/* ===================================================================
   Kartik Kumar — site styles
   One blueprint system, three colour modes (mono / noir / cyan).
   =================================================================== */

/* ---------- THEME TOKENS ---------- */
:root, html[data-theme="mono"]{
  --paper:#ffffff; --paper2:#ffffff; --ink:#111111; --muted:#6b6b6b; --accent:#111111;
  --hair:rgba(17,17,17,.13);
  --vignette:transparent;
  --bw:2px;
  --card-radius:0px; --pipe-radius:0px; --tag-radius:0px;
  --card-shadow:5px 5px 0 rgba(17,17,17,1);
  --pipe-bg:#ffffff;
  --pipe-fill:rgba(17,17,17,.85);
  --dot-bg:#111111; --dot-glow:none; --dot-size:10px;
  --node-dot:#111111; --node-glow:none;
  --tag-border:var(--ink);
  --sn-weight:700; --sn-bb:1px solid var(--hair);
  --cta-weight:700;
  --dk-coffee-ink:#ffffff;
}
html[data-theme="noir"]{
  --paper:#17181c; --paper2:#22242b; --ink:#f1ece2; --muted:#a8a296; --accent:#e0a13c;
  --hair:rgba(241,236,226,.15);
  --vignette:radial-gradient(120% 100% at 50% 50%,transparent 52%,rgba(0,0,0,.55) 100%);
  --bw:1.5px;
  --card-radius:10px; --pipe-radius:6px; --tag-radius:5px;
  --card-shadow:0 6px 22px rgba(0,0,0,.5);
  --pipe-bg:linear-gradient(180deg,#23252a,#191b1f);
  --pipe-fill:rgba(224,161,60,.55);
  --dot-bg:#e0a13c; --dot-glow:0 0 10px rgba(224,161,60,.8); --dot-size:9px;
  --node-dot:#e0a13c; --node-glow:0 0 8px rgba(224,161,60,.7);
  --tag-border:var(--hair);
  --sn-weight:400; --sn-bb:none;
  --cta-weight:400;
  --dk-coffee-ink:#1a1407;
}
html[data-theme="cyan"]{
  --paper:#143a63; --paper2:#235a8f; --ink:#eaf3ff; --muted:#a8cbed; --accent:#8fd3ff;
  --hair:rgba(220,238,255,.2);
  --vignette:radial-gradient(120% 100% at 50% 50%,transparent 50%,rgba(8,28,52,.7) 100%);
  --bw:1.5px;
  --card-radius:10px; --pipe-radius:6px; --tag-radius:5px;
  --card-shadow:0 6px 22px rgba(8,28,52,.55);
  --pipe-bg:rgba(220,238,255,.1);
  --pipe-fill:rgba(143,211,255,.65);
  --dot-bg:#ffffff; --dot-glow:0 0 10px rgba(255,255,255,.9); --dot-size:9px;
  --node-dot:#ffffff; --node-glow:0 0 8px rgba(255,255,255,.8);
  --tag-border:var(--hair);
  --sn-weight:400; --sn-bb:none;
  --cta-weight:400;
  --dk-coffee-ink:#0a1e30;
}

:root{--sans:'Space Grotesk',system-ui,sans-serif;--mono:'Space Mono',ui-monospace,monospace;
  --ease:cubic-bezier(.16,1,.3,1);--spring:cubic-bezier(.34,1.4,.5,1)}

/* every mode uses the Mono blueprint box style: square corners + hard offset shadow.
   Double attribute selector → higher specificity than any per-mode block, so it wins regardless of order. */
html[data-theme][data-theme]{
  --bw:2px; --card-radius:0px; --pipe-radius:0px; --tag-radius:0px;
  --card-shadow:5px 5px 0 var(--ink);
}
/* dark-background modes: a light offset is too loud — use a darker, subtler one */
html[data-theme="noir"][data-theme],
html[data-theme="cyan"][data-theme],
html[data-theme="fluid"][data-theme],
html[data-theme="tunnel"][data-theme]{ --card-shadow:4px 4px 0 color-mix(in srgb,var(--ink) 28%,transparent); }

/* Flat — clean light mode, no background grid ("checks"), cards kept */
html[data-theme="flat"]{
  --paper:#ffffff; --paper2:#ffffff; --ink:#17171b; --muted:#70707a; --accent:#17171b;
  --hair:rgba(20,20,26,.12); --vignette:transparent; --bw:1.5px;
  --card-radius:14px; --pipe-radius:8px; --tag-radius:8px;
  --card-shadow:0 8px 24px rgba(20,20,26,.09);
  --pipe-bg:#f2f2f4; --pipe-fill:rgba(23,23,27,.5);
  --dot-bg:#17171b; --dot-glow:none; --dot-size:9px;
  --node-dot:#17171b; --node-glow:none;
  --tag-border:var(--hair); --sn-weight:600; --sn-bb:1px solid var(--hair); --cta-weight:600;
  --dk-coffee-ink:#ffffff;
}
html[data-theme="flat"] body{background:
  radial-gradient(70vw 55vh at 82% -12%, #e9edf7, transparent 60%),
  radial-gradient(62vw 55vh at -8% 112%, #efeaf6, transparent 60%),
  linear-gradient(160deg, #fbfbfe, #f3f4f9)}
/* Dots — dot-board background (light) */
html[data-theme="dots"]{
  --paper:#f4f6f8; --paper2:#ffffff; --ink:#1b2733; --muted:#6b7785; --accent:#2f6df0;
  --hair:rgba(27,39,51,.16); --vignette:transparent; --bw:1.5px;
  --card-radius:12px; --pipe-radius:6px; --tag-radius:6px;
  --card-shadow:0 6px 18px rgba(27,39,51,.10);
  --pipe-bg:#ffffff; --pipe-fill:rgba(47,109,240,.6);
  --dot-bg:#2f6df0; --dot-glow:0 0 8px rgba(47,109,240,.5); --dot-size:9px;
  --node-dot:#2f6df0; --node-glow:0 0 8px rgba(47,109,240,.5);
  --tag-border:var(--hair); --sn-weight:600; --sn-bb:1px solid var(--hair); --cta-weight:600;
  --dk-coffee-ink:#ffffff;
}
html[data-theme="dots"] body{background-image:radial-gradient(var(--hair) 1.5px,transparent 1.5px);background-size:22px 22px}
/* Solar — playful sunflower yellow, pop-art accents (light) */
html[data-theme="solar"]{
  --paper:#ffd23f; --paper2:#fffbea; --ink:#1c1500; --muted:#8a7320; --accent:#e14434;
  --hair:rgba(28,21,0,.18); --vignette:transparent; --bw:2px;
  --card-radius:16px; --pipe-radius:8px; --tag-radius:999px;
  --card-shadow:5px 5px 0 rgba(28,21,0,.9);
  --pipe-bg:#fffbea; --pipe-fill:rgba(225,68,52,.85);
  --dot-bg:#e14434; --dot-glow:0 0 10px rgba(225,68,52,.55); --dot-size:10px;
  --node-dot:#e14434; --node-glow:0 0 8px rgba(225,68,52,.5);
  --tag-border:var(--ink); --sn-weight:700; --sn-bb:1px solid var(--hair); --cta-weight:700;
  --dk-coffee-ink:#fffbea;
}
/* Glass — clean light, refraction-friendly (live: cursor orb distorts the page) */
html[data-theme="glass"]{
  --paper:#eef0f6; --paper2:#ffffff; --ink:#171821; --muted:#6a6c7a; --accent:#5566ff;
  --hair:rgba(23,24,33,.12); --vignette:transparent; --bw:1.5px;
  --card-radius:16px; --pipe-radius:8px; --tag-radius:999px;
  --card-shadow:0 10px 30px rgba(40,44,90,.12);
  --pipe-bg:#ffffff; --pipe-fill:rgba(85,102,255,.55);
  --dot-bg:#5566ff; --dot-glow:0 0 8px rgba(85,102,255,.5); --dot-size:9px;
  --node-dot:#5566ff; --node-glow:0 0 8px rgba(85,102,255,.5);
  --tag-border:var(--hair); --sn-weight:600; --sn-bb:1px solid var(--hair); --cta-weight:600;
  --dk-coffee-ink:#ffffff;
}
/* Contour — light, flow-field background (live) */
html[data-theme="contour"]{
  --paper:#f6f6f4; --paper2:#ffffff; --ink:#1c1c1e; --muted:#6f6f72; --accent:#1c1c1e;
  --hair:rgba(28,28,30,.12); --vignette:transparent; --bw:1.5px;
  --card-radius:12px; --pipe-radius:6px; --tag-radius:6px;
  --card-shadow:0 8px 24px rgba(28,28,30,.08);
  --pipe-bg:#ffffff; --pipe-fill:rgba(28,28,30,.5);
  --dot-bg:#1c1c1e; --dot-glow:none; --dot-size:9px;
  --node-dot:#1c1c1e; --node-glow:none;
  --tag-border:var(--hair); --sn-weight:600; --sn-bb:1px solid var(--hair); --cta-weight:600;
  --dk-coffee-ink:#ffffff;
}
html[data-theme="contour"] body{background-image:none}
/* Fluid — dark, Navier-Stokes background (live) */
html[data-theme="fluid"]{
  --paper:#101218; --paper2:#1b1e28; --ink:#f0eefc; --muted:#a6a4b8; --accent:#8f74ff;
  --hair:rgba(240,238,252,.13); --vignette:radial-gradient(120% 100% at 50% 50%,transparent 48%,rgba(0,0,0,.7));
  --bw:1.5px; --card-radius:14px; --pipe-radius:6px; --tag-radius:6px;
  --card-shadow:0 8px 30px rgba(0,0,0,.6);
  --pipe-bg:#14141c; --pipe-fill:rgba(124,92,255,.6);
  --dot-bg:#7c5cff; --dot-glow:0 0 10px rgba(124,92,255,.7); --dot-size:9px;
  --node-dot:#7c5cff; --node-glow:0 0 8px rgba(124,92,255,.6);
  --tag-border:var(--hair); --sn-weight:400; --sn-bb:none; --cta-weight:400;
  --dk-coffee-ink:#0a0a12;
}
html[data-theme="fluid"] body{background-image:none}
/* Fluid (light) — Navier-Stokes over a light page */
html[data-theme="fluidlight"]{
  --paper:#f3f4fb; --paper2:#ffffff; --ink:#1a1b24; --muted:#6b6c7a; --accent:#5b6bff;
  --hair:rgba(26,27,36,.12); --vignette:transparent; --bw:1.5px;
  --card-radius:14px; --pipe-radius:6px; --tag-radius:6px;
  --card-shadow:0 10px 30px rgba(30,34,80,.1);
  --pipe-bg:#ffffff; --pipe-fill:rgba(91,107,255,.55);
  --dot-bg:#5b6bff; --dot-glow:0 0 8px rgba(91,107,255,.5); --dot-size:9px;
  --node-dot:#5b6bff; --node-glow:0 0 8px rgba(91,107,255,.5);
  --tag-border:var(--hair); --sn-weight:600; --sn-bb:1px solid var(--hair); --cta-weight:600;
  --dk-coffee-ink:#ffffff;
}
html[data-theme="fluidlight"] body{background:#f3f4fb;background-image:none}
/* Tunnel — 3D pipeline flythrough background (dark) */
html[data-theme="tunnel"]{
  --paper:#0b0d15; --paper2:#171b27; --ink:#eef2ff; --muted:#aab2d2; --accent:#8fa6ff;
  --hair:rgba(238,242,255,.12); --vignette:radial-gradient(120% 100% at 50% 50%,transparent 46%,rgba(0,0,0,.7));
  --bw:1.5px; --card-radius:14px; --pipe-radius:6px; --tag-radius:6px;
  --card-shadow:0 8px 30px rgba(0,0,0,.6);
  --pipe-bg:#10131f; --pipe-fill:rgba(126,155,255,.6);
  --dot-bg:#7e9bff; --dot-glow:0 0 10px rgba(126,155,255,.7); --dot-size:9px;
  --node-dot:#7e9bff; --node-glow:0 0 8px rgba(126,155,255,.6);
  --tag-border:var(--hair); --sn-weight:400; --sn-bb:none; --cta-weight:400;
  --dk-coffee-ink:#05060c;
}
html[data-theme="tunnel"] body{background-image:none}
.switch button[data-set="fluidlight"] i{background:linear-gradient(135deg,#9af0ff,#5b6bff)}
.switch button[data-set="tunnel"] i{background:linear-gradient(135deg,#7e9bff,#9af0ff)}
html[data-theme="fluidlight"] .theme-cur{background:linear-gradient(135deg,#9af0ff,#5b6bff)}
html[data-theme="tunnel"] .theme-cur{background:linear-gradient(135deg,#7e9bff,#9af0ff)}

