/* MADS V5 website. No external fonts or frameworks: system fonts, one stylesheet. */
:root {
  --bg: #ffffff;
  --bg-soft: #f4f5f9;
  --surface: #ffffff;
  --text: #1a1f2e;
  --muted: #586079;
  --border: #e2e5ee;
  --accent: #0b60ac;
  --accent-strong: #084a86;
  --accent-soft: #e8f1fb;
  --space: #0b1020;
  --space-2: #141c38;
  --on-space: #e8eaf4;
  --on-space-muted: #a6aeca;
  --code-bg: #0f1528;
  --code-text: #e6e9f5;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020;
    --bg-soft: #10172d;
    --surface: #141c36;
    --text: #e7e9f3;
    --muted: #a6aeca;
    --border: #25304f;
    --accent: #5ea5ec;
    --accent-strong: #8cc0f3;
    --accent-soft: #13223f;
    --shadow: none;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; font: 17px/1.65 var(--font); color: var(--text); background: var(--bg); }
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: .15em; }
a:hover { color: var(--accent-strong); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.01em; }
code, pre { font-family: var(--mono); font-size: .9em; }

.container { width: min(1160px, 100% - 32px); margin-inline: auto; }
/* Grid items default to min-width:auto and grow to fit wide code blocks; let them shrink. */
.hero-grid > *, .split > *, .grid > *, .docs > *, .footer-grid > *, .flow > * { min-width: 0; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 16px; }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; gap: 16px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-size: 1.15rem; }
.brand strong { color: var(--accent); }
.brand img { background: #fff; border-radius: 8px; padding: 2px; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 22px; }
.site-nav a { color: var(--text); text-decoration: none; font-size: .95rem; }
.site-nav a:hover, .site-nav a[aria-current] { color: var(--accent); }
.site-nav .lang { color: var(--muted); border: 1px solid var(--border); padding: 3px 10px; border-radius: 999px; font-size: .85rem; }
.menu-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 6px 12px; font: inherit; font-size: .9rem; }
@media (max-width: 860px) {
  .menu-toggle { display: inline-block; }
  .site-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px 16px 16px; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 4px; border-bottom: 1px solid var(--border); }
  .site-nav .lang { border-radius: 8px; margin-top: 8px; text-align: center; }
  .site-nav .btn { margin-top: 12px; text-align: center; }
}

/* ---------- buttons ---------- */
.btn { display: inline-block; background: var(--accent); color: #fff; text-decoration: none; padding: 12px 22px; border-radius: 10px; font-weight: 600; border: 1px solid transparent; }
.btn:hover { background: var(--accent-strong); color: #fff; }
.btn-ghost { background: transparent; color: inherit; border-color: currentColor; }
.btn-ghost:hover { background: rgba(255, 255, 255, .08); color: inherit; }
.btn-small { padding: 7px 14px; font-size: .9rem; }
.site-nav .btn, .site-nav .btn:hover { color: #fff; }
@media (prefers-color-scheme: dark) { .btn, .site-nav .btn, .site-nav .btn:hover { color: #06182c; } .btn:hover { color: #06182c; } }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; color: var(--on-space); background: radial-gradient(900px 500px at 85% 20%, rgba(30, 120, 210, .35), transparent 60%), linear-gradient(180deg, var(--space), var(--space-2)); padding: 88px 0 96px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero .eyebrow { color: #7fb6ee; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; font-size: .8rem; margin: 0 0 14px; }
.hero h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); margin: 0 0 18px; color: #fff; }
.hero h1 em { font-style: normal; color: #7fb6ee; }
.hero .lead { font-size: 1.2rem; color: var(--on-space-muted); max-width: 40em; margin: 0 0 30px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .btn { color: #fff; } .hero .btn-ghost { color: var(--on-space); }
@media (prefers-color-scheme: dark) { .hero .btn { color: #06182c; } .hero .btn-ghost { color: var(--on-space); } }
.hero-visual { position: relative; }
.hero-visual .planet { width: min(240px, 60%); display: block; margin: 0 auto -36px; padding: 22px; background: #fff; border-radius: 22%; box-shadow: 0 24px 60px rgba(30, 120, 210, .45); position: relative; z-index: 1; }
.terminal { background: rgba(8, 12, 26, .85); border: 1px solid #2b3557; border-radius: 12px; box-shadow: 0 20px 50px rgba(0, 0, 0, .45); position: relative; }
.terminal-bar { display: flex; gap: 6px; padding: 10px 12px; border-bottom: 1px solid #222b48; }
.terminal-bar span { width: 10px; height: 10px; border-radius: 50%; background: #3a4466; }
.terminal pre { margin: 0; padding: 16px 18px; color: var(--code-text); overflow-x: auto; line-height: 1.7; }
.terminal .c { color: #7d87a8; } .terminal .p { color: #7fb6ee; }
@media (max-width: 900px) { .hero { padding: 56px 0 64px; } .hero-grid { grid-template-columns: 1fr; } .hero-visual .planet { display: none; } }

