/* Layout: a long field guide that flows like water; numbered stages along a wavy pipeline,
   alternating mist and shallow-water bands, animated diagrams in soft shells. */
:root {
  --bg: #eef4f0;
  --surface: #dfece6;
  --card: #f8fbf8;
  --deep: #123a3d;
  --fg: #1d3534;
  --muted: #557069;
  --line: #c4d6cd;
  --coral: #ec7a5c;
  --apricot: #f4b183;
  --lagoon: #2f8f8a;
  --moss: #7f9a4c;
  --danger: #c4473a;
  --on-accent: #fff8f2;
  --shadow: #1d4a4566;
  --code-bg: #12302f;
  --code-fg: #d9ece5;
  --code-comment: #8fb5a9;
  --blob-a: 0.5;
  --f-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --f-body: "Figtree", "Segoe UI", system-ui, sans-serif;
  --f-mono: "DM Mono", ui-monospace, Menlo, monospace;
  --s-1: 0.8125rem; --s0: 1rem; --s1: 1.2rem; --s2: 1.5rem; --s3: clamp(1.9rem, 4vw, 2.7rem); --s4: clamp(2.6rem, 6.6vw, 4.9rem);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c1f21; --surface: #10292b; --card: #143235; --deep: #e3f1ec; --fg: #dcebe5; --muted: #93b1a8; --line: #24474a;
    --coral: #f08b6e; --apricot: #f2b58c; --lagoon: #5cc0b8; --moss: #a5be6d; --danger: #f07868; --on-accent: #1a1210;
    --shadow: #000000aa; --code-bg: #081617; --code-fg: #d9ece5; --code-comment: #7fa79b; --blob-a: 0.28;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0c1f21; --surface: #10292b; --card: #143235; --deep: #e3f1ec; --fg: #dcebe5; --muted: #93b1a8; --line: #24474a;
  --coral: #f08b6e; --apricot: #f2b58c; --lagoon: #5cc0b8; --moss: #a5be6d; --danger: #f07868; --on-accent: #1a1210;
  --shadow: #000000aa; --code-bg: #081617; --code-fg: #d9ece5; --code-comment: #7fa79b; --blob-a: 0.28;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 20px; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 var(--s0)/1.7 var(--f-body); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
h1, h2, h3 { font-family: var(--f-display); font-variation-settings: "SOFT" 100, "WONK" 1; font-weight: 400; line-height: 1.12; letter-spacing: -0.012em; text-wrap: balance; color: var(--deep); margin: 0; }
p, ul, ol, dl { margin: 0; }
a { color: var(--lagoon); }
code, .mono { font: 400 0.88em/1.5 var(--f-mono); }
p code, li code, span code { background: var(--surface); color: var(--deep); padding: 1px 6px; border-radius: 6px; overflow-wrap: anywhere; }
.alt p code, .alt li code, .alt span code { background: var(--bg); }
b { font-weight: 600; color: var(--deep); }
:focus-visible { outline: 2px solid var(--coral); outline-offset: 3px; border-radius: 8px; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 50; background: var(--deep); color: var(--bg); padding: 10px 16px; border-radius: 999px; text-decoration: none; }
.skip-link:focus { top: 12px; }

.wrap { width: min(1120px, 100%); margin-inline: auto; padding-inline: clamp(16px, 4vw, 40px); }
.label { font: 500 var(--s-1)/1.4 var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--lagoon); }
.where { color: var(--muted); }
.small { font-size: 0.9rem; color: var(--muted); }

/* Blobs */
.pool { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.blob { position: absolute; opacity: var(--blob-a); filter: blur(40px); border-radius: 42% 58% 63% 37% / 41% 44% 56% 59%; animation: morph 22s ease-in-out infinite alternate, drift 30s ease-in-out infinite alternate; }
.blob.b1 { width: 44vmax; height: 38vmax; left: -12vmax; top: -14vmax; background: radial-gradient(circle at 40% 40%, var(--apricot), var(--coral) 70%); }
.blob.b2 { width: 38vmax; height: 34vmax; right: -14vmax; top: 2vmax; background: radial-gradient(circle at 60% 50%, var(--lagoon), transparent 72%); animation-delay: -8s, -12s; }
@keyframes morph { 0% { border-radius: 42% 58% 63% 37% / 41% 44% 56% 59%; } 50% { border-radius: 63% 37% 45% 55% / 55% 62% 38% 45%; } 100% { border-radius: 38% 62% 52% 48% / 62% 38% 62% 38%; } }
@keyframes drift { from { transform: translate(0, 0) rotate(0deg); } to { transform: translate(3vmax, 2vmax) rotate(14deg); } }