/* live-effect layers (created by fx.js) */
#fx-canvas-3d{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:none;pointer-events:none}
#fx-canvas-3d.on{display:block}
#fx-canvas-sh{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:none;pointer-events:none}
#fx-canvas-sh.on{display:block}

/* Caustic glass (light) */
html[data-theme="caustic"]{
  --paper:#eaf3ff; --paper2:#ffffff; --ink:#0e2233; --muted:#5e7387; --accent:#1f7ad6;
  --hair:rgba(14,34,51,.12); --vignette:transparent; --bw:1.5px;
  --card-radius:14px; --pipe-radius:6px; --tag-radius:6px; --card-shadow:0 10px 30px rgba(14,34,51,.1);
  --pipe-bg:#ffffff; --pipe-fill:rgba(31,122,214,.5);
  --dot-bg:#1f7ad6; --dot-glow:0 0 8px rgba(31,122,214,.5); --dot-size:9px;
  --node-dot:#1f7ad6; --node-glow:0 0 8px rgba(31,122,214,.5);
  --tag-border:var(--hair); --sn-weight:600; --sn-bb:1px solid var(--hair); --cta-weight:600; --dk-coffee-ink:#ffffff;
}
html[data-theme="caustic"] body{background-image:none}
/* Liquid metal (light) */
html[data-theme="metal"]{
  --paper:#eef0f6; --paper2:#ffffff; --ink:#1a1c24; --muted:#6b6e7e; --accent:#4a5b8c;
  --hair:rgba(26,28,36,.12); --vignette:transparent; --bw:1.5px;
  --card-radius:14px; --pipe-radius:6px; --tag-radius:6px; --card-shadow:0 10px 30px rgba(26,28,36,.1);
  --pipe-bg:#ffffff; --pipe-fill:rgba(74,91,140,.5);
  --dot-bg:#4a5b8c; --dot-glow:none; --dot-size:9px; --node-dot:#4a5b8c; --node-glow:none;
  --tag-border:var(--hair); --sn-weight:600; --sn-bb:1px solid var(--hair); --cta-weight:600; --dk-coffee-ink:#ffffff;
}
html[data-theme="metal"] body{background-image:none}
/* Fluid ink (light) */
html[data-theme="fluidink"]{
  --paper:#f2f4ff; --paper2:#ffffff; --ink:#0e1230; --muted:#5b6080; --accent:#2440c0;
  --hair:rgba(14,18,48,.12); --vignette:transparent; --bw:1.5px;
  --card-radius:14px; --pipe-radius:6px; --tag-radius:6px; --card-shadow:0 10px 30px rgba(14,18,48,.1);
  --pipe-bg:#ffffff; --pipe-fill:rgba(36,64,192,.5);
  --dot-bg:#2440c0; --dot-glow:0 0 8px rgba(36,64,192,.5); --dot-size:9px;
  --node-dot:#2440c0; --node-glow:0 0 8px rgba(36,64,192,.5);
  --tag-border:var(--hair); --sn-weight:600; --sn-bb:1px solid var(--hair); --cta-weight:600; --dk-coffee-ink:#ffffff;
}
html[data-theme="fluidink"] body{background-image:none}
.switch button[data-set="caustic"] i{background:linear-gradient(135deg,#bfe1ff,#1f7ad6)}
.switch button[data-set="metal"] i{background:linear-gradient(135deg,#e8ebf5,#4a5b8c)}
.switch button[data-set="fluidink"] i{background:linear-gradient(135deg,#9fb4ff,#2440c0)}
html[data-theme="caustic"] .theme-cur{background:linear-gradient(135deg,#bfe1ff,#1f7ad6)}
html[data-theme="metal"] .theme-cur{background:linear-gradient(135deg,#e8ebf5,#4a5b8c)}
html[data-theme="fluidink"] .theme-cur{background:linear-gradient(135deg,#9fb4ff,#2440c0)}
/* Candy — playful pastel multi-colour (light) */
html[data-theme="candy"]{
  --paper:#fff6fb; --paper2:#ffffff; --ink:#2a2440; --muted:#7d7694; --accent:#ff4d9d;
  --hair:rgba(42,36,64,.12); --vignette:transparent; --bw:2px;
  --card-radius:0px; --pipe-radius:0px; --tag-radius:0px; --card-shadow:5px 5px 0 var(--ink);
  --pipe-bg:#ffffff; --pipe-fill:rgba(255,77,157,.55);
  --dot-bg:#ff4d9d; --dot-glow:0 0 8px rgba(255,77,157,.5); --dot-size:9px;
  --node-dot:#ff4d9d; --node-glow:0 0 8px rgba(255,77,157,.5);
  --tag-border:var(--hair); --sn-weight:700; --sn-bb:1px solid var(--hair); --cta-weight:700; --dk-coffee-ink:#ffffff;
}
html[data-theme="candy"] body{background:
  radial-gradient(46vw 46vw at 14% 16%,#ffd1e8,transparent 60%),
  radial-gradient(48vw 48vw at 86% 22%,#cfe0ff,transparent 60%),
  radial-gradient(52vw 52vw at 28% 92%,#d2fff0,transparent 60%),
  radial-gradient(46vw 46vw at 92% 86%,#fff0c2,transparent 60%),#fff6fb;background-attachment:fixed}
.switch button[data-set="candy"] i{background:linear-gradient(135deg,#ffd1e8,#cfe0ff,#9af7d0)}
html[data-theme="candy"] .theme-cur{background:linear-gradient(135deg,#ffd1e8,#cfe0ff,#9af7d0)}

