/* net_backend — black & white, Ferris orange, rust brown. Dark first, real light mode. */
@font-face { font-family: "Space Grotesk"; src: url("../fonts/space-grotesk-var.woff2") format("woff2"); font-weight: 300 700; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("../fonts/jetbrains-mono-var.woff2") format("woff2"); font-weight: 100 800; font-display: swap; }

:root {
  --bg: #0b0a09; --bg-2: #12100e; --card: #171412; --card-2: #1d1916;
  --line: rgba(244, 236, 226, .09); --line-2: rgba(244, 236, 226, .16);
  --text: #f4eee6; --text-2: #cfc6bb; --muted: #988d82; --faint: #645b53;
  --orange: #ff6a13; --orange-2: #ffa21a; --orange-text: #ff8a3d; --rust: #a3421c; --rust-2: #5c2410;
  --on-orange: #160900; --code-bg: #0f0d0c; --glow: rgba(255, 106, 19, .35);
  --sans: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --radius: 14px; --gutter: clamp(16px, 4vw, 40px); --max: 1180px;
  --ease: cubic-bezier(.2, .9, .2, 1);
  /* syntax */
  --tk-kw: #ff8a3d; --tk-str: #e3c28a; --tk-num: #f6a35b; --tk-com: #6f665e; --tk-fn: #f7efe5; --tk-ty: #ffb27a; --tk-key: #ffc796; --tk-op: #b9aea3;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f7f4ef; --bg-2: #efe9e1; --card: #ffffff; --card-2: #f6f1ea;
  --line: rgba(20, 17, 15, .1); --line-2: rgba(20, 17, 15, .18);
  --text: #15110e; --text-2: #3a322b; --muted: #685d53; --faint: #9a8f85;
  --orange: #e2520f; --orange-2: #f08a12; --orange-text: #b8400b; --rust: #8a3414; --rust-2: #e9d6c9;
  --on-orange: #ffffff; --code-bg: #fbf8f4; --glow: rgba(226, 82, 15, .2);
  --tk-kw: #b8400b; --tk-str: #7a5a12; --tk-num: #a3420c; --tk-com: #8f857c; --tk-fn: #15110e; --tk-ty: #8a3414; --tk-key: #8a3414; --tk-op: #5c524a;
  color-scheme: light;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f7f4ef; --bg-2: #efe9e1; --card: #ffffff; --card-2: #f6f1ea;
    --line: rgba(20, 17, 15, .1); --line-2: rgba(20, 17, 15, .18);
    --text: #15110e; --text-2: #3a322b; --muted: #685d53; --faint: #9a8f85;
    --orange: #e2520f; --orange-2: #f08a12; --orange-text: #b8400b; --rust: #8a3414; --rust-2: #e9d6c9;
    --on-orange: #ffffff; --code-bg: #fbf8f4; --glow: rgba(226, 82, 15, .2);
    --tk-kw: #b8400b; --tk-str: #7a5a12; --tk-num: #a3420c; --tk-com: #8f857c; --tk-fn: #15110e; --tk-ty: #8a3414; --tk-key: #8a3414; --tk-op: #5c524a;
    color-scheme: light;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 84px; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 16.5px/1.65 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: var(--orange-text); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--orange); color: var(--on-orange); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; padding: 10px 14px; border-radius: 8px; background: var(--orange); color: var(--on-orange); font-weight: 600; }
.skip:focus { top: 12px; }
code, kbd, pre { font-family: var(--mono); }
:not(pre) > code { font-size: .86em; padding: .12em .38em; border-radius: 6px; background: var(--card-2); border: 1px solid var(--line); color: var(--text); white-space: break-spaces; overflow-wrap: anywhere; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------------- top bar ---------------- */
.topbar { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 78%, transparent); backdrop-filter: blur(14px) saturate(1.2); -webkit-backdrop-filter: blur(14px) saturate(1.2); border-bottom: 1px solid var(--line); }
.topbar-inner { max-width: 1320px; margin: 0 auto; padding: 0 var(--gutter); height: 64px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font: 600 17px var(--mono); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand b { color: var(--orange); }
.brand img { color: var(--text); }
.topnav { display: flex; gap: 4px; margin-left: auto; }
.topnav a { padding: 8px 12px; border-radius: 8px; color: var(--text-2); font-size: 14.5px; font-weight: 500; }
.topnav a:hover { color: var(--text); background: var(--card); text-decoration: none; }
.topnav a[aria-current="page"] { color: var(--text); background: var(--card); box-shadow: inset 0 -2px 0 var(--orange); }
.topbar-tools { display: flex; gap: 6px; }
.icon-btn { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line); background: transparent; color: var(--text-2); cursor: pointer; }
.icon-btn:hover { color: var(--text); border-color: var(--line-2); text-decoration: none; }
.icon-btn svg { width: 19px; height: 19px; }
.theme-toggle .i-moon { display: none; }
:root[data-theme="light"] .theme-toggle .i-sun { display: none; }
:root[data-theme="light"] .theme-toggle .i-moon { display: block; }
@media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) .theme-toggle .i-sun { display: none; } :root:not([data-theme="dark"]) .theme-toggle .i-moon { display: block; } }
.menu-toggle { display: none; }