/* Header + hero */
.hero { position: relative; isolation: isolate; padding-bottom: clamp(30px, 5vw, 56px); }
.hero > .wrap { position: relative; z-index: 1; }
.site-header { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 24px; padding-block: 22px; }
.mark { display: flex; align-items: center; gap: 10px; font-family: var(--f-display); font-variation-settings: "SOFT" 100, "WONK" 1; font-size: var(--s1); color: var(--deep); text-decoration: none; }
.mark i { width: 24px; height: 24px; display: block; background: linear-gradient(135deg, var(--apricot), var(--coral)); border-radius: 60% 40% 55% 45% / 50% 60% 40% 50%; animation: morph 12s ease-in-out infinite alternate; }
.site-header nav { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-left: auto; font-size: var(--s-1); }
.site-header nav a { color: var(--muted); text-decoration: none; }
.site-header nav a:hover { color: var(--deep); }
.hero-copy { max-width: 780px; padding-block: clamp(26px, 5vw, 60px) clamp(30px, 4vw, 44px); }
.hero h1 { font-size: var(--s4); font-weight: 350; margin-top: 16px; }
.hero h1 em { font-style: italic; color: var(--coral); }
.lede { font-size: var(--s1); color: var(--muted); max-width: 60ch; margin-top: 20px; }

/* Pipeline */
.pipeline { position: relative; overflow-x: auto; padding-block: 8px 14px; scrollbar-width: thin; }
.pipeline ol { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(9, minmax(104px, 1fr)); gap: 8px; position: relative; min-width: 960px; }
.pipe-line { position: absolute; left: 0; top: 30px; width: 960px; min-width: 100%; height: 20px; z-index: 0; }
.pipe-line path { fill: none; stroke: var(--lagoon); stroke-width: 2.5; stroke-dasharray: 2 10; stroke-linecap: round; animation: flow 1.6s linear infinite; opacity: .7; }
@keyframes flow { to { stroke-dashoffset: -24; } }
.pipeline a { position: relative; z-index: 1; display: grid; justify-items: center; text-align: center; gap: 4px; padding: 6px 4px 10px; text-decoration: none; color: var(--fg); border-radius: 26px; transition: background .4s; }
.pipeline a:hover, .pipeline a.active { background: color-mix(in srgb, var(--card) 80%, transparent); }
.pipeline .dot { width: 50px; height: 50px; display: grid; place-items: center; font: 500 1.05rem/1 var(--f-display); color: var(--on-accent); background: var(--lagoon); border-radius: 58% 42% 50% 50% / 45% 55% 45% 55%; box-shadow: 0 10px 24px -14px var(--shadow); transition: transform .6s cubic-bezier(.3,1.6,.5,1), border-radius .8s, background .4s; }
.pipeline li:nth-child(3n+1) .dot { background: var(--coral); }
.pipeline li:nth-child(3n+2) .dot { background: var(--apricot); color: #3a1f12; }
.pipeline li:nth-child(3n) .dot { background: var(--moss); }
.pipeline a:hover .dot, .pipeline a.active .dot { transform: scale(1.12) rotate(-8deg); border-radius: 40% 60% 42% 58% / 60% 40% 60% 40%; }
.pipeline b { font-size: .95rem; }
.pipeline small { font-size: .74rem; color: var(--muted); line-height: 1.3; }

/* Stages */
.stage { padding-block: clamp(56px, 8vw, 100px); }
.stage.alt { background: var(--surface); border-radius: clamp(40px, 8vw, 120px) clamp(40px, 8vw, 120px) clamp(40px, 8vw, 120px) clamp(40px, 8vw, 120px) / 60px 60px 60px 60px; }
.stage-grid { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: clamp(14px, 3vw, 36px); }
.stage-num { width: 72px; height: 72px; display: grid; place-items: center; font: 400 2rem/1 var(--f-display); font-variation-settings: "SOFT" 100, "WONK" 1; color: var(--on-accent); background: linear-gradient(140deg, var(--apricot), var(--coral)); border-radius: 58% 42% 50% 50% / 45% 55% 45% 55%; position: sticky; top: 24px; animation: morph 16s ease-in-out infinite alternate; }
.alt .stage-num { background: linear-gradient(140deg, var(--lagoon), var(--moss)); }
.stage-body { min-width: 0; display: grid; gap: 20px; max-width: 860px; }
.stage-body > p { max-width: 70ch; }
.stage h2, .sec-head h2 { font-size: var(--s3); }
.sec-head { display: grid; gap: 14px; max-width: 760px; margin-bottom: clamp(26px, 4vw, 40px); }
.sec-head p { max-width: 70ch; }