/* ===== Candy: colourful boxes + rainbow, shaped pipelines ===== */
/* every box gets a pastel tint (cycled) */
html[data-theme="candy"] .dep,html[data-theme="candy"] .metric,html[data-theme="candy"] .stackgroup,html[data-theme="candy"] .proj{background:#ffdcec}
html[data-theme="candy"] .dep:nth-child(4n+2),html[data-theme="candy"] .metric:nth-child(4n+2),html[data-theme="candy"] .stackgroup:nth-child(4n+2),html[data-theme="candy"] .proj:nth-child(4n+2){background:#d8e8ff}
html[data-theme="candy"] .dep:nth-child(4n+3),html[data-theme="candy"] .metric:nth-child(4n+3),html[data-theme="candy"] .stackgroup:nth-child(4n+3),html[data-theme="candy"] .proj:nth-child(4n+3){background:#d6fbee}
html[data-theme="candy"] .dep:nth-child(4n),html[data-theme="candy"] .metric:nth-child(4n),html[data-theme="candy"] .stackgroup:nth-child(4n),html[data-theme="candy"] .proj:nth-child(4n){background:#fff1c6}
html[data-theme="candy"] .flow .stage:nth-child(2) .card{background:#ffdcec}
html[data-theme="candy"] .flow .stage:nth-child(3) .card{background:#d8e8ff}
html[data-theme="candy"] .flow .stage:nth-child(4) .card{background:#d6fbee}
html[data-theme="candy"] .flow .stage:nth-child(5) .card{background:#fff1c6}
html[data-theme="candy"] .flow .stage:nth-child(6) .card{background:#ecdcff}
/* hero: the river is the only pipeline in candy, so retire the horizontal tube + station cards */
html[data-theme="candy"] .pipe,
html[data-theme="candy"] .dot,
html[data-theme="candy"] .node,
html[data-theme="candy"] .leg,
html[data-theme="candy"] .flow,
html[data-theme="candy"] .scrollcue{display:none}
/* hero title sits on the LEFT bank (river enters from the top-right corner) */
html[data-theme="candy"] .pipeline-hero{min-height:84vh;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:0}
html[data-theme="candy"] .home-head{max-width:48%;margin:0 auto 0 0;text-align:left}
/* ONE continuous river, full page (hero → footer), top-left → bottom-right; text sits on the banks */
.river{display:none}
html[data-theme="candy"] .chapters::before,
html[data-theme="candy"] .chapters::after,
html[data-theme="candy"] .spine-fill,
html[data-theme="candy"] .vdot,
html[data-theme="candy"] .chapter::before,
html[data-theme="candy"] .chapter::after{display:none}
html[data-theme="candy"] .chapters{--rail:0px}
html[data-theme="candy"] .world{position:relative}
html[data-theme="candy"] .pipeline-hero,
html[data-theme="candy"] .chapters{position:relative;z-index:1}
html[data-theme="candy"] .river{display:block;position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;overflow:visible}
html[data-theme="candy"] .chapter{position:relative;z-index:1;padding-left:0;padding-right:0;max-width:48%;min-height:84vh;display:flex;flex-direction:column;justify-content:center}
html[data-theme="candy"] .chapter:nth-of-type(odd){margin-left:auto;margin-right:0}   /* river runs left here → text on right bank */
html[data-theme="candy"] .chapter:nth-of-type(even){margin-left:0;margin-right:auto}  /* river runs right → text on left bank */
/* keep the number + heading + lead hugging their bank edge (not orphaned mid-page) */
html[data-theme="candy"] .chapter:nth-of-type(odd) .ch-head{justify-content:flex-end;text-align:right}
html[data-theme="candy"] .chapter:nth-of-type(odd) .ch-lead{margin-left:auto;text-align:right;max-width:52ch}
html[data-theme="candy"] .chapter:nth-of-type(even) .ch-head{justify-content:flex-start}
html[data-theme="candy"] .chapter:nth-of-type(even) .ch-lead{max-width:52ch}
html[data-theme="candy"] .river-cur{animation:riverflow 2.4s linear infinite}
@keyframes riverflow{to{stroke-dashoffset:-368}}
@media(max-width:760px){
  html[data-theme="candy"] .chapter,html[data-theme="candy"] .chapter:last-of-type{max-width:none;margin:0}
}
#fx-canvas-2d{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:none;pointer-events:none}
#fx-canvas-2d.on{display:block}
#fx-canvas-gl{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:block;opacity:0;pointer-events:none;transition:opacity .5s ease}
#fx-canvas-gl.on{opacity:1}
#fx-canvas-ink{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:none;pointer-events:none}
#fx-canvas-ink.on{display:block}
#fx-fluid-frame{position:fixed;inset:0;width:100%;height:100%;z-index:0;border:0;pointer-events:none}

/* practical liquid glass: frosted translucent panels over a colour field */
html[data-theme="glass"] body{background:
  radial-gradient(46vw 46vw at 14% 18%,#ffd6ec,transparent 60%),
  radial-gradient(48vw 48vw at 86% 24%,#cfe0ff,transparent 60%),
  radial-gradient(52vw 52vw at 28% 92%,#d2fff0,transparent 60%),
  radial-gradient(46vw 46vw at 92% 88%,#fff1c4,transparent 60%),#eef0f6;background-attachment:fixed}
html[data-theme="glass"] .topbar,
html[data-theme="glass"] .card,
html[data-theme="glass"] .dep,
html[data-theme="glass"] .metric,
html[data-theme="glass"] .stackgroup,
html[data-theme="glass"] .proj,
html[data-theme="glass"] .fuel-btn,
html[data-theme="glass"] footer.site,
html[data-theme="glass"] .theme .switch{
  background:rgba(255,255,255,.42)!important;
  -webkit-backdrop-filter:blur(16px) saturate(1.6);backdrop-filter:blur(16px) saturate(1.6);
  border:1px solid rgba(255,255,255,.62)!important}
html[data-theme="glass"] .bigmail{background:rgba(23,24,33,.82)!important;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}

/* swatches for the new modes (trigger + menu) */
.switch button[data-set="glass"] i{background:linear-gradient(135deg,#cfe0ff,#5566ff)}
.switch button[data-set="fluid"] i{background:linear-gradient(135deg,#7c5cff,#ff5ca8)}
.switch button[data-set="contour"] i{background:#1c1c1e}
html[data-theme="glass"] .theme-cur{background:linear-gradient(135deg,#cfe0ff,#5566ff)}
html[data-theme="fluid"] .theme-cur{background:linear-gradient(135deg,#7c5cff,#ff5ca8)}
html[data-theme="contour"] .theme-cur{background:#1c1c1e}
.switch button[data-set="flat"] i{background:#fafafa}
.switch button[data-set="dots"] i{background:#2f6df0}
.switch button[data-set="solar"] i{background:#ffd23f}
html[data-theme="flat"] .theme-cur{background:#ffffff}
html[data-theme="dots"] .theme-cur{background:#2f6df0}
html[data-theme="solar"] .theme-cur{background:linear-gradient(135deg,#ffe066,#ffc700)}

/* ---------- BASE ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{min-height:100vh;display:flex;flex-direction:column;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;
  background-image:
    linear-gradient(var(--hair) 1px,transparent 1px),
    linear-gradient(90deg,var(--hair) 1px,transparent 1px);
  background-size:38px 38px;background-position:center;
  transition:background-color .5s ease,color .5s ease}
body.home{height:100vh;overflow:hidden}
.vign{position:fixed;inset:0;pointer-events:none;background:var(--vignette);transition:background .5s ease;z-index:0}
a{color:inherit}