/* ---------------- buttons, labels ---------------- */
.btn { display: inline-flex; align-items: center; gap: 10px; height: 48px; padding: 0 22px; border-radius: 12px; font: 600 15px var(--sans); letter-spacing: -.005em; border: 1px solid transparent; transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .2s, border-color .2s; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: linear-gradient(180deg, var(--orange-2), var(--orange)); color: var(--on-orange); box-shadow: 0 10px 30px -12px var(--glow), inset 0 1px 0 rgba(255, 255, 255, .25); }
.btn-primary:hover { box-shadow: 0 16px 40px -12px var(--glow), inset 0 1px 0 rgba(255, 255, 255, .25); }
.btn-ghost { border-color: var(--line-2); color: var(--text); background: color-mix(in srgb, var(--bg) 60%, transparent); }
.btn-ghost:hover { border-color: var(--orange); }
.kicker { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 14px; font: 500 12.5px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.kicker b { color: var(--orange-text); font-weight: 600; }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-2); font: 500 12.5px var(--mono); color: var(--text-2); background: color-mix(in srgb, var(--card) 70%, transparent); }
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 10px var(--orange); }

/* ---------------- sections ---------------- */
.section { position: relative; padding: clamp(72px, 11vh, 128px) 0; }
.section-head { max-width: 760px; margin-bottom: clamp(30px, 5vh, 52px); }
.h1, .h2 { margin: 0; letter-spacing: -.035em; text-wrap: balance; }
.h1 { font: 700 clamp(2.5rem, 6vw, 4.6rem)/1.02 var(--sans); }
.h2 { font: 700 clamp(2rem, 4.2vw, 3.2rem)/1.06 var(--sans); }
.h1 em, .h2 em { font-style: normal; color: var(--orange-text); }
.lede { margin: 18px 0 0; font-size: clamp(1.05rem, 1.3vw, 1.2rem); line-height: 1.6; color: var(--text-2); max-width: 44em; }
.muted { color: var(--muted); }

/* ---------------- home: hero + 3D ---------------- */
.scene { position: fixed; inset: 0; width: 100vw; height: 100lvh; z-index: -1; /* inside <main>: below its content */ pointer-events: none; display: block; opacity: 0; transition: opacity 1.2s ease; }
.scene.on { opacity: 1; }
.page-home main, .page-home .footer { position: relative; z-index: 1; }
.page-home .topbar { z-index: 50; }
.hero { min-height: calc(100svh - 64px); display: flex; align-items: center; padding: clamp(40px, 8vh, 90px) 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); gap: clamp(28px, 4vw, 64px); align-items: center; }
.hero .h1 { margin-top: 22px; }
.hero-grid > .term { align-self: end; margin-bottom: 8px; }
.hero .h1 .mono { font-family: var(--mono); font-weight: 600; letter-spacing: -.05em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 30px; font: 13px var(--mono); color: var(--muted); }
.hero-meta span::before { content: "▸ "; color: var(--orange); }
.term { border-radius: var(--radius); border: 1px solid var(--line-2); background: color-mix(in srgb, var(--code-bg) 92%, transparent); box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .7), 0 0 0 1px rgba(255, 255, 255, .02), 0 0 70px -40px var(--glow); overflow: hidden; backdrop-filter: blur(8px); }
.term-bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; border-bottom: 1px solid var(--line); font: 12px var(--mono); color: var(--muted); }
.term-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-2); }
.term-bar i:nth-child(1) { background: var(--orange); } .term-bar i:nth-child(2) { background: var(--rust); }
.term-bar span { margin-left: 8px; }
.term pre { margin: 0; padding: 18px 18px 20px; font-size: 13.5px; line-height: 1.75; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--text-2); }
.term .p { color: var(--orange); }
.term .c { color: var(--faint); }
.term .o { color: var(--text); }

