/* Brand tokens. Light-first, with a dark override via data-theme="dark" or
   the system prefers-color-scheme: dark media query.
   Extracted from an inline <style> block so it can be reused/linked rather
   than copy-pasted across pages. */
:root {
  --bg: #f7f9fb;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #14213d;
  --text-dim: #4a5872;
  --brand: #1c2b4a;
  --accent: #47c9a2;
  --accent-dim: #d7f3ea;
  --code-bg: #101a2e;
  --code-text: #d9e6ff;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1220;
    --surface: #121b2e;
    --border: #24314a;
    --text: #eef2f8;
    --text-dim: #a6b3cc;
    --brand: #8fb4ff;
    --accent: #56d6ac;
    --accent-dim: #163229;
    --code-bg: #060a14;
    --code-text: #d9e6ff;
  }
}
[data-theme="dark"] {
  --bg: #0b1220;
  --surface: #121b2e;
  --border: #24314a;
  --text: #eef2f8;
  --text-dim: #a6b3cc;
  --brand: #8fb4ff;
  --accent: #56d6ac;
  --accent-dim: #163229;
  --code-bg: #060a14;
  --code-text: #d9e6ff;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.55;
}
a { color: var(--brand); }
.skip-link {
  position: fixed; left: 16px; top: 12px; z-index: 20; transform: translateY(-180%);
  background: var(--surface); color: var(--text); border: 2px solid var(--accent);
  border-radius: 6px; padding: 8px 12px;
}
.skip-link:focus { transform: translateY(0); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* Header */
header.site {
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 0;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; text-decoration: none; color: var(--text); }
.brand-mark {
  width: 28px; height: 28px; border-radius: 7px; background: var(--brand);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); font-family: "IBM Plex Mono", monospace; font-weight: 600; font-size: 0.9rem;
}
.site-nav { display: flex; align-items: center; gap: 16px; font-size: 0.88rem; flex-wrap: wrap; }
.site-nav a { text-decoration: none; color: var(--text-dim); transition: color 0.15s; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); }
.site-nav a[aria-current="page"] { font-weight: 600; }
.nav-sep { color: var(--border); }
.theme-toggle {
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  border-radius: 8px; padding: 5px 9px; cursor: pointer; font-size: 0.82rem;
  transition: border-color 0.15s ease;
}
.theme-toggle:hover { border-color: var(--accent); }

/* Hero */
.hero { padding: 64px 0 48px; position: relative; overflow: hidden; }

.hero::before {
  content: '';
  position: absolute;
  top: -150px;
  left: 50%;
  width: 900px;
  height: 480px;
  transform: translateX(-50%);
  background:
    radial-gradient(closest-side, color-mix(in srgb, var(--accent) 20%, transparent), transparent 70%) 30% 40%,
    radial-gradient(closest-side, color-mix(in srgb, var(--brand) 16%, transparent), transparent 70%) 72% 55%;
  background-repeat: no-repeat;
  pointer-events: none;
  z-index: 0;
}

.hero .wrap { position: relative; z-index: 1; }

.grad-text {
  background: linear-gradient(90deg, var(--brand), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-block; font-family: "IBM Plex Mono", monospace; font-size: 0.78rem;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent);
  background: var(--accent-dim); padding: 4px 10px; border-radius: 999px; margin-bottom: 18px;
}
h1 { font-size: clamp(2rem, 4.5vw, 3rem); line-height: 1.12; margin: 0 0 18px; letter-spacing: -0.01em; }
.lede { font-size: 1.15rem; color: var(--text-dim); max-width: 640px; margin: 0 0 30px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.evidence-chain {
  display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 46px;
  border: 1px solid var(--border); background: var(--surface); border-radius: var(--radius);
  overflow: hidden;
}
.evidence-chain div { padding: 18px; border-right: 1px solid var(--border); }
.evidence-chain div:last-child { border-right: 0; }
.evidence-chain span, .evidence-chain small { display: block; }
.evidence-chain span { color: var(--accent); font: 500 .7rem/1.2 "IBM Plex Mono", monospace; text-transform: uppercase; letter-spacing: .04em; }
.evidence-chain strong { display: block; margin: 10px 0 6px; font-size: .95rem; }
.evidence-chain small { color: var(--text-dim); line-height: 1.35; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  padding: 11px 20px; border-radius: 9px; font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { box-shadow: 0 10px 22px -12px color-mix(in srgb, var(--brand) 60%, transparent); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border); }

@media (max-width: 760px) {
  .evidence-chain { grid-template-columns: 1fr 1fr; }
  .evidence-chain div:nth-child(2) { border-right: 0; }
  .evidence-chain div:nth-child(-n + 2) { border-bottom: 1px solid var(--border); }
}

@media (max-width: 460px) {
  .evidence-chain { grid-template-columns: 1fr; }
  .evidence-chain div { border-right: 0; border-bottom: 1px solid var(--border); }
  .evidence-chain div:last-child { border-bottom: 0; }
}