/* Lenis smooth scroll */
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
.lenis.lenis-smooth [data-lenis-prevent]{overscroll-behavior:contain}
.lenis.lenis-stopped{overflow:hidden}

/* smooth retheme on the chrome */
.topbar,footer.site,.card,.spec,.proj,.tl-card,.bigmail,.pipe,.node,.leg,.av,.switch,.phead .eye,.phead h1,.phead p{
  transition:background-color .5s ease,color .5s ease,border-color .5s ease,box-shadow .5s ease}

/* ---------- TOP BAR ---------- */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:20px;
  padding:13px clamp(18px,3vw,40px);border-bottom:var(--bw) solid var(--ink);
  background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(9px)}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand .kk{width:30px;height:30px;border-radius:var(--tag-radius);display:grid;place-items:center;
  background:var(--ink);color:var(--paper);font-family:var(--mono);font-weight:700;font-size:12px;flex:none}
.brand .bn{display:flex;flex-direction:column;line-height:1.15}
.brand .bn b{font-size:14px;font-weight:600;letter-spacing:-.01em}
.brand .bn small{font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:.06em}
.topbar nav{display:flex;gap:4px;margin-left:10px}
.topbar nav a{font-family:var(--mono);font-size:12px;color:var(--muted);text-decoration:none;
  padding:7px 12px;border-radius:max(0px,var(--pipe-radius));transition:color .2s,background .2s}
.topbar nav a:hover{color:var(--ink)}
.topbar nav a[aria-current="page"]{color:var(--ink);background:color-mix(in srgb,var(--ink) 9%,transparent)}
.tb-right{margin-left:auto;display:flex;align-items:center;gap:14px}

.av{font-family:var(--mono);font-size:11px;color:var(--accent);display:flex;align-items:center;gap:8px;white-space:nowrap}
.av .d{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 1.8s infinite;box-shadow:var(--node-glow)}
@keyframes pulse{50%{opacity:.3}}

/* mode switch */
.switch{display:flex;gap:4px;padding:4px;border:1px solid var(--hair);border-radius:var(--pipe-radius);
  background:color-mix(in srgb,var(--ink) 5%,transparent)}
.switch button{display:flex;align-items:center;gap:7px;font-family:var(--mono);font-size:11px;letter-spacing:.03em;
  color:var(--muted);background:none;border:0;cursor:pointer;padding:6px 11px;
  border-radius:max(0px,calc(var(--pipe-radius) - 2px));transition:color .2s,background .2s}
.switch button i{width:11px;height:11px;border-radius:50%;border:1px solid var(--hair);display:block;flex:none}
.switch button[data-set="mono"] i{background:#ffffff}
.switch button[data-set="noir"] i{background:#16171a}
.switch button[data-set="cyan"] i{background:#143a63}
.switch button:hover{color:var(--ink)}
.switch button.on{color:var(--ink);background:color-mix(in srgb,var(--ink) 11%,transparent)}

/* collapsible theme switcher — refined trigger + crafted menu */
.theme{position:relative;display:flex}
.theme-btn{display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 11px;cursor:pointer;color:var(--ink);
  touch-action:manipulation;-webkit-tap-highlight-color:transparent;
  border:1px solid var(--hair);border-radius:999px;
  background:color-mix(in srgb,var(--ink) 4%,transparent);
  box-shadow:inset 0 1px 0 color-mix(in srgb,#fff 22%,transparent);
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .3s var(--spring)}
.theme-btn:hover{border-color:color-mix(in srgb,var(--accent) 55%,var(--hair));
  background:color-mix(in srgb,var(--ink) 9%,transparent);transform:translateY(-1px)}
.theme-btn:active{transform:translateY(0)}
.theme-cur{width:15px;height:15px;border-radius:50%;display:block;flex:none;
  box-shadow:0 0 0 1px color-mix(in srgb,var(--ink) 28%,transparent),0 1px 2px rgba(0,0,0,.3)}
html[data-theme="mono"] .theme-cur{background:#ffffff}
html[data-theme="noir"] .theme-cur{background:linear-gradient(135deg,#2a2c31,#16171a)}
html[data-theme="cyan"] .theme-cur{background:linear-gradient(135deg,#1f5a8f,#143a63)}
.theme-btn::after{content:"";width:6px;height:6px;border:solid var(--muted);border-width:0 1.6px 1.6px 0;flex:none;
  transform:rotate(45deg) translateY(-1px);transition:transform .3s var(--ease)}
.theme.open .theme-btn::after{transform:rotate(-135deg) translateY(1px)}

.theme .switch{position:absolute;top:calc(100% + 10px);right:0;z-index:40;display:flex;flex-direction:column;align-items:stretch;gap:2px;
  min-width:180px;padding:6px;border:1px solid var(--hair);border-radius:14px;background:var(--paper2);
  box-shadow:inset 0 1px 0 color-mix(in srgb,#fff 14%,transparent),0 20px 50px -14px rgba(0,0,0,.55),0 8px 18px -10px rgba(0,0,0,.4);
  opacity:0;visibility:hidden;transform:translateY(-8px) scale(.96);transform-origin:top right;
  transition:opacity .22s var(--ease),transform .3s var(--spring),visibility .22s}
.theme.open .switch{opacity:1;visibility:visible;transform:none}
.theme .switch::before{content:"Appearance";display:block;font-family:var(--mono);font-size:9px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted);padding:6px 10px 7px}
.theme .switch button{display:flex;align-items:center;gap:11px;width:100%;justify-content:flex-start;
  padding:9px 10px;border:0;border-radius:9px;background:none;cursor:pointer;color:var(--muted);
  touch-action:manipulation;-webkit-tap-highlight-color:transparent;
  font-family:var(--mono);font-size:12px;transition:background .18s var(--ease),color .18s var(--ease)}
.theme .switch button span{display:inline!important;letter-spacing:.02em}
.theme .switch button i{width:16px;height:16px;border-radius:50%;flex:none;border:0;
  box-shadow:0 0 0 1px color-mix(in srgb,var(--ink) 24%,transparent)}
.theme .switch button:hover{background:color-mix(in srgb,var(--ink) 7%,transparent);color:var(--ink)}
.theme .switch button.on{color:var(--ink);background:color-mix(in srgb,var(--accent) 13%,transparent)}
.theme .switch button.on::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);
  margin-left:auto;flex:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}

/* ---------- COMPONENT POLISH ---------- */
/* keyboard focus rings (accessibility + craft) */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:3px}
.theme .switch button:focus-visible,.social a:focus-visible,.tags b:focus-visible{outline-offset:1px}
/* cards: spring lift + accent edge on hover */
.dep,.proj{transition:transform .35s var(--spring),background-color .5s ease,border-color .35s var(--ease),box-shadow .35s var(--ease)}
.dep:hover,.proj:hover{border-color:color-mix(in srgb,var(--accent) 55%,var(--ink))}
.dep:hover .tags b{border-color:color-mix(in srgb,var(--accent) 35%,var(--tag-border))}
.tags b{transition:border-color .2s var(--ease),color .2s var(--ease)}
/* buttons feel springy + pressable */
.btn,.fuel-btn,.bigmail{transition:transform .3s var(--spring),background-color .5s ease,border-color .35s var(--ease),box-shadow .35s var(--ease)}
.btn:active,.fuel-btn:active,.bigmail:active{transform:translateY(1px) scale(.992)}
/* social icons: springy pop */
.social a{transition:transform .3s var(--spring),opacity .25s,border-color .25s,background .25s}

/* ===================================================================
   ELEVATION — premium, blueprint-true component details
   =================================================================== */
/* brand mark gets depth */
.brand .kk{background:linear-gradient(150deg,var(--ink),color-mix(in srgb,var(--ink) 72%,#000));
  box-shadow:inset 0 1px 0 color-mix(in srgb,#fff 16%,transparent),0 2px 7px rgba(0,0,0,.28)}

/* nav: sliding underline indicator */
.topbar nav a{position:relative}
.topbar nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:1.5px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.topbar nav a:hover::after,.topbar nav a.active::after{transform:scaleX(1)}

/* availability dot: pulsing halo */
.av .d{position:relative}
.av .d::after{content:"";position:absolute;inset:-3px;border-radius:50%;border:1px solid var(--accent);
  animation:halo 1.9s ease-out infinite}
@keyframes halo{0%{transform:scale(.7);opacity:.7}100%{transform:scale(2.3);opacity:0}}