/* ---------------- four paths ---------------- */
.paths { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 18px; align-items: start; }
.path-list { display: flex; flex-direction: column; gap: 8px; }
.path-btn { position: relative; display: grid; grid-template-columns: 40px 1fr; gap: 4px 14px; align-items: center; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--line); background: color-mix(in srgb, var(--card) 85%, transparent); color: var(--text); text-align: left; cursor: pointer; font: inherit; transition: border-color .2s, background .2s, transform .3s var(--ease); }
.path-btn:hover { border-color: var(--line-2); }
.path-btn[aria-selected="true"] { border-color: var(--orange); background: color-mix(in srgb, var(--orange) 9%, var(--card)); box-shadow: 0 0 0 1px var(--orange), 0 14px 40px -24px var(--glow); }
.path-btn .n { grid-row: span 2; width: 40px; height: 40px; display: grid; place-items: center; border-radius: 10px; background: var(--bg-2); border: 1px solid var(--line); font: 600 13px var(--mono); color: var(--orange-text); }
.path-btn .n img { width: 24px; height: 24px; }
.path-btn strong { font-size: 15px; font-weight: 600; }
.path-btn small { color: var(--muted); font-size: 13px; line-height: 1.35; }
.path-panel { padding: 26px; border-radius: var(--radius); border: 1px solid var(--line-2); background: color-mix(in srgb, var(--card) 90%, transparent); min-height: 100%; }
.path-panel h3 { margin: 0 0 4px; font-size: 1.35rem; letter-spacing: -.02em; }
.path-panel .who { margin: 0 0 16px; color: var(--muted); font: 13px var(--mono); }
.path-panel p { color: var(--text-2); }
.path-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.chip { display: inline-flex; align-items: center; gap: 7px; padding: 7px 12px; border-radius: 9px; border: 1px solid var(--line-2); font: 500 13px var(--mono); color: var(--text-2); }
.chip:hover { border-color: var(--orange); color: var(--text); text-decoration: none; }
.chip svg { width: 15px; height: 15px; }
.same-server { margin-top: 18px; padding: 12px 16px; border-radius: 10px; border: 1px dashed var(--line-2); font: 13px var(--mono); color: var(--muted); }
.same-server b { color: var(--orange-text); font-weight: 600; }

/* ---------------- diagram ---------------- */
.diagram { border-radius: calc(var(--radius) + 6px); border: 1px solid var(--line); background: radial-gradient(80% 90% at 50% 40%, color-mix(in srgb, var(--orange) 7%, transparent), transparent 70%), color-mix(in srgb, var(--card) 70%, transparent); padding: clamp(14px, 3vw, 34px); }
.diagram svg { width: 100%; height: auto; }
.diagram-note { margin: clamp(10px, 2vw, 18px) 4px 0; font: 400 14px/1.6 var(--mono); color: var(--text-2); }
.diagram-note b { color: var(--orange-text); font-weight: 600; }
.diagram-note span { display: block; color: var(--muted); font-size: 13px; }
.diagram .box { fill: var(--card); stroke: var(--line-2); stroke-width: 1.5; }
.diagram .box-hot { fill: color-mix(in srgb, var(--orange) 10%, var(--card)); stroke: var(--orange); stroke-width: 1.8; }
.diagram .proto { fill: color-mix(in srgb, var(--rust) 22%, var(--card)); stroke: var(--rust); stroke-width: 1.6; }
.diagram .t { fill: var(--text); font: 600 15px var(--mono); }
.diagram .ts { fill: var(--text-2); font: 400 13px var(--mono); }
.diagram .tm { fill: var(--muted); font: 500 11.5px var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.diagram .to { fill: var(--orange-text); font: 600 13px var(--mono); }
.diagram .wire { stroke: var(--orange); stroke-width: 2.4; fill: none; stroke-dasharray: 7 7; animation: flow 1.2s linear infinite; }
.diagram .wire-b { stroke: var(--rust); stroke-width: 2; fill: none; stroke-dasharray: 5 6; animation: flow 1.6s linear infinite reverse; }
.diagram .head { fill: var(--orange); }
@keyframes flow { to { stroke-dashoffset: -28; } }