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

/* Sections */
.section-heading { margin: 0 0 8px; font-size: 1.6rem; }
.section-sub { color: var(--text-dim); margin: 0 0 32px; max-width: 620px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: 0 14px 28px -16px color-mix(in srgb, var(--accent) 35%, transparent);
}
.card.card-featured {
  border-color: var(--accent);
  border-width: 2px;
  background: color-mix(in srgb, var(--accent-dim) 55%, var(--surface));
}
.card-icon {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.card-icon svg { width: 18px; height: 18px; }
.card .tag {
  font-family: "IBM Plex Mono", monospace; font-size: 0.72rem; color: var(--accent);
  text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 10px; display: block;
}
.card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--text-dim); font-size: 0.92rem; }

/* Tiers */
section.tiers { padding: 40px 0 8px; }

/* Stack */
section.stack {
  padding: 48px 0 40px;
  background: color-mix(in srgb, var(--surface) 45%, var(--bg));
}
.stack-panel {
  background: var(--code-bg); color: var(--code-text); border-radius: var(--radius);
  padding: 44px 28px 26px; font-family: "IBM Plex Mono", monospace; font-size: 0.85rem;
  overflow-x: auto;
  position: relative;
}
.stack-panel::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 28px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ff5f57;
  box-shadow: 18px 0 0 #febc2e, 36px 0 0 #28c840;
}
.stack-panel .line { white-space: pre; line-height: 1.8; }
.stack-panel .dim { color: #7c8caf; }

/* PowerShell scripts table */
section.scripts { padding: 40px 0; }
.scripts-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.scripts-table th {
  text-align: left; padding: 10px 14px; border-bottom: 2px solid var(--border);
  font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.scripts-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.scripts-table tr:last-child td { border-bottom: none; }
.scripts-table tbody tr { transition: background 0.15s ease; }
.scripts-table tbody tr:hover { background: color-mix(in srgb, var(--accent-dim) 40%, transparent); }
.script-name {
  font-family: "IBM Plex Mono", monospace; font-size: 0.82rem; color: var(--accent);
  white-space: nowrap;
}
.scripts-table td:last-child { color: var(--text-dim); }
@media (max-width: 640px) {
  .script-name { white-space: normal; overflow-wrap: break-word; }
}

/* Ecosystem */
section.ecosystem { padding: 48px 0 40px; }
.eco-table { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.eco-row {
  display: grid; grid-template-columns: 120px 160px 1fr; gap: 16px;
  padding: 16px 20px; border-bottom: 1px solid var(--border); align-items: start;
  transition: background 0.15s ease;
}
.eco-row:hover { background: color-mix(in srgb, var(--surface) 60%, var(--accent-dim)); }
.eco-row:last-child { border-bottom: none; }
.eco-product { font-weight: 600; text-decoration: none; color: var(--brand); }
.eco-product:hover { color: var(--accent); }
.eco-rel { font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; color: var(--accent); padding-top: 2px; }
.eco-desc { color: var(--text-dim); font-size: 0.9rem; }
@media (max-width: 640px) {
  .eco-row { grid-template-columns: 1fr; gap: 4px; }
  .eco-rel { display: none; }
}

/* Origin */
section.origin {
  padding: 48px 0 40px;
  background: color-mix(in srgb, var(--surface) 45%, var(--bg));
}
.origin-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 32px; max-width: 760px;
  transition: border-color 0.18s ease;
}
.origin-card:hover { border-color: color-mix(in srgb, var(--accent) 35%, var(--border)); }
.origin-card p { margin: 0 0 14px; color: var(--text-dim); font-size: 0.97rem; }
.origin-card p:last-child { margin-bottom: 0; }

/* Pricing */
section.pricing { padding: 48px 0 40px; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; margin-bottom: 22px; }
.pricing-grid .price { font-size: 1.8rem; font-weight: 700; margin: 4px 0 0; }
.pricing-grid .price-unit { color: var(--text-dim); font-size: 0.82rem; margin: 0 0 14px; }
.pricing-grid .card ul { margin: 0; padding-left: 18px; color: var(--text-dim); font-size: 0.88rem; }
.pricing-grid .card li { margin-bottom: 6px; }
.pricing-note { color: var(--text-dim); font-size: 0.92rem; max-width: 640px; }
.pricing-note a { color: var(--brand); font-weight: 600; }

/* Status */
section.status { padding: 8px 0 56px; }
.status-card {
  display: flex; align-items: flex-start; gap: 14px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px;
}
.status-dot {
  width: 10px; height: 10px; border-radius: 50%; background: var(--accent);
  margin-top: 6px; flex-shrink: 0;
}
.status-card p { margin: 0; color: var(--text-dim); font-size: 0.92rem; }
.status-card strong { color: var(--text); }
.status-link { color: var(--brand); margin-left: 4px; }

/* Footer */
footer.site {
  border-top: 1px solid var(--border); padding: 28px 0 40px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  color: var(--text-dim); font-size: 0.85rem;
}
.footer-nav { display: flex; gap: 16px; flex-wrap: wrap; }
footer.site a { color: var(--text-dim); text-decoration: none; }
footer.site a:hover { color: var(--text); }