/* ---------- sections ---------- */
.section { padding: 88px 0; }
.section.soft { background: var(--bg-soft); }
.section-head { max-width: 760px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(1.8rem, 3.2vw, 2.4rem); margin: 0 0 12px; }
.section-head p { color: var(--muted); font-size: 1.1rem; margin: 0; }
.kicker { color: var(--accent); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: .78rem; margin: 0 0 10px; }
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } .section { padding: 64px 0; } }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.card h3 { margin: 6px 0 8px; font-size: 1.2rem; }
.card p { margin: 0; color: var(--muted); }
.card .icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.card .icon svg { width: 24px; height: 24px; }
.card a.more { display: inline-block; margin-top: 14px; font-weight: 600; text-decoration: none; }

/* how it works */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.flow li { list-style: none; position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 22px; box-shadow: var(--shadow); }
.flow li::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; margin-bottom: 12px; }
@media (prefers-color-scheme: dark) { .flow li::before { color: #06182c; } }
.flow h3 { margin: 0 0 6px; font-size: 1.08rem; }
.flow p { margin: 0 0 10px; color: var(--muted); font-size: .97rem; }
.flow code { display: inline-block; background: var(--bg-soft); border: 1px solid var(--border); border-radius: 6px; padding: 1px 7px; font-size: .82rem; }
.flow { padding: 0; margin: 0; }
@media (max-width: 980px) { .flow { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .flow { grid-template-columns: 1fr; } }
.diagram { margin: 48px auto 0; max-width: 980px; }
.diagram svg { width: 100%; height: auto; display: block; }

/* compile-time example */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.split h2 { font-size: clamp(1.7rem, 3vw, 2.2rem); margin: 0 0 14px; }
.split p { color: var(--muted); }
.check { list-style: none; padding: 0; margin: 18px 0 0; }
.check li { padding-left: 30px; position: relative; margin: 10px 0; }
.check li::before { content: ""; position: absolute; left: 0; top: .42em; width: 18px; height: 18px; border-radius: 50%; background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230b60ac' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center / 12px no-repeat; }
.code-card { background: var(--code-bg); color: var(--code-text); border-radius: var(--radius); padding: 0; overflow: hidden; border: 1px solid #222b48; }
.code-card .label { font: 600 .78rem var(--font); letter-spacing: .06em; text-transform: uppercase; padding: 10px 16px; border-bottom: 1px solid #222b48; color: #9aa3c0; display: flex; justify-content: space-between; }
.code-card .label .bad { color: #ff8f8f; } .code-card .label .good { color: #8fe3a5; }
.code-card pre { margin: 0; padding: 16px; overflow-x: auto; }
.code-card + .code-card { margin-top: 14px; }
.tok-k { color: #7fb6ee; } .tok-s { color: #b5e8a1; } .tok-c { color: #7d87a8; }

/* stats */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; text-align: center; }
.stats div { padding: 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.stats strong { display: block; font-size: 2.6rem; color: var(--accent); line-height: 1.1; }
.stats span { color: var(--muted); }
@media (max-width: 700px) { .stats { grid-template-columns: 1fr; } }

/* chips */
.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; padding: 0; margin: 0; }
.chips li { list-style: none; border: 1px solid var(--border); background: var(--surface); padding: 7px 14px; border-radius: 999px; font-size: .93rem; }

/* tabs (install) */
.tabs { max-width: 760px; margin: 0 auto; }
.tablist { display: flex; gap: 6px; margin-bottom: -1px; }
.tablist button { font: inherit; font-size: .95rem; padding: 9px 16px; border: 1px solid var(--border); border-bottom: none; background: var(--bg-soft); color: var(--muted); border-radius: 10px 10px 0 0; cursor: pointer; }
.tablist button[aria-selected="true"] { background: var(--code-bg); color: var(--code-text); border-color: var(--code-bg); }
.tabpanel { background: var(--code-bg); color: var(--code-text); border-radius: 0 12px 12px 12px; position: relative; }
.tabpanel pre { margin: 0; padding: 18px 20px; overflow-x: auto; }
.tabpanel[hidden] { display: none; }
.tabs-note { text-align: center; color: var(--muted); margin-top: 18px; }

