:root {
  --font-display: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --text-hero: clamp(2.9rem, 7vw, 6rem);
  --text-section: clamp(2rem, 4.8vw, 4rem);
  --text-subline: clamp(1.15rem, 2.3vw, 1.75rem);
  --text-body: 17px;
  --text-caption: 12px;
  --tracking-tight: -0.03em;
  --tracking-tighter: -0.05em;
  --lh-headline: 1.07;
  --lh-body: 1.56;
  --color-accent-primary: #147d89;
  --color-accent-primary-light: #1a9eac;
  --color-accent-secondary: #f35a7b;
  --color-accent-secondary-light: #f87d98;
  --color-accent-primary-subtle: rgba(20,125,137,0.06);
  --color-accent-secondary-subtle: rgba(243,90,123,0.06);
  --gradient-brand-soft: linear-gradient(135deg, rgba(20,125,137,0.10) 0%, rgba(243,90,123,0.06) 100%);
  --gradient-glow: radial-gradient(ellipse at 50% 0%, rgba(20,125,137,0.2) 0%, rgba(243,90,123,0.08) 50%, transparent 80%);
  --color-bg-primary: #f4f6f6;
  --color-bg-section-alt: #eaeeee;
  --color-bg-elevated: #fafbfb;
  --color-bg-dark: #0b1214;
  --color-surface: #ffffff;
  --color-text-primary: #1a1d1e;
  --color-text-secondary: #5c6568;
  --color-text-tertiary: #8a9194;
  --color-link: var(--color-accent-primary);
  --color-link-hover: var(--color-accent-primary-light);
  --color-divider: #d4d9da;
  --color-divider-subtle: rgba(0,0,0,0.06);
  --content-wide: 1200px;
  --content-padding: clamp(20px, 5vw, 60px);
  --spacing-section: clamp(80px, 12vw, 160px);
  --nav-height: 48px;
  --radius-card: 28px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-body); font-size: var(--text-body); line-height: var(--lh-body); background: var(--color-bg-primary); color: var(--color-text-primary); }
a { color: var(--color-link); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { color: var(--color-link-hover); }
svg { display: block; max-width: 100%; height: auto; }
main { padding-top: var(--nav-height); }
.skip-link { position: absolute; left: 12px; top: -100px; z-index: 10000; background: var(--color-surface); padding: 10px 14px; border: 1px solid var(--color-divider); border-radius: 12px; }
.skip-link:focus { top: 12px; }
.global-nav { position: fixed; inset: 0 0 auto 0; height: var(--nav-height); z-index: 9999; background: rgba(244,246,246,0.78); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-bottom: .5px solid var(--color-divider); }
.nav-inner, .section-content, .footer-inner { max-width: var(--content-wide); margin: 0 auto; padding-inline: var(--content-padding); }
.nav-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--color-text-primary); text-decoration: none; }
.brand span { color: var(--color-accent-primary); }
.nav-toggle { display: inline-flex; border: 0; background: transparent; padding: 6px; color: inherit; }
.nav-links { position: fixed; inset: var(--nav-height) 0 0 0; background: rgba(244,246,246,0.98); padding: 28px var(--content-padding); display: none; flex-direction: column; gap: 14px; }
.nav-links.is-open { display: flex; }
.nav-links a { font-size: 14px; color: var(--color-text-secondary); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--color-text-primary); text-decoration: underline; text-decoration-color: var(--color-accent-primary); }
.section { padding-block: var(--spacing-section); }
.section--alt { background: var(--color-bg-section-alt); }
.section--dark { background: var(--color-bg-dark); color: #e8ecec; position: relative; }
.section--dark::before { content: ""; position: absolute; inset: -10% -5% auto; height: 420px; background: var(--gradient-glow); filter: blur(80px); opacity: .7; pointer-events: none; }
.section--dark .section-content, .section--dark .card, .section--dark .diagram-card, .section--dark .visual-panel { position: relative; z-index: 1; }
.section--dark p, .section--dark h1, .section--dark h2, .section--dark h3, .section--dark li, .section--dark .meta { color: inherit; }
.section--dark .card, .section--dark .diagram-card { background: #1c2426; border-color: rgba(255,255,255,0.08); }
.eyebrow { display: inline-block; margin-bottom: 16px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--color-accent-primary); }
h1, h2, h3 { margin: 0 0 16px; line-height: var(--lh-headline); letter-spacing: var(--tracking-tight); }
h1 { font-size: var(--text-hero); letter-spacing: var(--tracking-tighter); }