.files { display: grid; gap: 2px; border-radius: 28px; overflow: hidden; }
.files > div { display: grid; grid-template-columns: minmax(0, 260px) minmax(0, 1fr); gap: 18px; padding: 16px 20px; background: var(--card); }
.files > div > code { color: var(--coral); overflow-wrap: anywhere; }
.files > div > code + code { grid-column: 1; margin-top: -14px; }
.files > div > span { color: var(--muted); grid-column: 2; grid-row: 1 / span 2; }

.notes { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); gap: 16px; }
.notes.three { margin-top: 28px; }
.note { padding: 22px 24px; background: var(--card); border-radius: 30px 30px 30px 30px / 26px 26px 36px 36px; display: grid; gap: 8px; transition: border-radius .9s ease, transform .7s cubic-bezier(.2,.9,.3,1); }
.note:hover { border-radius: 40px 22px 40px 22px / 30px 40px 24px 34px; transform: translateY(-3px); }
.note h3 { font-size: 1.2rem; }
.note p { color: var(--muted); font-size: .96rem; }
.alt .note { background: var(--bg); }

.formula { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); gap: 16px; }
.formula > div { padding: 24px; background: var(--bg); border-radius: 50% 50% 46% 54% / 18% 22% 78% 82%; display: grid; gap: 8px; }
.formula p { font: 400 1.35rem/1.3 var(--f-display); font-variation-settings: "SOFT" 100, "WONK" 1; color: var(--deep); }
.formula small { color: var(--muted); }

.options { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 14px; }
.opt { padding: 20px 22px; border-radius: 26px; border: 1.5px solid var(--line); display: grid; gap: 6px; align-content: start; }
.opt h3 { font-size: 1.1rem; display: flex; align-items: center; gap: 10px; }
.opt h3::before { content: ""; width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.opt.good h3::before { background: var(--moss); }
.opt.ok h3::before { background: var(--apricot); }
.opt.bad h3::before { background: var(--danger); }
.opt p { color: var(--muted); font-size: .95rem; }

.code { margin: 0; background: var(--code-bg); color: var(--code-fg); border-radius: 26px; padding: 22px 24px; overflow-x: auto; font: 400 .84rem/1.6 var(--f-mono); max-width: 100%; }
.code code { font: inherit; }
.code .c { color: var(--code-comment); }

.layers { display: grid; gap: 6px; }
.layer { display: grid; grid-template-columns: minmax(0, 230px) minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 14px 20px; border-radius: 999px; background: var(--bg); }
.layer span { color: var(--muted); font-size: .94rem; }
.layer em { font: 500 .72rem/1 var(--f-mono); font-style: normal; letter-spacing: .08em; text-transform: uppercase; padding: 6px 10px; border-radius: 999px; }
.layer.l1 em, .layer.l2 em { background: color-mix(in srgb, var(--coral) 22%, transparent); color: var(--deep); }
.layer.l3 em, .layer.l4 em { background: color-mix(in srgb, var(--lagoon) 22%, transparent); color: var(--deep); }
.layer.l1 { margin-inline: 0 6%; } .layer.l2 { margin-inline: 2% 4%; } .layer.l3 { margin-inline: 4% 2%; } .layer.l4 { margin-inline: 6% 0; }

.comps { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); gap: 14px; }
.comps > div { padding: 20px 22px; background: var(--card); border-radius: 26px; display: grid; gap: 6px; align-content: start; }
.comps h3 { font-size: 1.15rem; }
.comps p { color: var(--muted); font-size: .95rem; }