/* ---------------- feature grid ---------------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.card { position: relative; padding: 22px; border-radius: var(--radius); border: 1px solid var(--line); background: color-mix(in srgb, var(--card) 88%, transparent); transition: border-color .3s, transform .45s var(--ease); }
.card:hover { border-color: color-mix(in srgb, var(--orange) 55%, transparent); transform: translateY(-2px); }
.card h3 { margin: 12px 0 6px; font-size: 1.1rem; letter-spacing: -.015em; }
.card p { margin: 0; color: var(--text-2); font-size: .95rem; }
.card .ico { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; background: color-mix(in srgb, var(--orange) 12%, transparent); border: 1px solid color-mix(in srgb, var(--orange) 35%, transparent); color: var(--orange-text); }
.card .ico svg { width: 20px; height: 20px; }
.card .tag { position: absolute; top: 20px; right: 20px; font: 500 11px var(--mono); color: var(--muted); }

/* ---------------- split: code + text ---------------- */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(26px, 4vw, 56px); align-items: center; }
.checks { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 30px; color: var(--text-2); }
.checks li::before { content: ""; position: absolute; left: 0; top: .35em; width: 18px; height: 18px; border-radius: 6px; background: color-mix(in srgb, var(--orange) 14%, transparent); border: 1px solid var(--orange); }
.checks li::after { content: ""; position: absolute; left: 6px; top: calc(.35em + 4px); width: 6px; height: 9px; border: solid var(--orange-text); border-width: 0 2px 2px 0; transform: rotate(45deg); }

/* ---------------- stats strip ---------------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--line); }
.stat { padding: 24px; background: color-mix(in srgb, var(--card) 94%, transparent); }
.stat b { display: block; font: 700 clamp(1.6rem, 3vw, 2.3rem)/1.05 var(--sans); letter-spacing: -.03em; }
.stat b em { font-style: normal; color: var(--orange-text); }
.stat span { display: block; margin-top: 8px; color: var(--muted); font-size: .9rem; line-height: 1.45; }
.fine { margin-top: 12px; font: 12.5px var(--mono); color: var(--faint); }

/* ---------------- band ---------------- */
.band { border-radius: calc(var(--radius) + 8px); border: 1px solid color-mix(in srgb, var(--orange) 40%, var(--line)); padding: clamp(28px, 5vw, 56px); background:
  radial-gradient(70% 120% at 100% 0%, color-mix(in srgb, var(--orange) 18%, transparent), transparent 60%),
  radial-gradient(60% 100% at 0% 100%, color-mix(in srgb, var(--rust) 22%, transparent), transparent 60%),
  color-mix(in srgb, var(--card) 92%, transparent); display: grid; grid-template-columns: minmax(0, 1.3fr) auto; gap: 26px; align-items: center; }
.band .actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------------- code blocks ---------------- */
.code { position: relative; margin: 18px 0; border-radius: 12px; border: 1px solid var(--line); background: var(--code-bg); overflow: hidden; }
.code-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 7px 8px 7px 14px; border-bottom: 1px solid var(--line); font: 500 11.5px var(--mono); color: var(--muted); letter-spacing: .04em; }
.copy-btn { display: inline-flex; align-items: center; gap: 6px; padding: 4px 9px; border-radius: 7px; border: 1px solid var(--line-2); background: transparent; color: var(--text-2); font: 500 11.5px var(--mono); cursor: pointer; }
.copy-btn:hover { border-color: var(--orange); color: var(--text); }
.copy-btn svg { width: 13px; height: 13px; }
pre.hl { margin: 0; padding: 16px 18px; overflow-x: auto; font-size: 13.4px; line-height: 1.7; color: var(--text-2); tab-size: 4; }
pre.hl code { font: inherit; background: none; border: 0; padding: 0; white-space: pre; }
.hl .k, .hl .kd, .hl .kn, .hl .kr, .hl .kp, .hl .kc { color: var(--tk-kw); }
.hl .kt, .hl .nc, .hl .nn, .hl .bp { color: var(--tk-ty); }
.hl .s, .hl .s1, .hl .s2, .hl .sb, .hl .sc, .hl .sd, .hl .se, .hl .sh, .hl .si, .hl .sr, .hl .ss, .hl .sx, .hl .dl { color: var(--tk-str); }
.hl .m, .hl .mi, .hl .mf, .hl .mh, .hl .mo, .hl .il { color: var(--tk-num); }
.hl .c, .hl .c1, .hl .cm, .hl .ch, .hl .cs, .hl .cp, .hl .cpf { color: var(--tk-com); font-style: italic; }
.hl .nf, .hl .fm, .hl .nb, .hl .nx { color: var(--tk-fn); }
.hl .nt, .hl .na, .hl .nl, .hl .nd { color: var(--tk-key); }
.hl .o, .hl .ow, .hl .p { color: var(--tk-op); }
.hl .nv, .hl .vg, .hl .vi { color: var(--tk-ty); }

