ink); }
.identity-composition { text-align:center; justify-self:center; width:min(100%,280px); }
.identity-switch { position:relative; width:260px; max-width:100%; height:100px; margin-inline:auto; border:1px solid var(--line); border-radius:var(--ozb-radius-switch); background:var(--ozb-surface); }
.identity-switch > span { position:absolute; top:5px; width:88px; height:88px; border-radius:50%; }
.identity-one { left:5px; background:var(--ozb-cool-gradient); }
.identity-zero { left:calc(50% - 44px); z-index:2; background:var(--ozb-brand-sand); box-shadow:0 0 0 1px var(--zero-edge), 0 0 0 4px var(--ozb-surface); }
.identity-both { right:5px; background:var(--ozb-warm-gradient); }
.identity-caption { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin:18px 0 0; font:600 1.25rem/1.3 var(--ozb-font-display); }
.identity-composition > p:last-child { margin:16px 0 0; font-size:.875rem; line-height:1.6; color:var(--muted); }
.strip-caption { display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; padding-block:20px; border-top:1px solid var(--line); font-size:.75rem; line-height:1.5; font-weight:500; letter-spacing:.06em; }

/* Larger aligned regions, separated by rules, carry the content hierarchy. */
.why { padding-block:80px 24px; }
/* The argument paragraph is prose: it sits under its heading at a reading measure, not in a narrow third column. */
.why .section-heading { grid-template-columns:1fr 3.1fr; row-gap:20px; }
.why .section-heading > p:last-child { grid-column:2; max-width:62ch; }
.principles { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:32px; margin:0; padding:28px 0 0; list-style:none; border-top:1px solid var(--line); }
.principles h3 { margin:0 0 10px; font-size:1.25rem; line-height:1.3; }
.principles p { margin:0; max-width:40ch; }
.skills { padding-block:80px; }
.section-heading { display:grid; grid-template-columns:1fr 1.7fr 1.4fr; gap:32px; align-items:start; margin-bottom:44px; }
h2 { font-size:clamp(1.875rem,1.4rem + 1.2vw,2.75rem); line-height:1.2; letter-spacing:-.02em; font-weight:600; margin:0; text-wrap:balance; }
.section-heading > p:last-child { margin:0; max-width:46ch; text-wrap:pretty; }
.skill { display:grid; grid-template-columns:36px minmax(180px,1fr) minmax(0,1.4fr) minmax(150px,.8fr); gap:28px; align-items:start; padding-block:28px; border-top:1px solid var(--line); }
.skill:last-child { border-bottom:1px solid var(--line); }
.number,.category { color:var(--muted); font-size:.8125rem; line-height:1.5; font-weight:500; }
.number { padding-top:3px; font-variant-numeric:tabular-nums; }
.category { letter-spacing:.07em; }
h3 { font-size:1.375rem; line-height:1.3; letter-spacing:-.01em; font-weight:600; margin:6px 0 0; }
.skill > p { margin:0; color:var(--ink); }
summary { display:flex; justify-content:space-between; align-items:baseline; gap:16px; cursor:pointer; font-size:.9375rem; line-height:1.5; font-weight:500; list-style:none; }
summary::-webkit-details-marker { display:none; }
summary::after { content:'+'; font-size:1.25rem; line-height:1; flex-shrink:0; }
details[open] summary::after { content:'−'; }
details p { margin:12px 0 0; color:var(--ink); }
.skill details p { font-size:.9375rem; line-height:1.65; }
.made { background:var(--ozb-surface-variant); border-block:1px solid var(--line); padding-block:72px; margin-bottom:80px; }
.made-grid { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.25fr); gap:64px; align-items:start; }
.made-grid > div > p:not(.eyebrow) { margin:20px 0 0; max-width:36ch; }
.beliefs { margin:28px 0 0; padding:0; list-style:none; font-size:1.125rem; line-height:1.5; }
.beliefs li { padding-block:6px; }
.made h2 { margin-top:20px; }
.made-steps { margin:0; padding:0; list-style:none; }
.made-steps li { display:grid; grid-template-columns:36px minmax(0,1fr); gap:20px; padding-block:22px; border-top:1px solid var(--line); }
.made-steps li:last-child { border-bottom:1px solid var(--line); }
.made-steps h3 { margin:0 0 6px; font-size:1.125rem; }
.made-steps p { margin:0; }
.demos { padding-bottom:80px; }
.demo-heading { display:grid; grid-template-columns:1fr 3.1fr; gap:32px; margin-bottom:36px; }
.demo-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); border-block:1px solid var(--line); }
.demo { display:flex; flex-direction:column; min-width:0; padding:32px 36px 32px 0; background:transparent; border-radius:0; }
.demo + .demo { border-left:1px solid var(--line); padding-inline:36px 0; }
