@font-face { font-family: 'Fraunces'; font-style: normal; font-weight: 300 600; font-display: swap; src: url(../fonts/fraunces-latin.woff2) format('woff2'); }
@font-face { font-family: 'Inter'; font-style: normal; font-weight: 300 600; font-display: swap; src: url(../fonts/inter-latin.woff2) format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url(../fonts/jetbrains-mono-latin-400.woff2) format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url(../fonts/jetbrains-mono-latin-500.woff2) format('woff2'); }
:root {
--bg:         oklch(8% 0.002 260);
--bg-card:    oklch(12% 0.003 260);
--surface:    oklch(14% 0.003 260);
--fg:         oklch(96% 0.002 260);
--fg-bright:  oklch(99% 0 0);
--muted:      oklch(58% 0.004 260);
--faint:      oklch(60% 0.003 260);
--border:     oklch(28% 0.003 260);
--border-hi:  oklch(50% 0.004 260);
--accent:     oklch(96% 0.002 260);
--font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
--font-body:    'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
--font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
--fs-h1:    clamp(40px, 5.5vw, 64px);
--fs-h2:    clamp(28px, 3.5vw, 40px);
--fs-h3:    20px;
--fs-lead:  20px;
--fs-body:  18px;
--fs-meta:  13px;
--fs-micro: 12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-body);font-size:var(--fs-body);line-height:1.7;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:inherit}
p{text-wrap:pretty;margin:0 0 1.4rem}
h1,h2,h3{text-wrap:balance;margin:0}
.top{position:sticky;top:0;z-index:20;backdrop-filter:blur(12px);background:oklch(8% 0.002 260 / 0.75);border-bottom:1px solid var(--border)}
.top-inner{max-width:54rem;margin:0 auto;padding:0.95rem 1.35rem;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.top a{text-decoration:none;font-family:var(--font-mono);font-size:var(--fs-meta);letter-spacing:0.12em;text-transform:uppercase;color:var(--faint)}
.top a:hover{color:var(--fg-bright)}
.brand{font-family:var(--font-display);font-size:14px;font-weight:400;letter-spacing:0.02em;color:var(--fg-bright) !important;text-transform:none}
article{max-width:54rem;margin:0 auto;padding:2.75rem 1.35rem 4.5rem}
.meta{font-family:var(--font-mono);font-size:var(--fs-meta);letter-spacing:0.12em;text-transform:uppercase;color:var(--muted);margin-bottom:0.85rem}
.series{font-family:var(--font-mono);font-size:var(--fs-micro);letter-spacing:0.16em;text-transform:uppercase;color:oklch(72% 0.08 230);margin-bottom:0.55rem}
h1{font-family:var(--font-display);font-size:var(--fs-h1);line-height:1;letter-spacing:-0.03em;font-weight:400;margin:0 0 1.15rem}
.deck{font-size:var(--fs-lead);line-height:1.65;color:var(--muted);margin:0 0 2rem}
.hero-media,.fig{margin:1.5rem 0 1.75rem;border-radius:12px;overflow:hidden;border:1px solid var(--border);background:var(--bg-card)}
.hero-media img,.hero-media video,.fig img,.fig video{display:block;width:100%;height:auto;max-width:100%;object-fit:contain}
.fig-cap{font-family:var(--font-mono);font-size:var(--fs-micro);letter-spacing:0.03em;color:var(--muted);padding:0.75rem 0.95rem;border-top:1px solid var(--border);line-height:1.55}
h2{font-family:var(--font-display);font-size:var(--fs-h2);line-height:1.15;letter-spacing:-0.02em;font-weight:400;margin:2.75rem 0 1rem}
h3{font-family:var(--font-body);font-size:var(--fs-h3);font-weight:500;letter-spacing:-0.005em}
ul{margin:0 0 1.4rem;padding-left:1.25rem}
li{margin:0 0 0.65rem;line-height:1.6}
.callout{margin:1.75rem 0;padding:1.15rem 1.3rem;border-left:2px solid oklch(72% 0.08 230 / 0.55);background:oklch(72% 0.08 230 / 0.06);border-radius:0 8px 8px 0;color:var(--fg);font-size:1.1rem;line-height:1.7}
.links{display:flex;flex-wrap:wrap;gap:1rem;margin:2rem 0 1.5rem}
.links a{font-family:var(--font-mono);font-size:var(--fs-micro);letter-spacing:0.12em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--border);padding-bottom:0.15rem}
.links a:hover{color:var(--fg-bright)}