/* chapter numerals: gradient fill */
.ch-no{background:linear-gradient(180deg,var(--accent),color-mix(in srgb,var(--accent) 60%,transparent));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* blueprint registration ticks on the signature cards */
.dep,.metric,.stackgroup{position:relative}
.card::before,.dep::before,.metric::before,.stackgroup::before{content:"";position:absolute;inset:8px;pointer-events:none;z-index:0;opacity:.3;
  transition:opacity .35s var(--ease);
  background:
    linear-gradient(var(--accent),var(--accent)) left top/11px 1.6px no-repeat,
    linear-gradient(var(--accent),var(--accent)) left top/1.6px 11px no-repeat,
    linear-gradient(var(--accent),var(--accent)) right top/11px 1.6px no-repeat,
    linear-gradient(var(--accent),var(--accent)) right top/1.6px 11px no-repeat,
    linear-gradient(var(--accent),var(--accent)) left bottom/11px 1.6px no-repeat,
    linear-gradient(var(--accent),var(--accent)) left bottom/1.6px 11px no-repeat,
    linear-gradient(var(--accent),var(--accent)) right bottom/11px 1.6px no-repeat,
    linear-gradient(var(--accent),var(--accent)) right bottom/1.6px 11px no-repeat}
.card:hover::before,.dep:hover::before,.metric:hover::before,.stackgroup:hover::before{opacity:.85}
.card>*,.dep>*,.metric>*,.stackgroup>*{position:relative;z-index:1}
/* same spring lift + accent edge as the cards */
.metric,.stackgroup{transition:transform .35s var(--spring),border-color .35s var(--ease),background-color .5s ease,box-shadow .35s var(--ease)}
.metric:hover,.stackgroup:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--accent) 55%,var(--ink))}

/* orchestrated hero entrance (staggered, JS-gated so no-JS shows it all) */
@keyframes riseIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.js:not(.booted) .pipeline-hero .home-head .eye,
.js:not(.booted) .pipeline-hero .home-head h1,
.js:not(.booted) .pipeline-hero .home-head .sub,
.js:not(.booted) .pipeline-hero .flow,
.js:not(.booted) .pipeline-hero .scrollcue{opacity:0}
.js.booted .pipeline-hero .home-head .eye,
.js.booted .pipeline-hero .home-head h1,
.js.booted .pipeline-hero .home-head .sub,
.js.booted .pipeline-hero .flow,
.js.booted .pipeline-hero .scrollcue{animation:riseIn .85s var(--ease)}
.js .pipeline-hero .home-head h1{animation-delay:.12s}
.js .pipeline-hero .home-head .sub{animation-delay:.26s}
.js .pipeline-hero .flow{animation-delay:.4s}
.js .pipeline-hero .scrollcue{animation-delay:.62s}

/* email copy button + on-page socials */
.mail-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.copybtn{position:relative;display:grid;place-items:center;width:46px;height:46px;flex:none;cursor:pointer;
  border:var(--bw) solid var(--ink);border-radius:var(--card-radius);background:var(--paper2);color:var(--ink);
  box-shadow:var(--card-shadow);transition:transform .25s var(--spring),border-color .25s var(--ease)}
.copybtn:hover{transform:translateY(-2px);border-color:var(--accent)}
.copybtn svg{width:18px;height:18px}
.copybtn::after{content:"Copied";position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(4px);
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;background:var(--ink);color:var(--paper);padding:4px 8px;border-radius:6px;
  opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease);white-space:nowrap}
.copybtn.copied::after{opacity:1;transform:translateX(-50%) translateY(0)}
.oc-social{margin-top:26px}
.oc-social .oc-label{margin-bottom:12px}

/* ---- PRELOADER: SQL query + torn-page reveal ---- */
#preloader{position:fixed;inset:0;z-index:9999;pointer-events:auto}
html.preloading{overflow:hidden}
html:not(.js) #preloader{display:none}
.pl-half{position:absolute;left:0;width:100%;background:var(--paper);
  background-image:linear-gradient(var(--hair) 1px,transparent 1px),linear-gradient(90deg,var(--hair) 1px,transparent 1px);
  background-size:38px 38px;background-position:center;transition:transform .75s cubic-bezier(.76,0,.24,1)}
.pl-top{top:0;height:60%;
  clip-path:polygon(0 0,100% 0,100% 88%,96% 94%,92% 84%,88% 94%,84% 84%,80% 94%,76% 84%,72% 94%,68% 84%,64% 94%,60% 84%,56% 94%,52% 84%,48% 94%,44% 84%,40% 94%,36% 84%,32% 94%,28% 84%,24% 94%,20% 84%,16% 94%,12% 84%,8% 94%,4% 84%,0 94%)}
.pl-bottom{bottom:0;height:60%;
  clip-path:polygon(0 16%,4% 6%,8% 16%,12% 6%,16% 16%,20% 6%,24% 16%,28% 6%,32% 16%,36% 6%,40% 16%,44% 6%,48% 16%,52% 6%,56% 16%,60% 6%,64% 16%,68% 6%,72% 16%,76% 6%,80% 16%,84% 6%,88% 16%,92% 6%,96% 16%,100% 6%,100% 100%,0 100%)}
#preloader.done .pl-top{transform:translateY(-104%)}
#preloader.done .pl-bottom{transform:translateY(104%)}
.pl-console{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;text-align:center;
  font-family:var(--mono);color:var(--ink);transition:opacity .35s ease;width:min(92vw,640px)}
#preloader.done .pl-console{opacity:0}
.pl-line{font-size:clamp(13px,2.2vw,20px);font-weight:700;letter-spacing:.01em}
.pl-caret{display:inline-block;color:var(--accent);animation:plcaret 1s step-end infinite}
@keyframes plcaret{50%{opacity:0}}
.pl-run{margin-top:14px;font-size:clamp(10px,1.4vw,12px);letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);min-height:1.2em}
.pl-run b{color:var(--accent);font-weight:700}
.pl-name{margin-top:22px;font-family:var(--sans);font-weight:700;letter-spacing:-.03em;line-height:.92;
  font-size:clamp(36px,8vw,104px);color:var(--ink);opacity:0;filter:blur(16px);transform:scale(.9)}
.pl-name.show{animation:nameIn .85s cubic-bezier(.2,.85,.25,1) forwards}
@keyframes nameIn{
  0%{opacity:0;filter:blur(18px);transform:scale(.9)}
  55%{opacity:1;filter:blur(0);transform:scale(1.03)}
  66%{transform:scale(1.03) translateX(-4px);text-shadow:4px 0 #ff3b3b,-4px 0 #00e0ff}
  72%{transform:scale(1.02) translateX(4px);text-shadow:-4px 0 #ff3b3b,4px 0 #00e0ff}
  80%{transform:scale(1) translateX(0);text-shadow:none}
  100%{opacity:1;filter:blur(0);transform:scale(1)}}

/* film-grain texture for depth (subtle, sits above everything, ignores clicks) */
body::after{content:"";position:fixed;inset:0;z-index:200;pointer-events:none;opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
html[data-theme="noir"] body::after,html[data-theme="cyan"] body::after{opacity:.055}

/* custom cursor over the pipeline (a travelling data-node) */
.cursor{position:fixed;left:0;top:0;z-index:300;pointer-events:none;transform:translate(-50%,-50%);
  opacity:0;transition:opacity .25s var(--ease)}
.cursor.on{opacity:1}
.cur-ring{display:block;width:30px;height:30px;border:1.5px solid var(--accent);border-radius:50%;position:relative;
  box-shadow:0 0 14px color-mix(in srgb,var(--accent) 55%,transparent);transition:transform .18s var(--spring)}
.cursor.click .cur-ring{transform:scale(.68)}
.cur-ring::after{content:"";position:absolute;inset:0;margin:auto;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.cur-label{position:absolute;left:50%;top:calc(100% + 7px);transform:translateX(-50%);
  font-family:var(--mono);font-size:9px;letter-spacing:.22em;color:var(--accent);white-space:nowrap}
@media (pointer:fine){.pipeline-hero .flow{cursor:none}}

/* cursor spotlight over the blueprint grid */
.spotlight{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:0;transition:opacity .5s var(--ease);
  background:radial-gradient(300px circle at var(--mx,50%) var(--my,50%),color-mix(in srgb,var(--accent) 11%,transparent),transparent 62%)}
body.cursor-active .spotlight{opacity:1}

/* scroll-fill on the vertical pipe + node activation */
.spine-fill{position:absolute;top:8px;left:calc(var(--rail) / 2);width:6px;height:0;transform:translateX(-50%);
  border-radius:99px;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 8%,transparent),color-mix(in srgb,var(--accent) 58%,transparent))}
.spine-fill::after{content:"";position:absolute;left:50%;bottom:-3px;transform:translateX(-50%);
  width:12px;height:12px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 14px 3px color-mix(in srgb,var(--accent) 60%,transparent)}
.chapter::before,.chapter::after{transition:border-color .45s var(--ease),background .45s var(--ease),box-shadow .45s var(--ease)}
.chapter.lit::before{border-color:var(--accent)}
.chapter.lit::after{background:var(--accent);box-shadow:0 0 12px color-mix(in srgb,var(--accent) 80%,transparent)}