.seq { list-style: none; padding: 0; display: grid; gap: 10px; counter-reset: s; position: relative; }
.seq::before { content: ""; position: absolute; left: 17px; top: 12px; bottom: 12px; width: 2px; background: linear-gradient(var(--coral), var(--lagoon), var(--moss)); border-radius: 2px; }
.seq li { counter-increment: s; position: relative; padding-left: 54px; color: var(--muted); }
.seq li::before { content: counter(s); position: absolute; left: 0; top: -2px; width: 36px; height: 36px; display: grid; place-items: center; font: 500 .8rem/1 var(--f-mono); color: var(--on-accent); background: var(--lagoon); border-radius: 58% 42% 50% 50% / 45% 55% 45% 55%; }

/* Diagrams */
.diagram-shell { margin-top: 26px; background: var(--card); border-radius: 40px; padding: clamp(16px, 3vw, 28px); display: grid; gap: 14px; box-shadow: 0 30px 60px -44px var(--shadow); }
.alt .diagram-shell { background: var(--bg); }
.diagram-scroll { overflow-x: auto; }
.diagram { display: block; width: 100%; min-width: 760px; height: auto; }
.diagram text { font: 500 14px var(--f-body); fill: var(--deep); text-anchor: middle; pointer-events: none; }
.diagram text.sub { font: 400 10.5px var(--f-mono); fill: var(--muted); }
.diagram text.left { text-anchor: start; font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; fill: var(--muted); }
.diagram .zone { fill: color-mix(in srgb, var(--lagoon) 7%, transparent); stroke: var(--line); stroke-width: 1.5; stroke-dasharray: 6 6; }
.diagram .zone-label { font: 500 11px var(--f-mono); letter-spacing: .08em; fill: var(--muted); text-anchor: start; text-transform: uppercase; }
.diagram .tag { font: 400 11px var(--f-mono); fill: var(--lagoon); text-anchor: start; }
.diagram .flow { fill: none; stroke: var(--coral); stroke-width: 2; stroke-dasharray: 4 6; opacity: .75; }
.diagram .flow.back { stroke: var(--lagoon); }
.diagram .flow.faint { stroke: var(--line); stroke-dasharray: 2 5; opacity: 1; }
.diagram .wire { fill: none; stroke: var(--line); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.diagram .route { fill: none; stroke: none; stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.diagram .route.on { stroke: var(--coral); opacity: .55; }
.node rect, .node circle { fill: var(--card); stroke: var(--line); stroke-width: 1.5; transition: fill .3s, stroke .3s; }
.alt .node rect, .alt .node circle { fill: var(--card); }
.node.gpu rect { fill: color-mix(in srgb, var(--lagoon) 16%, var(--card)); stroke: var(--lagoon); }
.node.inner rect { fill: var(--card); }
.node.kv rect { fill: color-mix(in srgb, var(--coral) 16%, var(--card)); stroke: var(--coral); }
.node.nic rect { fill: color-mix(in srgb, var(--apricot) 26%, var(--card)); stroke: var(--apricot); }
.node.switch circle { fill: color-mix(in srgb, var(--moss) 22%, var(--card)); stroke: var(--moss); }
.node.small text { font-size: 12.5px; }
.node[role="button"] { cursor: pointer; }
.node[role="button"]:hover rect, .node[role="button"]:focus-visible rect { stroke: var(--coral); stroke-width: 2.5; }
.node[role="button"]:focus { outline: none; }
.node.selected rect { stroke: var(--coral); stroke-width: 3; }
.packet.req { fill: var(--coral); }
.packet.tok { fill: var(--lagoon); }
.packet.rdma { fill: var(--coral); stroke: var(--card); stroke-width: 3; }

.legend { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px; font-size: var(--s-1); color: var(--muted); }
.lg { display: inline-block; width: 12px; height: 12px; border-radius: 50%; margin-right: 8px; vertical-align: -1px; }
.lg.req { background: var(--coral); } .lg.tok { background: var(--lagoon); }
.pill-btn { font: 500 var(--s-1)/1 var(--f-body); color: var(--deep); background: transparent; border: 1.5px solid var(--line); border-radius: 999px; padding: 9px 15px; cursor: pointer; transition: border-color .3s, background .3s, border-radius .6s; }
.pill-btn:hover { border-color: var(--coral); }
.pill-btn[aria-pressed="true"] { background: var(--coral); border-color: var(--coral); color: var(--on-accent); }
.legend .pill-btn { margin-left: auto; }
.tabs { display: flex; flex-wrap: wrap; gap: 8px; }