/* ---------------- content pages (prose) ---------------- */
.page-head { padding: clamp(56px, 9vh, 96px) 0 clamp(24px, 4vh, 40px); border-bottom: 1px solid var(--line); background: radial-gradient(60% 120% at 85% 0%, color-mix(in srgb, var(--orange) 9%, transparent), transparent 60%); }
.prose { font-size: 16.5px; }
.prose h1 { margin: 0 0 14px; font: 700 clamp(2rem, 4vw, 2.8rem)/1.08 var(--sans); letter-spacing: -.035em; }
.prose h2 { margin: 54px 0 14px; font: 700 1.65rem/1.2 var(--sans); letter-spacing: -.025em; padding-top: 8px; }
.prose h3 { margin: 36px 0 10px; font: 600 1.25rem/1.3 var(--sans); letter-spacing: -.015em; }
.prose h4 { margin: 28px 0 8px; font: 600 1.02rem/1.4 var(--mono); letter-spacing: -.01em; }
.prose h4 code { background: none; border: 0; padding: 0; font-size: 1em; color: var(--orange-text); }
.prose p, .prose li { color: var(--text-2); }
.prose strong { color: var(--text); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: 5px 0; }
.prose li.task { list-style: none; position: relative; margin-left: -1.3em; padding-left: 30px; }
.prose li.task .check { position: absolute; left: 0; top: .3em; width: 17px; height: 17px; border-radius: 5px; border: 1.5px solid var(--orange); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }
.anchor { margin-left: .4em; color: var(--faint); font-weight: 400; opacity: 0; text-decoration: none; transition: opacity .2s; }
h2:hover .anchor, h3:hover .anchor, h4:hover .anchor, .anchor:focus { opacity: 1; text-decoration: none; }
.table-wrap { margin: 16px 0; overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.table-wrap th, .table-wrap td { padding: 10px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.table-wrap th { background: var(--bg-2); font: 600 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
.table-wrap tr:last-child td { border-bottom: 0; }
.table-wrap td code { white-space: nowrap; }
.table-wrap td { color: var(--text-2); min-width: 120px; }
.callout { margin: 22px 0; padding: 18px 20px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--card); }
.callout p { margin: 6px 0 0; }
.callout-kicker { margin: 0 !important; font: 600 12.5px var(--mono) !important; letter-spacing: .06em; text-transform: uppercase; color: var(--orange-text) !important; }
.callout-hot { border-color: var(--orange); background: linear-gradient(180deg, color-mix(in srgb, var(--orange) 9%, var(--card)), var(--card)); box-shadow: 0 18px 50px -36px var(--glow); }
.callout ol { margin: 10px 0 0; padding-left: 1.3em; }
.callout li { margin: 7px 0; }
.badge-admin { display: inline-block; margin-left: 10px; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--rust); background: color-mix(in srgb, var(--rust) 18%, transparent); color: var(--orange-text); font: 600 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; vertical-align: middle; }
.content { display: grid; grid-template-columns: minmax(0, 1fr); max-width: 860px; padding-top: 12px; padding-bottom: 80px; }