/* card light-sheen (paired with the 3D tilt) */
.dep::after,.metric::after,.stackgroup::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:2;opacity:0;
  background:radial-gradient(180px circle at var(--sx,50%) var(--sy,50%),color-mix(in srgb,#fff 22%,transparent),transparent 60%);
  transition:opacity .3s var(--ease)}
.dep:hover::after,.metric:hover::after,.stackgroup:hover::after{opacity:1}
.dep,.metric,.stackgroup{transform-style:preserve-3d;will-change:transform}

/* View Transitions: circular theme wipe (graceful fallback to CSS crossfade) */
::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}
::view-transition-new(root){z-index:1}
::view-transition-old(root){z-index:0}

/* scroll-spy active nav item */
.topbar nav a.active{color:var(--ink);background:color-mix(in srgb,var(--ink) 9%,transparent)}

/* placeholder (not-yet-linked) project card */
.dep.is-soon{cursor:default}
.dep.is-soon:hover{transform:none}
.dep.is-soon .ext-pill{color:var(--muted)}

/* ---------- FOOTER ---------- */
footer.site{position:relative;z-index:2;border-top:var(--bw) solid var(--ink);
  padding:20px clamp(18px,3vw,40px);display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(9px)}
.social{display:flex;gap:8px}
.social a{width:40px;height:40px;display:grid;place-items:center;border-radius:var(--tag-radius);
  border:var(--bw) solid var(--hair);color:var(--ink);opacity:.95;text-decoration:none;
  background:color-mix(in srgb,var(--ink) 5%,transparent);
  transition:transform .25s var(--spring),opacity .25s,border-color .25s,background .25s}
.social a svg{width:18px;height:18px}
.social a:hover{opacity:1;transform:translateY(-3px);border-color:var(--accent);
  background:color-mix(in srgb,var(--accent) 16%,transparent)}
/* section-04 metric numbers pop in */
.metric b{display:inline-block}
@keyframes metricPop{0%{transform:scale(.45);opacity:0}60%{transform:scale(1.12);opacity:1}100%{transform:scale(1)}}
.metric b.pop{animation:metricPop .8s var(--spring) both}
/* compact, refined ghost social row in the top bar */
.social-top{gap:2px;padding-right:6px;margin-right:6px;border-right:1px solid var(--hair)}
.social-top a{width:32px;height:32px;border:0!important;background:none!important;color:var(--muted);opacity:1;border-radius:8px}
.social-top a svg{width:16px;height:16px}
.social-top a:hover{color:var(--accent);background:color-mix(in srgb,var(--accent) 14%,transparent)!important;transform:translateY(-2px)}
@media (max-width:1080px){.social-top{display:none}}
.foot-meta{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.06em}
/* UPI QR lightbox */
.upi-modal{position:fixed;inset:0;z-index:140;display:flex;align-items:center;justify-content:center;padding:24px;
  background:color-mix(in srgb,#0a0c14 66%,transparent);backdrop-filter:blur(7px);animation:upiIn .25s var(--ease) both}
.upi-modal[hidden]{display:none}
.upi-img{max-width:min(420px,92vw);max-height:88vh;width:auto;height:auto;border-radius:18px;
  box-shadow:0 26px 80px rgba(0,0,0,.45);animation:upiPop .3s var(--spring) both}
.upi-x{position:absolute;top:18px;right:20px;width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;
  font-size:24px;line-height:1;color:#fff;background:rgba(0,0,0,.42);transition:background .2s,transform .2s}
.upi-x:hover{background:rgba(0,0,0,.62);transform:scale(1.06)}
@keyframes upiIn{from{opacity:0}to{opacity:1}}
@keyframes upiPop{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}
/* footer as a TV headline strip (all modes) */
footer.site.ticker{display:block;overflow:hidden;white-space:nowrap;padding:14px 0;line-height:1}
.tk-track{display:inline-block;animation:tkscroll 38s linear infinite;will-change:transform}
footer.site.ticker:hover .tk-track{animation-play-state:paused}
.tk-i{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding:0 16px;vertical-align:middle}
.tk-s{color:var(--accent);font-size:10px;vertical-align:middle;opacity:.85}
.tk-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@keyframes tkscroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion: reduce){.tk-track{animation:none}}
/* ===== notes (blog) + extension detail pages ===== */
.crumbs{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted);text-decoration:none;border-bottom:1px solid var(--hair)}
.crumbs a:hover{color:var(--accent)}
.crumbs i{margin:0 8px;opacity:.45;font-style:normal}
.notes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px;margin-top:6px}
.note-card{display:block;text-decoration:none;color:inherit;border:var(--bw) solid var(--ink);border-radius:var(--card-radius);
  background:var(--paper2);box-shadow:var(--card-shadow);padding:24px;transition:transform .25s var(--spring)}
.note-card:hover{transform:translate(-3px,-3px)}
.note-card .nt{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.note-card h3{font-size:21px;margin:8px 0 8px;letter-spacing:-.01em}
.note-card p{color:var(--muted);line-height:1.6;font-size:15px;margin:0}
.note-card .more{display:inline-block;margin-top:14px;font-weight:600;color:var(--accent);font-size:14px}
.prose{max-width:70ch}
.prose p{font-size:17px;line-height:1.75;color:var(--ink);margin:0 0 20px}
.prose h2{font-size:clamp(22px,3vw,30px);margin:38px 0 14px;letter-spacing:-.01em}
.prose h3{font-size:19px;margin:26px 0 10px}
.prose ul{margin:0 0 20px;padding-left:22px}
.prose li{font-size:17px;line-height:1.72;margin-bottom:8px}
.prose code{font-family:var(--mono);font-size:.9em;background:color-mix(in srgb,var(--ink) 9%,transparent);padding:2px 6px;border-radius:6px}
.post-meta{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.08em;margin-bottom:10px}
.ext-cta{display:flex;gap:12px;flex-wrap:wrap;margin:6px 0 32px}
.feature-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:10px}
.feature{border:var(--bw) solid var(--hair);border-radius:var(--card-radius);padding:20px;background:color-mix(in srgb,var(--ink) 3%,transparent)}
.feature h3{font-size:17px;margin:0 0 6px}
.feature p{color:var(--muted);font-size:14px;line-height:1.6;margin:0}
.editnote{font-size:13px;color:var(--muted);border-left:3px solid var(--accent);padding:8px 14px;margin:0 0 20px;background:color-mix(in srgb,var(--accent) 7%,transparent)}

/* ---------- GUMROAD PRICING (extension detail pages) ---------- */
.pricing-lead{color:var(--muted);font-size:15px;line-height:1.6;max-width:62ch;margin:0 0 18px}
.prices{display:grid;grid-template-columns:repeat(auto-fit,minmax(248px,1fr));gap:16px;margin-bottom:8px}
.prices:empty{display:none}
.price-card{display:flex;flex-direction:column;text-decoration:none;color:inherit;
  border:var(--bw) solid var(--ink);border-radius:var(--card-radius);background:var(--paper2);
  box-shadow:var(--card-shadow);padding:20px 22px 22px;
  transition:transform .3s var(--spring),background-color .5s ease,border-color .35s var(--ease),box-shadow .35s var(--ease)}
.price-card:hover{transform:translate(-3px,-3px);border-color:color-mix(in srgb,var(--accent) 55%,var(--ink))}
.price-card.primary{background:var(--ink)}
.price-card.primary,.price-card.primary .pc-amt,.price-card.primary .cta{color:var(--paper)}
.price-card.primary p,.price-card.primary .pc-note{color:color-mix(in srgb,var(--paper) 68%,transparent)}
.price-card.primary .cta{border-bottom-color:var(--paper)}
.pc-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}
.pc-top b{font-size:18px;font-weight:700;letter-spacing:-.01em}
.pc-amt{font-family:var(--mono);font-size:16px;font-weight:700;color:var(--accent);white-space:nowrap}
.price-card p{font-size:13.5px;color:var(--muted);line-height:1.55;margin:12px 0 0}
.pc-note{font-family:var(--mono);font-size:11px;letter-spacing:.04em;color:var(--muted);margin-top:14px}
.price-card .cta{margin-top:14px}
/* "Pro available" pill on the Work card */
.pro-pill{font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:700;
  color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 45%,var(--hair));border-radius:999px;
  padding:2px 9px;line-height:1.5;background:color-mix(in srgb,var(--accent) 10%,transparent)}

