:root{--bg: #050505;--bg-soft: #0d0d0f;--panel: rgba(14, 14, 17, .92);--panel-strong: rgba(19, 19, 24, .98);--line: rgba(255, 255, 255, .09);--text: #f5f7fb;--muted: #9a9faa;--accent: #f4f7fb;--accent-strong: #7cf2c3;--warn: #d7ff64;--shadow: 0 24px 80px rgba(0, 0, 0, .48)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Space Grotesk,system-ui,sans-serif;color:var(--text);background:radial-gradient(circle at top left,rgba(124,242,195,.08),transparent 25%),radial-gradient(circle at 85% 10%,rgba(255,255,255,.06),transparent 18%),linear-gradient(180deg,#030303,#080809 46%,#050506);min-height:100vh}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.shell{width:min(1180px,calc(100% - 2rem));margin:0 auto}.site-header{position:sticky;top:0;z-index:10;backdrop-filter:blur(18px);background:#060608d1;border-bottom:1px solid var(--line)}.site-header .shell,.site-footer 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1.1rem;color:var(--muted);background:#08080ae0}.code-block{overflow-x:auto;padding:1rem;background:#010102db;border-radius:1rem;border:1px solid var(--line);font-family:IBM Plex Mono,monospace;color:#dff8ef}.site-footer{border-top:1px solid var(--line);color:var(--muted)}.presentation-shell{min-height:100vh;padding:2.5rem 0 4rem}.deck-page{background:radial-gradient(circle at top,rgba(124,242,195,.08),transparent 18%),linear-gradient(180deg,#030303,#09090a 55%,#040404)}.deck-topbar{position:sticky;top:1rem;z-index:6;display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.5rem;padding:1rem 1.1rem;border:1px solid var(--line);border-radius:1rem;background:#08080ad6;backdrop-filter:blur(16px)}.deck-nav{display:flex;gap:.6rem;flex-wrap:wrap}.deck-nav a{padding:.45rem .7rem;border-radius:999px;border:1px solid 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h1{font-size:clamp(2.4rem,12vw,4rem)}}