/* CTA */
.cta { text-align: center; color: var(--on-space); background: radial-gradient(700px 300px at 50% 0%, rgba(30, 120, 210, .3), transparent 70%), var(--space); border-radius: 22px; padding: 56px 24px; }
.cta h2 { color: #fff; font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 0 0 12px; }
.cta p { color: var(--on-space-muted); margin: 0 0 26px; }
.cta .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta .btn { color: #fff; } .cta .btn-ghost { color: var(--on-space); }
@media (prefers-color-scheme: dark) { .cta .btn { color: #06182c; } .cta { border: 1px solid var(--border); } }

/* copy button */
.codeblock { position: relative; }
.copy { position: absolute; top: 8px; right: 8px; font: 600 .75rem var(--font); background: #222b48; color: #cfd5ea; border: 1px solid #333e66; border-radius: 6px; padding: 4px 9px; cursor: pointer; opacity: .85; }
.copy:hover { opacity: 1; }

/* ---------- docs & prose ---------- */
.page { padding: 56px 0 80px; }
.prose { max-width: 820px; }
.page.prose { margin-inline: auto; }
.prose h1 { font-size: clamp(2rem, 3.6vw, 2.6rem); margin: 0 0 16px; }
.prose h2 { font-size: 1.55rem; margin: 2.2em 0 .6em; padding-top: .2em; }
.prose h3 { font-size: 1.2rem; margin: 1.8em 0 .5em; }
.prose p, .prose li { color: var(--text); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: .3em 0; }
.prose :not(pre) > code { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 6px; padding: .08em .4em; font-size: .86em; }
.prose pre { background: var(--code-bg); color: var(--code-text); border-radius: 12px; padding: 16px 18px; overflow-x: auto; position: relative; line-height: 1.6; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: .95rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.prose th { background: var(--bg-soft); }
.prose blockquote { margin: 1.4em 0; padding: 12px 18px; border-left: 4px solid var(--accent); background: var(--accent-soft); border-radius: 0 10px 10px 0; }
.prose blockquote p { margin: .3em 0; }
.prose h2 a, .prose h3 a { color: inherit; text-decoration: none; }
.docs { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; padding: 40px 0 80px; }
.docs-nav { position: sticky; top: 88px; align-self: start; }
.docs-nav ul { list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--border); }
.docs-nav a { display: block; padding: 7px 14px; margin-left: -2px; border-left: 2px solid transparent; color: var(--muted); text-decoration: none; font-size: .95rem; }
.docs-nav a:hover { color: var(--text); }
.docs-nav a[aria-current] { color: var(--accent); border-left-color: var(--accent); font-weight: 600; }
@media (max-width: 860px) {
  .docs { grid-template-columns: 1fr; gap: 20px; padding-top: 24px; }
  .docs-nav { position: static; }
  .docs-nav ul { display: flex; flex-wrap: wrap; gap: 6px; border: none; }
  .docs-nav a { border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; margin: 0; }
  .docs-nav a[aria-current] { border-color: var(--accent); }
}
.breadcrumbs { font-size: .88rem; color: var(--muted); margin-bottom: 10px; }
.breadcrumbs a { color: var(--muted); }
.pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--border); }
.pager a { display: flex; flex-direction: column; text-decoration: none; padding: 12px 16px; border: 1px solid var(--border); border-radius: 12px; min-width: 40%; }
.pager a span { font-size: .8rem; color: var(--muted); }
.pager-next { margin-left: auto; text-align: right; }
.doc-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 1.5em 0; }
.doc-cards a { display: block; border: 1px solid var(--border); border-radius: 12px; padding: 18px; text-decoration: none; color: var(--text); background: var(--surface); }
.doc-cards a:hover { border-color: var(--accent); }
.doc-cards strong { display: block; color: var(--accent); margin-bottom: 4px; }
.doc-cards span { color: var(--muted); font-size: .95rem; }
@media (max-width: 700px) { .doc-cards { grid-template-columns: 1fr; } }

/* FAQ */
.faq-item { border: 1px solid var(--border); border-radius: 12px; margin: 12px 0; background: var(--surface); }
.faq-item summary { cursor: pointer; padding: 16px 20px; list-style: none; display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.5rem; color: var(--accent); line-height: 1; }
.faq-item[open] summary::after { content: "–"; }
.faq-item summary h2 { font-size: 1.1rem; margin: 0; padding: 0; }
.faq-answer { padding: 0 20px 8px; }

/* ---------- footer ---------- */
.site-footer { background: var(--bg-soft); border-top: 1px solid var(--border); padding: 56px 0 24px; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; }
.footer-grid h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 12px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin: 6px 0; }
.footer-grid a { color: var(--text); text-decoration: none; }
.footer-grid a:hover { color: var(--accent); }
.footer-grid p { color: var(--muted); }
.footer-grid address { font-style: normal; color: var(--muted); line-height: 1.9; }
.footer-bottom { margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--muted); font-size: .85rem; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.prose td code { white-space: nowrap; }
.codeblock pre { padding-top: 38px; }