/* ---------------- docs ---------------- */
.docs { max-width: 1320px; margin: 0 auto; padding: 0 var(--gutter); display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); }
.docs-side { position: sticky; top: 64px; align-self: start; max-height: calc(100vh - 64px); overflow-y: auto; padding: 24px 6px 40px 0; scrollbar-width: thin; }
.docs-search { position: relative; margin-bottom: 18px; }
.docs-search input { width: 100%; height: 40px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--line-2); background: var(--card); color: var(--text); font: 14px var(--sans); }
.docs-search input:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px var(--glow); }
.docs-results { position: absolute; top: 46px; left: 0; right: -120px; z-index: 30; max-height: 60vh; overflow-y: auto; border-radius: 12px; border: 1px solid var(--line-2); background: var(--card); box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .6); padding: 6px; }
.docs-results a { display: block; padding: 9px 10px; border-radius: 8px; color: var(--text); }
.docs-results a:hover, .docs-results a.active { background: var(--card-2); text-decoration: none; }
.docs-results small { display: block; color: var(--muted); font: 11.5px var(--mono); }
.docs-results p { margin: 0; padding: 12px; color: var(--muted); font-size: 14px; }
.docs-nav-title { margin: 0 0 8px; font: 600 11.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.docs-nav ul { list-style: none; margin: 0; padding: 0; }
.docs-nav > ul > li > a { display: block; padding: 7px 10px; border-radius: 8px; color: var(--text-2); font-size: 14.5px; font-weight: 500; }
.docs-nav > ul > li > a:hover { background: var(--card); text-decoration: none; color: var(--text); }
.docs-nav li.current > a { color: var(--text); background: var(--card); box-shadow: inset 2px 0 0 var(--orange); }
.docs-nav li ul { margin: 4px 0 10px 10px; border-left: 1px solid var(--line); }
.docs-nav li ul a { display: block; padding: 4px 10px; color: var(--muted); font-size: 13px; line-height: 1.4; }
.docs-nav li ul a:hover { color: var(--text); text-decoration: none; }
.docs-nav li ul .lvl4 a { padding-left: 20px; font: 12px var(--mono); }
.docs-nav-toggle { display: none; }
.docs-body { padding: 34px 0 80px; min-width: 0; }
.docs-crumb { margin: 0 0 6px; font: 500 12.5px var(--mono); }
.docs-body > h2:first-of-type, .docs-body .tab-panel > h2:first-child { margin-top: 30px; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 60px; }
.pager a { display: block; padding: 16px 18px; border-radius: 12px; border: 1px solid var(--line); color: var(--text); font-weight: 600; }
.pager a:hover { border-color: var(--orange); text-decoration: none; }
.pager span { display: block; font: 500 11.5px var(--mono); color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
.pager-next { text-align: right; }
.provenance { margin-top: 26px; font: 12px var(--mono); color: var(--faint); }
.provenance code { font-size: 1em; }
.tabs { margin-top: 12px; }
.tab-list { display: inline-flex; gap: 4px; padding: 4px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg-2); position: sticky; top: 74px; z-index: 5; }
.tab-list button { padding: 8px 16px; border-radius: 9px; border: 0; background: transparent; color: var(--text-2); font: 600 13.5px var(--mono); cursor: pointer; }
.tab-list button[aria-selected="true"] { background: var(--card); color: var(--text); box-shadow: inset 0 -2px 0 var(--orange); }

/* ---------------- crates ---------------- */
.crate { padding: 28px; border-radius: calc(var(--radius) + 4px); border: 1px solid var(--line); background: var(--card); margin-bottom: 18px; scroll-margin-top: 90px; }
.crate-head { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; }
.crate-head h2 { margin: 0; font: 700 1.5rem var(--mono); letter-spacing: -.03em; }
.crate-head .ver { font: 500 12.5px var(--mono); color: var(--muted); }
.crate p { color: var(--text-2); overflow-wrap: anywhere; }
.crate .feat { margin-top: 10px; }
.crate-points { margin: 14px 0 18px; padding-left: 1.2em; color: var(--text-2); }
.crate-points li { margin: 8px 0; line-height: 1.6; }
.crate-points li::marker { color: var(--orange); }
.crate-points strong { color: var(--text); }

