:root {
  color-scheme: light;
  --paper: #fbfaf6;
  --paper-deep: #f3f0e8;
  --panel: #ffffff;
  --ink: #20242b;
  --navy: #032353;
  --muted: #5d6872;
  --faint: #8c949b;
  --line: #dedfdc;
  --purple: #6531ef;
  --blue: #0b7dfc;
  --cyan: #078b9d;
  --green: #07a96f;
  --yellow: #e8af00;
  --orange: #e66f14;
  --red: #df3852;
  --shadow: 0 18px 48px rgba(3, 35, 83, 0.08);
  --radius: 18px;
  --container: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { background: #c9f1ed; color: var(--navy); }

.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 9px 13px;
  border-radius: 8px;
  background: var(--navy);
  color: #fff;
  font-weight: 750;
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

/* Shared navigation */
.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.96);
  backdrop-filter: blur(14px);
}
.site-header::after {
  position: absolute;
  right: 0;
  bottom: -3px;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--purple) 0 14%, var(--blue) 14% 28%, var(--cyan) 28% 42%, var(--green) 42% 56%, var(--yellow) 56% 70%, var(--orange) 70% 84%, var(--red) 84%);
  content: "";
}
.nav-shell { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 39px;
  height: 39px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
}
.brand-copy { display: grid; line-height: 1.1; }
.brand-name { color: var(--navy); font-size: 1rem; font-weight: 850; letter-spacing: -0.02em; }
.brand-tagline { margin-top: 4px; color: var(--faint); font-size: 0.62rem; font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 3px; }
.nav-links a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border-radius: 9px;
  color: #58636d;
  font-size: 0.82rem;
  font-weight: 720;
}
.nav-links a:hover, .nav-links a:focus-visible, .nav-links a[aria-current="page"] { background: var(--paper-deep); color: var(--navy); outline: none; }
.nav-links .nav-github { margin-left: 4px; border: 1px solid #bfc7ce; color: var(--navy); }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
  color: var(--navy);
  cursor: pointer;
}
.menu-toggle svg { width: 22px; height: 22px; }

/* Landing page */
.hero { padding: clamp(68px, 10vw, 118px) 0 clamp(64px, 9vw, 104px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr); align-items: center; gap: clamp(42px, 9vw, 112px); }
.eyebrow, .section-kicker, .doc-kicker {
  color: var(--purple);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.hero h1 {
  max-width: 720px;
  margin: 17px 0 22px;
  color: var(--navy);
  font-size: clamp(3.1rem, 7vw, 6.2rem);
  font-weight: 860;
  letter-spacing: -0.075em;
  line-height: 0.92;
}
.hero h1 em { color: var(--cyan); font-style: normal; }
.hero-lead { max-width: 630px; margin: 0; color: var(--muted); font-size: clamp(1.03rem, 2vw, 1.24rem); line-height: 1.62; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 29px; }
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 0.84rem;
  font-weight: 820;
  transition: transform 150ms ease, box-shadow 150ms ease;
}
.button:hover, .button:focus-visible { transform: translateY(-2px); outline: none; }
.button-primary { background: var(--navy); color: #fff; box-shadow: 0 10px 28px rgba(3, 35, 83, 0.15); }
.button-quiet { border-color: var(--line); background: #fff; color: var(--navy); }
.hero-facts { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 25px 0 0; padding: 0; color: var(--muted); font-size: 0.76rem; list-style: none; }
.hero-facts li { display: inline-flex; align-items: center; gap: 7px; }
.hero-facts li::before { width: 6px; height: 6px; border-radius: 50%; background: var(--green); content: ""; }
.hero-mark { justify-self: end; text-align: center; }
.mark-frame {
  width: min(32vw, 330px);
  min-width: 250px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  padding: 13%;
  border: 1px solid var(--line);
  border-radius: 32%;
  background: #fff;
  box-shadow: var(--shadow);
}
.hero-mark img { width: 100%; height: 100%; object-fit: contain; }
.hero-mark p { margin: 15px 0 0; color: var(--muted); font-size: 0.78rem; }
.hero-mark strong { color: var(--navy); }
.rainbow-rule { height: 5px; display: grid; grid-template-columns: repeat(7, 1fr); }
.rainbow-rule i:nth-child(1) { background: var(--purple); }
.rainbow-rule i:nth-child(2) { background: var(--blue); }
.rainbow-rule i:nth-child(3) { background: var(--cyan); }
.rainbow-rule i:nth-child(4) { background: var(--green); }
.rainbow-rule i:nth-child(5) { background: var(--yellow); }
.rainbow-rule i:nth-child(6) { background: var(--orange); }
.rainbow-rule i:nth-child(7) { background: var(--red); }