.demo-kicker { font-size:.8125rem; line-height:1.5; letter-spacing:.06em; font-weight:500; color:var(--muted); }
.palette { display:flex; align-items:center; height:88px; margin-block:24px; }
.palette i { flex:1; height:68px; border-radius:14px; background:var(--ozb-brand-mint); }
.palette i { box-shadow:0 0 0 3px var(--ozb-canvas); }
.palette i + i { margin-left:-6px; }
.palette i:nth-child(2) { background:var(--ozb-brand-sky); }
.palette i:nth-child(3) { background:var(--ozb-brand-sand); }
.palette i:nth-child(4) { background:var(--ozb-brand-peach); }
.palette i:nth-child(5) { background:var(--ozb-brand-coral); }
.demo h3 { font-size:1.75rem; line-height:1.25; margin-top:0; text-wrap:balance; }
.demo > p { color:var(--ink); max-width:42ch; }
.demo-link { display:flex; align-items:center; justify-content:space-between; padding-top:20px; margin-top:auto; font-size:.9375rem; font-weight:500; }
.demo-link b { font-size:1.25rem; font-weight:400; }
.demo:hover .demo-link { text-decoration:underline; text-underline-offset:5px; }
.type-specimen { display:flex; align-items:baseline; flex-wrap:wrap; gap:28px; min-height:88px; margin-block:24px; font:600 3.75rem/1.2 var(--ozb-font-display); }
.type-specimen span { font:500 3.5rem/1.2 var(--ozb-font-ui); }

/* The installation is a functional neutral region, not gradient wallpaper. */
.install { background:var(--ozb-surface-variant); color:var(--ink); padding-block:72px; border-block:1px solid var(--line); }
.install-grid { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.25fr); gap:64px; }
.install .eyebrow { margin-bottom:24px; }
.install h2 { font-size:clamp(2.25rem,1.7rem + 1.5vw,3.5rem); line-height:1.16; }
.install h2 span { position:relative; }
.install h2 span::after { content:''; display:block; width:54px; height:4px; background:var(--ozb-brand-mint); margin-top:18px; border-radius:2px; }
.install-intro > p { max-width:38ch; }
.download { color:var(--ink); background:var(--ozb-surface); border:1px solid var(--line); margin-top:12px; }
.download:hover { border-color:var(--ink); }
.requirement { font-size:.875rem; color:var(--muted); }
.install-panel { padding-top:4px; min-width:0; }
.step-label,legend { color:var(--muted); font-size:.8125rem; line-height:1.5; letter-spacing:.06em; font-weight:500; }
.install-panel > p { margin:0 0 16px; }
fieldset { border:0; margin:28px 0; padding:0; min-width:0; }
legend { padding:0; margin-bottom:12px; }
.agent-options { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); position:relative; isolation:isolate; padding:4px; border:1px solid var(--line); border-radius:var(--ozb-radius-switch); background:var(--ozb-surface); }
.agent-selection { position:absolute; z-index:-1; top:4px; bottom:4px; left:4px; width:calc((100% - 8px) / 3); border:1px solid var(--ozb-outline); border-radius:var(--ozb-radius-switch); background:var(--ozb-primary-container); transition:transform var(--ozb-motion-state) var(--ozb-easing-state); }
.agent-options[data-agent="claude"] .agent-selection { transform:translateX(100%); background:var(--ozb-surface-warm); }
.agent-options[data-agent="both"] .agent-selection { transform:translateX(200%); background:var(--ozb-brand-gradient); }
.agent-options label { position:relative; display:flex; align-items:stretch; min-width:0; cursor:pointer; }
.agent-options input { position:absolute; z-index:2; inset:0; width:100%; height:100%; opacity:0; margin:0; cursor:pointer; }
.agent-options label > span { display:flex; align-items:center; justify-content:center; flex:1; flex-wrap:wrap; gap:8px; min-height:46px; padding:10px 8px; border-radius:var(--ozb-radius-switch); font-size:.9375rem; line-height:1.4; font-weight:500; color:var(--ink); text-align:center; }
.agent-options input:checked + span { text-decoration:underline; text-decoration-thickness:1px; text-underline-offset:4px; }
.agent-options input:focus-visible + span { outline:2px solid var(--ozb-focus); outline-offset:2px; }
.agent-symbol { display:inline-block; width:12px; height:12px; border-radius:50%; flex:none; }
.symbol-cool { background:var(--ozb-brand-mint); }
.symbol-warm { background:var(--ozb-brand-coral); }
.symbol-both { position:relative; width:20px; }
.symbol-both::before,.symbol-both::after { content:''; position:absolute; width:12px; height:12px; border-radius:50%; }
.symbol-both::before { left:0; background:var(--ozb-brand-mint); }
.symbol-both::after { right:0; background:var(--ozb-brand-coral); opacity:.8; border-left:1px solid var(--ozb-surface); }