h2 { font-size: var(--text-section); }
h3 { font-size: clamp(1.25rem, 2vw, 1.75rem); }
p { margin: 0 0 16px; max-width: 68ch; color: var(--color-text-secondary); }
.lead { font-size: var(--text-subline); max-width: 42ch; }
.centered { text-align: center; margin-inline: auto; }
.hero-grid, .two-col, .cards-grid, .feature-grid, .team-grid, .machine-grid, .contact-grid, .roadmap-grid, .bento-grid, .footer-grid { display: grid; gap: 18px; }
.hero-grid, .two-col { align-items: center; gap: clamp(28px, 4vw, 60px); }
.cards-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.feature-grid, .team-grid, .machine-grid, .roadmap-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.contact-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.bento-grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.footer-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.card, .diagram-card, .timeline-card, .contact-card, .table-wrap, .notice, .visual-panel { background: var(--color-surface); border: 1px solid var(--color-divider-subtle); border-radius: var(--radius-card); padding: clamp(22px, 3vw, 36px); }
.diagram-card { background: var(--color-bg-elevated); }
.visual-panel { background: var(--gradient-brand-soft); }
.visual-panel--dark { background: rgba(255,255,255,0.03); border-color: rgba(255,255,255,0.08); }
.link-cta { font-size: clamp(1rem, 2vw, 1.25rem); text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.link-cta::after { content: "›"; font-size: 1.2em; }
.link-row { display: flex; flex-wrap: wrap; gap: 16px 24px; }
.kicker { color: var(--color-text-primary); font-weight: 600; }
.meta { color: var(--color-text-secondary); }
.notice { border-color: rgba(243,90,123,0.22); background: linear-gradient(135deg, rgba(243,90,123,0.08), rgba(20,125,137,0.05)); }
.notice strong { display: block; margin-bottom: 8px; color: var(--color-text-primary); }
.feature-list, .stack-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.feature-list li, .stack-list li { padding-left: 18px; position: relative; color: var(--color-text-secondary); }
.feature-list li::before, .stack-list li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent-primary); position: absolute; left: 0; top: .6em; }
.table-wrap { overflow-x: auto; }
.table { width: 100%; min-width: 640px; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 14px 12px; border-bottom: 1px solid var(--color-divider); color: var(--color-text-secondary); vertical-align: top; }
.table th { color: var(--color-text-primary); font-size: 14px; }
.badge { display: inline-flex; padding: 5px 10px; border-radius: 999px; font-size: 12px; background: var(--color-accent-primary-subtle); color: var(--color-accent-primary); }
.badge--high { background: rgba(243,90,123,0.12); color: #b73958; }
.badge--mid { background: rgba(20,125,137,0.12); color: var(--color-accent-primary); }
.badge--low { background: rgba(0,0,0,0.05); color: var(--color-text-secondary); }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease-out, transform .8s ease-out; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.line-draw path, .line-draw line, .line-draw polyline { stroke-dasharray: 1000; stroke-dashoffset: 1000; transition: stroke-dashoffset 1.6s cubic-bezier(0.16, 1, 0.3, 1); }
.line-draw.is-visible path, .line-draw.is-visible line, .line-draw.is-visible polyline { stroke-dashoffset: 0; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--color-accent-primary); outline-offset: 3px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
@media (min-width: 735px) {
  .nav-toggle { display: none; }
  .nav-links { position: static; display: flex !important; flex-direction: row; background: transparent; padding: 0; inset: auto; }
  .nav-links a { font-size: 12px; }
  .hero-grid, .two-col { grid-template-columns: 1.05fr .95fr; }
  .bento-grid .span-2 { grid-column: span 2; }
}
@media (prefers-color-scheme: dark) {
  :root { --color-bg-primary: #0b1214; --color-bg-section-alt: #151c1e; --color-bg-elevated: #1c2426; --color-surface: #1c2426; --color-text-primary: #e8ecec; --color-text-secondary: #99a3a6; --color-text-tertiary: #687275; --color-divider: #2d3638; --color-link: #3ec8d5; --color-link-hover: #5dd8e3; }
  .global-nav { background: rgba(11,18,20,0.78); }
  .nav-links { background: rgba(11,18,20,0.98); }
}