.section { padding: clamp(74px, 9vw, 108px) 0; }
.section-tint { border-block: 1px solid var(--line); background: var(--paper-deep); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 34px; margin-bottom: 34px; }
.section-heading h2 { max-width: 720px; margin: 9px 0 0; color: var(--navy); font-size: clamp(2rem, 4vw, 3.5rem); letter-spacing: -0.06em; line-height: 1.02; }
.section-heading p { max-width: 420px; margin: 0; color: var(--muted); font-size: 0.93rem; }
.compact-heading { align-items: flex-start; }

.quick-grid { display: grid; grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr); align-items: stretch; gap: 22px; }
.step-list { display: grid; gap: 1px; margin: 0; padding: 0; list-style: none; }
.step-list li { display: grid; grid-template-columns: 34px 1fr; gap: 13px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.step-list li:first-child { padding-top: 4px; }
.step-list li > span { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: var(--navy); color: #fff; font-size: 0.7rem; font-weight: 850; }
.step-list strong { color: var(--navy); font-size: 0.96rem; }
.step-list p { margin: 4px 0 0; color: var(--muted); font-size: 0.82rem; }
.step-list code { font-size: 0.9em; }
.code-card { overflow: hidden; border: 1px solid #1e3557; border-radius: var(--radius); background: #0b1d37; box-shadow: var(--shadow); }
.code-card-head { min-height: 46px; display: flex; align-items: center; justify-content: space-between; padding: 0 14px 0 18px; border-bottom: 1px solid rgba(255,255,255,0.12); color: #aebdd0; font-family: "SFMono-Regular", Consolas, monospace; font-size: 0.7rem; }
.copy-button { min-height: 30px; padding: 0 9px; border: 1px solid rgba(255,255,255,0.2); border-radius: 7px; background: transparent; color: #dbe5f0; cursor: pointer; font-size: 0.67rem; }
.copy-button:hover, .copy-button:focus-visible { border-color: #7be3d5; outline: none; }
pre { margin: 0; overflow-x: auto; padding: 22px; color: #edf2f7; font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: 0.79rem; line-height: 1.75; tab-size: 2; }
code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.code-comment { color: #8799ae; }
.code-note { padding: 12px 18px; border-top: 1px solid rgba(255,255,255,0.12); color: #9fb0c4; font-size: 0.72rem; }
.code-note a { color: #9ee7db; font-weight: 750; }
.install-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 18px; }
.install-row code { padding: 7px 9px; border: 1px solid var(--line); border-radius: 7px; background: #fff; color: #435267; font-size: 0.7rem; }
.install-row a { margin-left: auto; color: var(--navy); font-size: 0.76rem; font-weight: 800; }