/* ===================================================================
   HOME — the pipeline schematic
   =================================================================== */
.shell{position:relative;z-index:2;height:100vh;display:flex;flex-direction:column}
.home-main{flex:1;display:flex;flex-direction:column;min-height:0;padding:22px clamp(18px,3vw,40px) 0}
.home-head{margin-bottom:8px}
.home-head .eye{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--accent);text-transform:uppercase}
.home-head h1{font-size:clamp(28px,3.4vw,48px);font-weight:700;letter-spacing:-.02em;line-height:1;margin-top:8px}
.home-head .sub{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.04em;margin-top:8px}

.flow{flex:1;display:grid;grid-template-columns:repeat(5,1fr);align-items:stretch;min-height:0;position:relative}
.pipe{position:absolute;left:0;right:0;top:50%;height:10px;transform:translateY(-50%);
  background:var(--pipe-bg);border:var(--bw) solid var(--ink);border-radius:var(--pipe-radius);overflow:hidden}
.pipe::before{content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,transparent 0 22px,var(--pipe-fill) 22px 30px);
  animation:flowdash 1.1s linear infinite}
@keyframes flowdash{to{transform:translateX(-30px)}}
.dot{position:absolute;top:50%;width:var(--dot-size);height:var(--dot-size);border-radius:50%;
  background:var(--dot-bg);box-shadow:var(--dot-glow);transform:translateY(-50%);animation:travel 6s linear infinite}
@keyframes travel{from{left:-2%}to{left:102%}}

.stage{position:relative;height:100%;padding:0 10px}
.node{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:22px;height:22px;border-radius:50%;
  background:var(--paper);border:2.5px solid var(--ink);z-index:3;display:grid;place-items:center}
.node::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--node-dot);box-shadow:var(--node-glow)}
.leg{position:absolute;left:50%;transform:translateX(-50%);width:1.5px;background:var(--ink);z-index:1;opacity:.85}
.stage:nth-child(odd) .leg{bottom:50%;height:40px}
.stage:nth-child(even) .leg{top:50%;height:40px}
.card{position:absolute;left:50%;transform:translateX(-50%);width:calc(100% - 24px);max-width:236px;
  background:var(--paper2);border:var(--bw) solid var(--ink);border-radius:var(--card-radius);padding:16px;box-shadow:var(--card-shadow)}
.stage:nth-child(odd) .card{bottom:calc(50% + 44px)}
.stage:nth-child(even) .card{top:calc(50% + 44px)}
.card .sn{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.1em;display:flex;justify-content:space-between;
  font-weight:var(--sn-weight);border-bottom:var(--sn-bb);padding-bottom:8px}
.card h3{font-size:18px;font-weight:700;letter-spacing:-.01em;margin:10px 0 8px}
.card p{font-size:12.5px;color:var(--muted);line-height:1.5}
.tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:10px}
.tags b{font-family:var(--mono);font-weight:400;font-size:10.5px;border:1px solid var(--tag-border);padding:3px 7px;border-radius:var(--tag-radius);color:var(--ink)}
.cta{display:inline-flex;margin-top:10px;font-family:var(--mono);font-size:12px;color:var(--accent);text-decoration:none;
  border-bottom:1.5px solid var(--accent);padding-bottom:2px;font-weight:var(--cta-weight)}

/* ===================================================================
   INNER PAGES — shared
   =================================================================== */
.page{position:relative;z-index:2;max-width:1180px;margin:0 auto;padding:clamp(34px,6vw,76px) clamp(18px,4vw,40px) 90px}
/* keep the footer pinned to the bottom on short pages */
body > main{flex:1 0 auto}
body > .page{width:100%}
.phead{margin-bottom:42px}
.phead .eye{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--accent);text-transform:uppercase}
.phead h1{font-size:clamp(34px,5.4vw,64px);font-weight:700;letter-spacing:-.025em;line-height:1.02;margin-top:14px}
.phead p{color:var(--muted);font-size:16px;line-height:1.55;margin-top:14px;max-width:56ch;text-wrap:pretty}

.note{display:flex;align-items:flex-start;gap:11px;font-family:var(--mono);font-size:12px;line-height:1.5;color:var(--muted);
  border:1px dashed var(--tag-border);border-radius:var(--tag-radius);padding:13px 15px;margin-bottom:36px}
.note b{color:var(--ink);font-weight:700}
.note .mk{color:var(--accent);font-weight:700}

.sec-label{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  display:flex;align-items:center;gap:12px;margin:0 0 22px}
.sec-label::after{content:"";flex:1;height:1px;background:var(--hair)}

/* ---------- WORK ---------- */
.grid-work{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.proj{display:flex;flex-direction:column;background:var(--paper2);border:var(--bw) solid var(--ink);
  border-radius:var(--card-radius);box-shadow:var(--card-shadow);overflow:hidden;
  transition:transform .3s cubic-bezier(.16,1,.3,1),box-shadow .3s}
.proj:hover{transform:translateY(-4px)}
.proj .shot{position:relative;aspect-ratio:16/9;border-bottom:var(--bw) solid var(--ink);background:
  repeating-linear-gradient(45deg,color-mix(in srgb,var(--ink) 5%,transparent) 0 10px,transparent 10px 20px)}
.proj .shot image-slot{position:absolute;inset:0;width:100%;height:100%}
.proj .pbody{padding:18px 20px 20px}
.proj .sn{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.1em;display:flex;justify-content:space-between;
  font-weight:var(--sn-weight);border-bottom:var(--sn-bb);padding-bottom:9px}
.proj h3{font-size:21px;font-weight:700;letter-spacing:-.01em;margin:12px 0 9px}
.proj p{font-size:13.5px;color:var(--muted);line-height:1.55}
.proj .cta{margin-top:14px}

/* ---------- ABOUT ---------- */
.about-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(30px,5vw,64px);align-items:start;margin-bottom:60px}
.bio p{font-size:16px;line-height:1.7;color:var(--ink);margin-bottom:16px;text-wrap:pretty}
.bio p.dim{color:var(--muted)}
.portrait{position:relative;aspect-ratio:4/5;border:var(--bw) solid var(--ink);border-radius:var(--card-radius);
  box-shadow:var(--card-shadow);overflow:hidden;background:
  repeating-linear-gradient(45deg,color-mix(in srgb,var(--ink) 5%,transparent) 0 10px,transparent 10px 20px)}
.portrait image-slot{position:absolute;inset:0;width:100%;height:100%}

.timeline{display:flex;flex-direction:column;gap:0;margin-bottom:60px}
.tl{display:grid;grid-template-columns:120px 1fr;gap:22px;padding:20px 0;border-top:1px solid var(--hair)}
.tl:last-child{border-bottom:1px solid var(--hair)}
.tl .yr{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.04em;padding-top:3px}
.tl h4{font-size:18px;font-weight:700;letter-spacing:-.01em;margin-bottom:6px}
.tl p{font-size:14px;color:var(--muted);line-height:1.6;max-width:60ch}

.stack-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.stackgroup{border:var(--bw) solid var(--ink);border-radius:var(--card-radius);padding:18px 18px 20px;background:var(--paper2);box-shadow:var(--card-shadow)}
.stackgroup .gt{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--accent);text-transform:uppercase;margin-bottom:13px}
.stackgroup .tags b{font-size:12px;padding:5px 9px}

/* ---------- CONTACT ---------- */
.contact{max-width:760px}
.contact .lead{font-size:clamp(18px,2.3vw,22px);line-height:1.6;color:var(--ink);margin-bottom:30px;text-wrap:pretty}
.bigmail{position:relative;display:inline-flex;background:var(--ink);border-radius:var(--card-radius);
  box-shadow:var(--card-shadow);transition:transform .25s var(--spring)}
.bigmail:hover{transform:translate(-2px,-2px)}
.bigmail-link{display:inline-flex;align-items:center;gap:14px;text-decoration:none;color:var(--paper);
  font-family:var(--mono);font-size:clamp(15px,2.2vw,20px);font-weight:700;padding:18px 46px 18px 26px}
.bigmail-link svg{width:22px;height:22px}
/* copy icon lives inside the email box, revealed on hover */
.copybtn-in{position:absolute;right:12px;top:50%;transform:translateY(-50%);width:30px;height:30px;display:grid;place-items:center;
  border:0;background:transparent;color:var(--paper);cursor:pointer;opacity:0;transition:opacity .2s var(--ease)}
.copybtn-in svg{width:17px;height:17px}
.bigmail:hover .copybtn-in{opacity:.6}
.copybtn-in:hover,.copybtn-in.copied{opacity:1}
.copybtn-in.copied::after{content:"Copied";position:absolute;bottom:calc(100% + 6px);right:0;font-family:var(--mono);font-size:10px;
  letter-spacing:.06em;background:var(--paper);color:var(--ink);padding:3px 7px;border-radius:5px;white-space:nowrap}
.contact-row{display:flex;flex-wrap:wrap;gap:34px;margin-top:46px;padding-top:30px;border-top:1px solid var(--hair)}
.cblock .ct{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.cblock .av{font-size:13px}