.detail { display: grid; gap: 8px; padding: 20px 24px; border-radius: 28px; background: var(--surface); min-height: 140px; }
.alt .detail { background: var(--card); }
.detail h3 { font-size: 1.35rem; }
.detail p { color: var(--muted); max-width: 80ch; }
.detail .where-line { font: 400 var(--s-1)/1.5 var(--f-mono); color: var(--lagoon); }

.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 28px; }
.two-col > div { min-width: 0; display: grid; gap: 10px; align-content: start; }
.mini { font-size: 1.15rem; }
.phases { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 18px; }
.phases > div { padding: 24px; border-radius: 30px; border: 1.5px solid var(--line); display: grid; gap: 8px; }
.phases h3 { font-size: 1.3rem; }
.phases p { color: var(--muted); }

/* KV cache */
.kv-shell { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 24px; align-items: start; background: var(--bg); border-radius: 40px; padding: clamp(18px, 3vw, 30px); }
.kv-pool { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 6px; }
.kv-block { aspect-ratio: 1.4; border-radius: 10px; background: var(--surface); border: 1.5px dashed var(--line); position: relative; overflow: hidden; transition: background .4s, border-color .4s, border-radius .6s; }
.kv-block.used { border-style: solid; border-color: transparent; border-radius: 14px 8px 14px 8px; }
.kv-block .fill { position: absolute; inset: auto 0 0 0; background: rgba(255,255,255,.35); transition: height .3s; }
.kv-block.shared { background-image: repeating-linear-gradient(45deg, transparent 0 5px, rgba(255,255,255,.35) 5px 9px); }
.kv-block.pop { animation: pop .5s cubic-bezier(.3,1.6,.5,1); }
@keyframes pop { from { transform: scale(.6); } }
.kv-side { display: grid; gap: 16px; min-width: 0; }
.kv-legend { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: var(--s-1); color: var(--muted); }
.kv-legend i { display: inline-block; width: 14px; height: 14px; border-radius: 5px; margin-right: 6px; vertical-align: -2px; }
.kv-legend i.shared { background: repeating-linear-gradient(45deg, var(--coral) 0 4px, var(--lagoon) 4px 8px); }
.kv-legend i.free { border: 1.5px dashed var(--line); }
.kv-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.kv-stats div { background: var(--card); border-radius: 20px; padding: 12px 16px; }
.kv-stats dt { font: 500 .72rem/1.3 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.kv-stats dd { margin: 4px 0 0; font: 400 1.4rem/1.1 var(--f-display); color: var(--deep); font-variant-numeric: tabular-nums; }
.kv-log { min-height: 3.4em; color: var(--deep); }
.kv-controls { display: flex; gap: 8px; }
.pill-btn.ghost { color: var(--muted); }

/* Memory */
.tiers { display: grid; gap: 8px; }
.tier { display: grid; grid-template-columns: minmax(0, 250px) minmax(0, 1fr); gap: 4px 22px; padding: 18px 24px; border-radius: 999px 999px 999px 999px / 60px 60px 60px 60px; background: var(--card); }
.tier b { font-family: var(--f-display); font-variation-settings: "SOFT" 100, "WONK" 1; font-weight: 400; font-size: 1.2rem; }
.tier span { font: 400 var(--s-1)/1.5 var(--f-mono); color: var(--lagoon); grid-column: 1; }
.tier p { grid-column: 2; grid-row: 1 / span 2; color: var(--muted); align-self: center; }
.tier.t1 { margin-inline: 0 0; } .tier.t2 { margin-inline: 3% 0; } .tier.t3 { margin-inline: 6% 0; } .tier.t4 { margin-inline: 9% 0; }
.tier.t1 b { color: var(--coral); }