.command-block { background:var(--ozb-surface); border:1px solid var(--line); border-radius:var(--ozb-radius-card); }
.command-header { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:16px; padding:14px 18px; border-bottom:1px solid var(--line); }
.command-header > span { font-size:.8125rem; line-height:1.5; letter-spacing:.06em; color:var(--muted); }
.command-header button { border:0; border-radius:8px; background:transparent; color:var(--ink); padding:8px; cursor:pointer; font-size:.9375rem; line-height:1.4; font-weight:500; }
.command-header button:hover { background:var(--ozb-surface-cool); }
pre { margin:0; padding:22px 18px; white-space:pre-wrap; overflow-wrap:anywhere; }
code { font-size:.9375rem; font-family:ui-monospace,SFMono-Regular,Consolas,monospace; }
pre code { font-size:.9375rem; line-height:1.6; }
.destination { font-size:.875rem; color:var(--muted); margin-top:16px!important; overflow-wrap:anywhere; }
.install-note { font-size:.875rem; }
#copy-status { font-size:.875rem; min-height:1.5em; }
.faq { display:grid; grid-template-columns:1fr 1.3fr; gap:64px; padding-block:80px; }
.faq h2 { margin-top:20px; }
.faq-list details { padding-block:20px; border-bottom:1px solid var(--line); }
.faq-list details:first-child { border-top:1px solid var(--line); }
.faq-list p { max-width:62ch; }
.faq-list p a { text-decoration:underline; text-underline-offset:4px; }
.footer { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:24px; padding-block:28px; border-top:1px solid var(--line); }
.footer p,.footer-links { font-size:.875rem; }
.footer-links { display:flex; flex-wrap:wrap; gap:24px; }
.footer p { color:var(--muted); }

@media (max-width:900px) {
  .wrap { width:calc(100% - 48px); }
  .hero { padding-top:48px; }
  .hero-layout { gap:32px; grid-template-columns:minmax(0,1.5fr) minmax(210px,1fr); }
  .identity-switch { height:88px; width:232px; }
  .identity-switch > span { width:76px; height:76px; }
  .identity-zero { left:calc(50% - 38px); }
  .section-heading { grid-template-columns:1fr 2fr; }
  .section-heading > p:last-child { grid-column:2; }
  .skill { grid-template-columns:28px 1fr 1.2fr; gap:20px; }
  .skill details { grid-column:3; }
  .install-grid,.faq,.made-grid { gap:32px; }
  .principles { grid-template-columns:1fr; gap:0; }
  .principles li { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,2fr); gap:20px; padding-block:20px; border-bottom:1px solid var(--line); }
  .principles li:last-child { border-bottom:0; }
  .principles h3 { margin:0; }
  nav { gap:16px; }
}
@media (max-width:600px) {
  .wrap { width:calc(100% - 36px); }
  .header { gap:14px; min-height:80px; }
  .wordmark { font-size:1.125rem; gap:8px; }
  .brand-mark { width:52px; height:24px; }
  .brand-mark i { width:20px; height:20px; }
  .brand-mark i:nth-child(2) { left:15px; }
  nav { width:100%; justify-content:space-between; gap:8px; font-size:.875rem; }
  .nav-install { gap:6px; }
  .hero { padding-top:40px; }
  .hero-layout { grid-template-columns:1fr; gap:40px; padding-bottom:40px; }
  h1 { font-size:clamp(2.5rem,2rem + 2vw,3rem); }
  .hero-description { font-size:1rem; }
  .identity-composition { width:240px; }
  .identity-caption { font-size:1.125rem; }
  .strip-caption { font-size:.75rem; }
  .skills { padding-block:56px; }
  .section-heading,.demo-heading { display:block; }
  .section-heading h2,.demo-heading h2 { margin-block:18px; }
  .section-heading { margin-bottom:32px; }
  .skill { grid-template-columns:24px minmax(0,1fr); gap:16px; padding-block:24px; }
  .skill > p,.skill details { grid-column:2; }
  .demos { padding-bottom:56px; }
  .demo-grid { grid-template-columns:1fr; }
  .demo,.demo + .demo { padding:28px 0; border-left:0; }
  .demo + .demo { border-top:1px solid var(--line); }
  .install { padding-block:52px; }
  .install-grid,.faq,.made-grid { grid-template-columns:1fr; gap:32px; }
  .why { padding-block:56px 8px; }
  .principles li { display:block; }
  .principles h3 { margin-bottom:10px; }
  .made { padding-block:52px; margin-bottom:56px; }
  .install h2 { font-size:2.5rem; }
  .command-header { padding:12px; gap:8px; }
  .faq { padding-block:56px; }
  .footer p { order:3; flex-basis:100%; margin:0; }
}
@media (max-width:360px) {
  nav { flex-wrap:wrap; }
  .agent-options label > span { gap:4px; padding-inline:4px; }
}
@media (prefers-reduced-motion:reduce) {
  html { scroll-behavior:auto; }
  .primary,.agent-selection { transition:none; }
}