.more{margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid var(--border)}
.more h3{font-family:var(--font-display);font-weight:400;font-size:1.1rem;margin:0 0 0.85rem;color:var(--muted)}
.more a{display:block;text-decoration:none;font-size:1.05rem;margin:0.4rem 0;color:var(--fg)}
.more a:hover{color:var(--fg-bright)}
footer{max-width:54rem;margin:0 auto;padding:0 1.35rem 3rem;font-size:0.9rem;color:var(--muted)}
code{font-family:var(--font-mono);font-size:0.86em;background:oklch(20% 0.003 260);padding:0.1em 0.35em;border-radius:4px}
a.ext{color:oklch(72% 0.08 230);text-decoration:none;border-bottom:1px solid oklch(72% 0.08 230 / 0.25)}
a.ext:hover{color:var(--fg-bright);border-bottom-color:var(--border-hi)}
.lang-switch{position:fixed;top:14px;right:16px;z-index:110;display:flex;align-items:center;gap:0.1rem;padding:0.25rem;background:oklch(8% 0.002 260 / 0.9);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:8px}
.lang-switch button{appearance:none;border:1px solid transparent;background:transparent;color:var(--muted);font-family:var(--font-mono);font-size:var(--fs-micro);letter-spacing:0.08em;text-transform:uppercase;padding:0.3rem 0.45rem;border-radius:4px;cursor:pointer;line-height:1}
.lang-switch button:hover{color:var(--fg-bright)}
.lang-switch button.active{color:var(--fg-bright);border-color:var(--border-hi);background:oklch(20% 0.003 260)}
@media(max-width:720px){.lang-switch{top:12px;right:auto;left:12px}}
[data-lang-block][hidden]{display:none !important}
.series-nav{display:grid;gap:0.65rem;margin:2.5rem 0 1.5rem;padding:1.15rem;border:1px solid var(--border);border-radius:12px;background:var(--surface)}
.series-nav a{text-decoration:none;font-size:0.92rem;color:var(--fg)}
.series-nav a:hover{color:var(--fg-bright)}
.series-nav .current{color:oklch(72% 0.08 230)}
.series-nav span{display:block;font-family:var(--font-mono);font-size:var(--fs-micro);letter-spacing:0.12em;text-transform:uppercase;color:var(--muted);margin-bottom:0.2rem}
.lib-list{list-style:none;padding:0;margin:0 0 1.5rem}
.lib-list li{margin:0 0 0.55rem;padding:0.55rem 0.75rem;border:1px solid var(--border);border-radius:8px;background:var(--surface)}
.lib-list a{color:oklch(72% 0.08 230);text-decoration:none;font-weight:500}
.lib-list span{display:block;font-size:0.88rem;color:var(--muted);margin-top:0.2rem}
.pipeline{margin:1.5rem 0 2rem;padding:1.15rem;border:1px solid var(--border);border-radius:12px;background:var(--surface)}
.pipeline-title{font-family:var(--font-mono);font-size:var(--fs-micro);letter-spacing:0.16em;text-transform:uppercase;color:oklch(72% 0.08 230);margin:0 0 1rem}
.pipeline-flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:0.5rem}
.pipe-step{flex:1 1 100px;min-width:90px;padding:0.75rem;border-radius:10px;border:1px solid oklch(72% 0.08 230 / 0.2);background:oklch(72% 0.08 230 / 0.05)}
.pipe-step .n{font-family:var(--font-mono);font-size:var(--fs-micro);letter-spacing:0.08em;color:oklch(72% 0.08 230);margin-bottom:0.3rem}
.pipe-step .t{font-size:0.95rem;color:var(--fg);margin-bottom:0.25rem}
.pipe-step .d{font-size:0.85rem;color:var(--muted);line-height:1.45}
.pipe-arrow{display:flex;align-items:center;color:var(--muted);font-size:1.1rem;padding:0 0.15rem}
.lib-chips{display:flex;flex-wrap:wrap;gap:0.5rem;margin:0 0 1.5rem}
.lib-chips a{font-size:0.82rem;letter-spacing:0.02em;text-decoration:none;color:oklch(72% 0.08 230);border:1px solid var(--border);border-radius:999px;padding:0.28rem 0.65rem;background:var(--surface)}
.lib-chips a:hover{border-color:oklch(72% 0.08 230 / 0.4);color:var(--fg-bright)}
table{width:100%;border-collapse:collapse;margin:0 0 1.5rem;font-size:1rem}
th,td{text-align:left;padding:0.6rem 0.7rem;border-bottom:1px solid var(--border);color:var(--fg);line-height:1.55}
th{font-family:var(--font-mono);font-size:var(--fs-meta);letter-spacing:0.12em;text-transform:uppercase;color:var(--muted);font-weight:500}