.calc { margin-top: 30px; padding: clamp(20px, 4vw, 36px); border-radius: 40px; background: var(--surface); display: grid; gap: 18px; }
.calc h3 { font-size: var(--s2); display: flex; align-items: baseline; gap: 12px; }
.calc-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(190px, 100%), 1fr)); gap: 14px; }
.calc-form label { display: grid; gap: 6px; font: 500 .72rem/1.3 var(--f-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); min-width: 0; }
.calc-form select, .calc-form input[type="range"] { width: 100%; }
.calc-form select { font: 400 var(--s0)/1.3 var(--f-body); color: var(--fg); background: var(--card); border: 1.5px solid var(--line); border-radius: 16px; padding: 11px 12px; text-transform: none; letter-spacing: 0; }
.calc-form input[type="range"] { accent-color: var(--coral); margin-top: 10px; }
.calc-form output { font: 400 1.2rem/1 var(--f-display); color: var(--deep); text-transform: none; }
.bar { display: flex; height: 34px; border-radius: 999px; overflow: hidden; background: var(--card); }
.bar .seg { height: 100%; transition: width .6s cubic-bezier(.2,.8,.2,1); min-width: 0; }
.bar .w, .bar-key i.w { background: var(--lagoon); }
.bar .o, .bar-key i.o { background: var(--apricot); }
.bar .k, .bar-key i.k { background: var(--coral); }
.bar .f, .bar-key i.f { background: color-mix(in srgb, var(--moss) 45%, var(--card)); }
.bar.over .k { background: repeating-linear-gradient(45deg, var(--danger) 0 8px, var(--coral) 8px 16px); }
.bar-key { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: var(--s-1); color: var(--muted); }
.bar-key i { display: inline-block; width: 12px; height: 12px; border-radius: 50%; margin-right: 6px; vertical-align: -1px; }
.verdict { font: 400 1.25rem/1.4 var(--f-display); font-variation-settings: "SOFT" 100, "WONK" 1; color: var(--deep); }
.verdict.bad { color: var(--danger); }
.calc-out { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr)); gap: 10px; }
.calc-out div { background: var(--card); border-radius: 20px; padding: 12px 16px; }
.calc-out dt { font: 500 .72rem/1.3 var(--f-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); }
.calc-out dd { margin: 4px 0 0; font: 500 1.05rem/1.3 var(--f-mono); color: var(--deep); font-variant-numeric: tabular-nums; }

/* Tests + operate */
.checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 16px; }
.check { padding: 22px 24px; background: var(--card); border-radius: 30px; display: grid; gap: 10px; align-content: start; }
.check h3 { font-size: 1.2rem; }
.check ul { list-style: none; padding: 0; display: grid; gap: 8px; }
.check li { position: relative; padding-left: 26px; color: var(--muted); font-size: .95rem; }
.check li::before { content: ""; position: absolute; left: 0; top: .45em; width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--moss); }
.check li::after { content: ""; position: absolute; left: 5px; top: calc(.45em + 3px); width: 4px; height: 7px; border: solid var(--moss); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.signals { display: grid; gap: 8px; }
.signals > div { display: grid; grid-template-columns: minmax(0, 300px) minmax(0, 1fr); gap: 16px; align-items: center; padding: 14px 20px; background: var(--bg); border-radius: 22px; }
.signals > div > code, .signals > div > .mono { color: var(--coral); overflow-wrap: anywhere; background: none; padding: 0; }
.signals p { color: var(--muted); font-size: .95rem; }

.sources { padding-block: clamp(50px, 7vw, 80px) 20px; }
.sources h2 { font-size: var(--s2); }
.sources ul { list-style: none; padding: 0; margin-top: 16px; display: flex; flex-wrap: wrap; gap: 10px; }
.sources li a { display: inline-block; padding: 9px 16px; border-radius: 999px; background: var(--card); text-decoration: none; color: var(--deep); font-size: .92rem; transition: border-radius .6s, background .3s; }
.sources li a:hover { border-radius: 40% 60% 50% 50% / 60% 50% 50% 40%; background: var(--surface); }
.sources .small { margin-top: 18px; }
.site-footer { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 14px 28px; padding-block: 30px 52px; font-size: var(--s-1); }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--deep); }

@media (max-width: 860px) {
  .stage-grid { grid-template-columns: 1fr; }
  .stage-num { position: static; width: 56px; height: 56px; font-size: 1.5rem; }
  .two-col, .phases, .kv-shell { grid-template-columns: 1fr; }
  .files > div, .tier, .signals > div { grid-template-columns: 1fr; border-radius: 26px; }
  .files > div > span, .tier p { grid-column: 1; grid-row: auto; }
  .files > div > code + code { margin-top: -10px; }
  .layer { grid-template-columns: 1fr auto; border-radius: 26px; margin-inline: 0 !important; }
  .layer span { grid-column: 1 / -1; grid-row: 2; }
  .tier { margin-inline: 0 !important; }
  .site-header nav a:not(:last-child) { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}