.mode-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.mode-card { position: relative; overflow: hidden; padding: 27px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.mode-card-rainbow::before { position: absolute; top: 0; right: 0; left: 0; height: 4px; background: linear-gradient(90deg, var(--purple), var(--blue), var(--cyan), var(--green), var(--yellow), var(--orange), var(--red)); content: ""; }
.mode-number { color: var(--purple); font-family: "SFMono-Regular", Consolas, monospace; font-size: 0.7rem; font-weight: 850; }
.mode-card h3 { margin: 30px 0 8px; color: var(--navy); font-size: 1.45rem; letter-spacing: -0.04em; }
.mode-card p { max-width: 490px; margin: 0; color: var(--muted); font-size: 0.88rem; }
.mode-card pre { margin: 22px 0 18px; padding: 13px 14px; border-radius: 9px; background: #f3f1ec; color: #32415a; font-size: 0.72rem; line-height: 1.55; }
.mode-card a { color: var(--navy); font-size: 0.78rem; font-weight: 820; }
.agent-strip { display: grid; grid-template-columns: 0.9fr 1.1fr; align-items: center; gap: 30px; margin-top: 18px; padding: 24px 27px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--navy); }
.agent-strip .section-kicker { color: #91e4d8; }
.agent-strip h3 { margin: 6px 0 0; color: #fff; font-size: 1.2rem; letter-spacing: -0.03em; }
.agent-code { min-width: 0; display: grid; gap: 7px; }
.agent-code code { overflow-x: auto; padding: 9px 11px; border: 1px solid rgba(255,255,255,0.14); border-radius: 7px; background: rgba(255,255,255,0.07); color: #dfe9f4; font-size: 0.7rem; white-space: nowrap; }

.architecture-panel { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.architecture-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 17px 20px; border-bottom: 1px solid var(--line); color: var(--muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 0.7rem; }
.architecture-panel-head strong { color: var(--purple); }
.architecture-flow { display: flex; align-items: stretch; gap: 10px; padding: 30px 24px; }
.architecture-node { min-width: 0; min-height: 126px; display: flex; flex: 1 1 0; flex-direction: column; padding: 15px; border: 1px solid var(--line); border-radius: 13px; background: #faf9f6; }
.architecture-node.active { border-color: #95dcd3; background: #edf8f6; }
.architecture-node small { color: var(--purple); font-family: "SFMono-Regular", Consolas, monospace; font-size: 0.64rem; font-weight: 850; }
.architecture-node strong { margin-top: auto; color: var(--navy); font-size: 0.9rem; }
.architecture-node span { margin-top: 3px; color: var(--muted); font-size: 0.69rem; line-height: 1.35; }
.architecture-node code { font-size: 0.92em; }
.architecture-arrow { width: 18px; display: grid; flex: 0 0 18px; place-items: center; color: var(--cyan); font-size: 1.1rem; }
.architecture-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 9px 18px; padding: 16px 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.72rem; }
.architecture-meta span::before { color: var(--green); content: "✓ "; font-weight: 900; }
.architecture-meta a { margin-left: auto; color: var(--navy); font-weight: 820; }
.architecture-foot { padding: 0 24px 24px; color: var(--muted); font-size: 0.8rem; }
.architecture-link { margin-top: 18px; text-align: right; }

.docs-section { border-top: 1px solid var(--line); background: #fff; }
.docs-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.doc-card { min-height: 194px; display: flex; flex-direction: column; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); transition: border-color 150ms ease, transform 150ms ease; }
.doc-card:hover, .doc-card:focus-visible { border-color: #86cec5; transform: translateY(-3px); outline: none; }
.card-index { color: var(--purple); font-family: "SFMono-Regular", Consolas, monospace; font-size: 0.68rem; font-weight: 850; }
.doc-card h3 { margin: 27px 0 7px; color: var(--navy); font-size: 1.08rem; letter-spacing: -0.03em; }
.doc-card p { margin: 0; color: var(--muted); font-size: 0.8rem; line-height: 1.5; }
.card-arrow { margin-top: auto; padding-top: 16px; color: var(--navy); font-size: 0.73rem; font-weight: 820; }