/* ---------------- footer ---------------- */
.footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 56px 0 28px; background: color-mix(in srgb, var(--bg) 92%, transparent); }
.footer-inner { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 2fr); gap: 40px; }
.footer-brand p { margin: 12px 0 0; color: var(--muted); font-size: 14.5px; max-width: 30em; }
.footer-license { font: 12.5px var(--mono) !important; color: var(--faint) !important; }
.footer-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.footer-cols a { display: block; padding: 4px 0; color: var(--text-2); font-size: 14.5px; }
.footer-h { margin: 0 0 8px; font: 600 11.5px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.footer-legal { max-width: var(--max); margin: 40px auto 0; padding: 18px var(--gutter) 0; border-top: 1px solid var(--line); font: 12.5px var(--mono); color: var(--faint); }

/* ---------------- reveal ---------------- */
.js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: calc(var(--d, 0) * 70ms); }
.js [data-reveal].in { opacity: 1; transform: none; }

.static *, .static *::before, .static *::after { transition: none !important; }
.static [data-reveal] { opacity: 1 !important; transform: none !important; }

/* ---------------- contact ---------------- */
.content.contact-page { max-width: var(--max); }
.contact-grid { display: grid; grid-template-columns: minmax(0, 760px) 320px; gap: 22px; align-items: start; }
.contact-form { scroll-margin-top: 90px; border-radius: calc(var(--radius) + 4px); border: 1px solid var(--line); background: var(--card); overflow: hidden; display: grid; gap: 14px; padding-bottom: 22px; }
.contact-form > :not(.form-bar) { margin-inline: 22px; }
.form-bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; border-bottom: 1px solid var(--line); background: var(--bg-2); font: 12px var(--mono); color: var(--muted); }
.form-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-2); }
.form-bar i:nth-child(1) { background: var(--orange); } .form-bar i:nth-child(2) { background: var(--rust); }
.form-bar span { margin-left: 8px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: grid; gap: 6px; }
.field span { font: 500 12px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.field span::before { content: "> "; color: var(--orange-text); }
.field input, .field textarea { width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line-2); background: var(--bg-2); color: var(--text); font: 400 15px var(--sans); resize: vertical; transition: border-color .2s, box-shadow .2s; }
.field textarea { min-height: 160px; line-height: 1.55; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--orange); box-shadow: 0 0 0 3px color-mix(in srgb, var(--orange) 22%, transparent); }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; }
.form-foot small { color: var(--muted); font: 12.5px var(--mono); }
.form-sent { padding: 12px 14px; border-radius: 10px; border: 1px solid var(--orange); background: color-mix(in srgb, var(--orange) 10%, var(--card)); color: var(--text); }
.form-sent b { color: var(--orange-text); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.contact-side { display: grid; gap: 14px; }
.contact-side .card h3 { margin-top: 0; }
.contact-side .chip { margin-top: 12px; cursor: pointer; background: transparent; }
.mail { font-family: var(--mono); font-size: .95em; overflow-wrap: anywhere; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } .contact-form > :not(.form-bar) { margin-inline: 16px; } }

/* ---------------- responsive ---------------- */
@media (max-width: 1060px) {
  .topnav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0; padding: 10px var(--gutter) 18px; background: var(--bg); border-bottom: 1px solid var(--line); }
  .topnav.open { display: flex; }
  .topnav a { padding: 12px 8px; font-size: 16px; }
  .topbar-tools { margin-left: auto; }
  .menu-toggle { display: inline-grid; }
  .hero-grid, .split, .paths, .band { grid-template-columns: minmax(0, 1fr); }
  .path-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .docs { grid-template-columns: minmax(0, 1fr); }
  .docs-side { position: static; max-height: none; padding: 18px 0 0; overflow: visible; }
  .docs-nav { display: none; }
  .docs-nav.open { display: block; padding: 6px 0 4px; }
  .docs-nav-toggle { display: inline-flex; align-items: center; height: 38px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--line-2); background: var(--card); color: var(--text); font: 600 13px var(--mono); cursor: pointer; }
  .docs-results { right: 0; }
  .footer-inner { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .path-list, .grid-3, .stats { grid-template-columns: minmax(0, 1fr); }
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pager { grid-template-columns: minmax(0, 1fr); }
  .pager-next { text-align: left; }
  pre.hl { font-size: 12.6px; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
}