/* Documentation pages */
.docs-page { background: var(--paper); }
.docs-shell { display: grid; grid-template-columns: 220px minmax(0, 1fr); align-items: start; gap: clamp(38px, 6vw, 72px); padding-top: 52px; padding-bottom: 96px; }
.docs-sidebar { position: sticky; top: 100px; }
.sidebar-label { margin-bottom: 12px; color: var(--faint); font-size: 0.66rem; font-weight: 850; letter-spacing: 0.14em; text-transform: uppercase; }
.sidebar-nav { display: grid; gap: 2px; }
.sidebar-nav a { padding: 8px 11px; border-left: 2px solid transparent; color: var(--muted); font-size: 0.79rem; font-weight: 700; }
.sidebar-nav a:hover, .sidebar-nav a:focus-visible, .sidebar-nav a[aria-current="page"] { border-left-color: var(--cyan); background: #eaf6f3; color: var(--navy); outline: none; }
.sidebar-meta { margin-top: 26px; padding: 13px; border: 1px solid var(--line); border-radius: 11px; background: #fff; color: var(--muted); font-size: 0.7rem; }
.sidebar-meta strong { display: block; margin-bottom: 4px; color: var(--navy); }
.mobile-toc { display: none; margin-bottom: 26px; border: 1px solid var(--line); border-radius: 11px; background: #fff; }
.mobile-toc summary { min-height: 46px; display: flex; align-items: center; padding: 0 14px; cursor: pointer; color: var(--navy); font-size: 0.79rem; font-weight: 800; }
.mobile-toc nav { display: grid; padding: 0 10px 10px; }
.mobile-toc a { padding: 7px 5px; color: var(--muted); font-size: 0.78rem; }
.doc-content { min-width: 0; max-width: 830px; }
.doc-content h1 { margin: 11px 0 15px; color: var(--navy); font-size: clamp(2.5rem, 5vw, 4.5rem); letter-spacing: -0.07em; line-height: 0.98; }
.doc-lead { max-width: 760px; margin: 0 0 32px; color: var(--muted); font-size: 1.05rem; line-height: 1.68; }
.doc-content h2 { margin: 52px 0 13px; color: var(--navy); font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.045em; line-height: 1.12; scroll-margin-top: 105px; }
.doc-content h3 { margin: 31px 0 8px; color: var(--navy); font-size: 1.08rem; scroll-margin-top: 105px; }
.doc-content p, .doc-content li { color: #505b67; }
.doc-content p { margin: 0 0 16px; }
.doc-content ul, .doc-content ol { margin: 0 0 20px; padding-left: 21px; }
.doc-content li + li { margin-top: 7px; }
.doc-content strong { color: var(--navy); }
.doc-content a:not(.button) { color: #175fb5; text-decoration: underline; text-decoration-color: rgba(23,95,181,0.28); text-underline-offset: 3px; }
.doc-content :not(pre) > code { padding: 2px 5px; border: 1px solid #d8dce0; border-radius: 5px; background: #f0f1f1; color: #314d74; font-size: 0.88em; }
.doc-content pre { margin: 19px 0 25px; border: 1px solid #1e3557; border-radius: 12px; background: #0b1d37; box-shadow: var(--shadow); }
.doc-content table { width: 100%; margin: 20px 0 26px; border-collapse: collapse; font-size: 0.84rem; }
.doc-content th, .doc-content td { padding: 11px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.doc-content th { color: var(--navy); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; }
.doc-content td { color: var(--muted); }
.callout { margin: 23px 0 27px; padding: 16px 18px; border: 1px solid #c9e2dd; border-left: 4px solid var(--cyan); border-radius: 10px; background: #edf8f6; }
.callout.warning { border-color: #ead8a5; border-left-color: var(--yellow); background: #fff8e7; }
.callout strong { display: block; margin-bottom: 3px; }
.doc-mark-card { display: grid; grid-template-columns: 82px 1fr; align-items: center; gap: 18px; margin: 0 0 31px; padding: 15px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.doc-mark-card img { width: 82px; height: 82px; padding: 5px; border: 1px solid var(--line); border-radius: 18px; background: var(--paper); }
.doc-mark-card strong { display: block; margin-bottom: 3px; }
.doc-mark-card span { color: var(--muted); font-size: 0.8rem; }
.doc-page-footer { display: flex; justify-content: space-between; gap: 20px; margin-top: 64px; padding-top: 19px; border-top: 1px solid var(--line); font-size: 0.75rem; }
.roadmap-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.roadmap-card { padding: 19px; border: 1px solid var(--line); border-radius: 13px; background: #fff; }
.roadmap-card h3 { margin: 15px 0 7px; }
.roadmap-card p { margin: 0; font-size: 0.82rem; }
.roadmap-status { display: inline-flex; min-height: 24px; align-items: center; padding: 0 8px; border-radius: 99px; background: #e5f5ef; color: #087652; font-size: 0.63rem; font-weight: 850; letter-spacing: 0.06em; text-transform: uppercase; }
.roadmap-status.progress { background: #eee9ff; color: #5940c7; }
.roadmap-status.planned { background: #fff2cf; color: #8c6200; }

.site-footer { padding: 30px 0 calc(30px + env(safe-area-inset-bottom)); background: var(--navy); color: #aebed0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-brand { display: inline-flex; align-items: center; gap: 9px; color: #fff; font-size: 0.82rem; font-weight: 800; }
.footer-brand img { width: 27px; height: 27px; padding: 2px; border-radius: 7px; background: #fff; }
.footer-copy, .footer-links { font-size: 0.73rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 15px; }
.footer-links a:hover, .footer-links a:focus-visible { color: #fff; outline: none; }

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) 280px; gap: 45px; }
  .mark-frame { width: 280px; min-width: 0; }
  .architecture-flow { display: grid; grid-template-columns: 1fr; }
  .architecture-arrow { width: auto; transform: rotate(90deg); }
  .architecture-node { min-height: 96px; }
  .docs-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  .container { width: min(calc(100% - 34px), var(--container)); }
  .menu-toggle { display: inline-flex; }
  .nav-links { position: absolute; top: calc(100% + 4px); right: 17px; left: 17px; display: none; flex-direction: column; align-items: stretch; padding: 8px; border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow); }
  .site-header.nav-open .nav-links { display: flex; }
  .nav-links a { min-height: 45px; padding: 0 12px; }
  .nav-links .nav-github { margin-left: 0; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mark { justify-self: start; }
  .mark-frame { width: min(64vw, 300px); }
  .quick-grid, .agent-strip { grid-template-columns: 1fr; }
  .docs-shell { grid-template-columns: 1fr; gap: 0; padding-top: 30px; }
  .docs-sidebar { display: none; }
  .mobile-toc { display: block; }
}

@media (max-width: 620px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .brand-tagline { display: none; }
  .hero { padding: 60px 0 64px; }
  .hero h1 { font-size: clamp(3rem, 16vw, 4.5rem); }
  .hero-actions { display: grid; }
  .hero-actions .button { width: 100%; }
  .hero-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mark-frame { width: min(78vw, 280px); }
  .section-heading { display: block; margin-bottom: 25px; }
  .section-heading p { margin-top: 13px; }
  .install-row { align-items: stretch; flex-direction: column; }
  .install-row code { overflow-x: auto; }
  .install-row a { margin: 5px 0 0; }
  .mode-grid, .docs-grid, .roadmap-grid { grid-template-columns: 1fr; }
  .mode-card { padding: 21px; }
  .agent-strip { padding: 21px; }
  .architecture-meta { align-items: flex-start; flex-direction: column; }
  .architecture-meta a { margin: 4px 0 0; }
  pre { padding: 17px 14px; font-size: 0.71rem; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .doc-content h1 { font-size: clamp(2.55rem, 14vw, 4rem); }
  .doc-lead { font-size: 0.98rem; }
  .doc-content h2 { margin-top: 43px; }
  .doc-content table { display: block; overflow-x: auto; white-space: nowrap; }
  .doc-mark-card { grid-template-columns: 62px 1fr; gap: 12px; padding: 12px; }
  .doc-mark-card img { width: 62px; height: 62px; border-radius: 14px; }
  .doc-page-footer { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}