/* ---------- RESPONSIVE ---------- */
@media (max-width:920px){
  .topbar nav{display:none}
  .grid-work{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .stack-grid{grid-template-columns:1fr}
  .switch button span{display:none}
  /* bigger, easier-to-hit colour-mode trigger on touch screens */
  .theme-btn{height:42px;padding:0 14px}
  .theme .switch button{padding:12px 12px}
}
@media (max-width:560px){
  .tl{grid-template-columns:1fr;gap:6px}
  .brand .bn small{display:none}
}
@media (prefers-reduced-motion: reduce){.pipe::before,.dot,.av .d{animation:none}}

/* ===================================================================
   IMMERSIVE HOME — the pipeline, scrolled vertically (duckmartians-style)
   Identity hero → numbered chapters down a flowing pipe → Fuel section.
   =================================================================== */
/* centered reading column (duckmartians-style) — wider than the original
   1120 cap, but not full-bleed. Tune --worldw to taste. */
main.world{--worldw:1440px;position:relative;z-index:2;max-width:var(--worldw);
  margin:0 auto;padding:0 clamp(18px,3vw,40px)}

/* horizontal pipeline schematic as the landing screen (original design, now scrollable) */
/* fill exactly the viewport below the sticky top bar, so the next section
   doesn't peek — only the moving pipeline + the scroll cue are in view */
.pipeline-hero{min-height:calc(100vh - 64px);display:flex;flex-direction:column;padding:18px 0 24px}
.pipeline-hero .home-head{margin-bottom:8px}
.pipeline-hero .scrollcue{margin-top:14px;align-self:flex-start}
/* clickable stage cards → jump to the matching chapter */
.stage a.card{display:block;text-decoration:none;color:inherit;cursor:pointer;
  transition:transform .28s cubic-bezier(.16,1,.3,1),background-color .5s ease,color .5s ease,border-color .5s ease,box-shadow .5s ease}
.stage:nth-child(odd) a.card:hover,.stage:nth-child(even) a.card:hover{transform:translateX(-50%) translateY(-5px)}

/* smooth retheme for the new chrome */
.btn,.dep,.metric,.fuel-btn,.hero-pipe,.ch-no,.ch-head h2{
  transition:background-color .5s ease,color .5s ease,border-color .5s ease,box-shadow .5s ease}

/* ---------- HERO / IDENTITY ---------- */
.hero{min-height:clamp(540px,88vh,840px);display:flex;flex-direction:column;justify-content:center;
  padding:48px 0 28px;position:relative}
.hero .desig{font-family:var(--mono);font-size:clamp(11px,1.3vw,13px);letter-spacing:.22em;
  text-transform:uppercase;color:var(--accent)}
.hero h1{font-size:clamp(54px,12vw,158px);font-weight:700;letter-spacing:-.04em;line-height:.86;margin:16px 0 0}
.hero .role{font-family:var(--mono);font-size:clamp(12px,1.5vw,15px);color:var(--muted);letter-spacing:.02em;
  max-width:58ch;line-height:1.7;margin-top:24px}
.hero .role b{color:var(--ink);font-weight:700}
.hero-pipe{position:relative;height:10px;width:min(520px,82%);margin-top:38px;
  background:var(--pipe-bg);border:var(--bw) solid var(--ink);border-radius:var(--pipe-radius);overflow:hidden}
.hero-pipe::before{content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(90deg,transparent 0 22px,var(--pipe-fill) 22px 30px);
  animation:flowdash 1.1s linear infinite}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:36px}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:13px;
  font-weight:var(--cta-weight);text-decoration:none;color:var(--ink);padding:13px 20px;
  border:var(--bw) solid var(--ink);border-radius:var(--card-radius);box-shadow:var(--card-shadow)}
.btn:hover{transform:translate(-2px,-2px)}
.btn.primary{background:var(--ink);color:var(--paper)}
.scrollcue{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin-top:46px;animation:bob 2.2s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(6px);opacity:.45}}

/* ---------- CHAPTERS + FLOWING PIPE SPINE ---------- */
.chapters{position:relative;--rail:clamp(30px,6vw,76px)}
/* casing — same 10px thin tube as the hero .pipe */
.chapters::before{content:"";position:absolute;top:6px;bottom:150px;left:calc(var(--rail) / 2);width:10px;
  transform:translateX(-50%);background:var(--pipe-bg);border:var(--bw) solid var(--ink);
  border-radius:var(--pipe-radius);overflow:hidden}
/* flowing dashes — 6px strip inside the casing, mirrors .pipe::before exactly */
.chapters::after{content:"";position:absolute;top:8px;bottom:152px;left:calc(var(--rail) / 2);width:6px;
  transform:translateX(-50%);pointer-events:none;
  background:repeating-linear-gradient(180deg,transparent 0 22px,var(--pipe-fill) 22px 30px);
  animation:flowdownY 1.1s linear infinite}
@keyframes flowdownY{to{transform:translateX(-50%) translateY(-30px)}}

.chapter{position:relative;padding:56px 0 56px var(--rail);scroll-margin-top:80px}
/* the last section needs room to reach the top, or the previous section peeks above it */
#fuel{min-height:calc(100vh - 72px)}
.chapter::before{content:"";position:absolute;left:calc(var(--rail) / 2);top:70px;transform:translate(-50%,-50%);
  width:22px;height:22px;border-radius:50%;background:var(--paper);border:2.5px solid var(--ink);z-index:2}
.chapter::after{content:"";position:absolute;left:calc(var(--rail) / 2);top:70px;transform:translate(-50%,-50%);
  width:8px;height:8px;border-radius:50%;background:var(--node-dot);box-shadow:var(--node-glow);z-index:3}

.ch-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:20px}
.ch-no{font-family:var(--mono);font-size:clamp(30px,5vw,56px);font-weight:700;line-height:1;
  color:var(--accent);letter-spacing:-.02em;flex:none}
.ch-tag{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.ch-head h2{font-size:clamp(26px,3.6vw,42px);font-weight:700;letter-spacing:-.02em;line-height:1.04;margin-top:5px}
.ch-lead{font-size:16px;color:var(--muted);line-height:1.6;max-width:62ch;margin-bottom:26px;text-wrap:pretty}
.chapter .cta{margin-top:24px}

/* metrics (chapter 03) */
.metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.metric{border:var(--bw) solid var(--ink);border-radius:var(--card-radius);padding:18px;
  background:var(--paper2);box-shadow:var(--card-shadow)}
.metric b{display:block;font-family:var(--mono);font-size:clamp(24px,3vw,34px);font-weight:700;
  letter-spacing:-.02em;color:var(--accent)}
.metric span{display:block;font-size:12px;color:var(--muted);line-height:1.4;margin-top:6px}

/* deployments (chapter 04) */
.dep-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.dep{display:block;background:var(--paper2);border:var(--bw) solid var(--ink);border-radius:var(--card-radius);
  box-shadow:var(--card-shadow);padding:20px 22px 22px;text-decoration:none;color:inherit;
  transition:transform .3s cubic-bezier(.16,1,.3,1),background-color .5s ease,border-color .5s ease,box-shadow .5s ease}
.dep:hover{transform:translateY(-4px)}
.dep .sn{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.08em;display:flex;
  justify-content:space-between;gap:10px;font-weight:var(--sn-weight);border-bottom:var(--sn-bb);padding-bottom:9px}
.dep h3{font-size:19px;font-weight:700;letter-spacing:-.01em;margin:12px 0 8px}
.dep p{font-size:13px;color:var(--muted);line-height:1.55}
.dep .tags{margin-top:12px}
/* logo-led deployment cards (duckmartians-style) */
.dep-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.dep .logo{width:46px;height:46px;border-radius:var(--tag-radius);display:grid;place-items:center;flex:none;
  font-family:var(--mono);font-weight:700;font-size:15px;color:#fff;border:var(--bw) solid var(--ink);letter-spacing:-.02em;overflow:hidden}
.dep .logo.logo-img{background:#fff;padding:4px}
.dep .logo img{width:100%;height:100%;object-fit:contain;border-radius:inherit;display:block}
.dep .ext-pill{font-family:var(--mono);font-size:10.5px;letter-spacing:.04em;color:var(--accent);white-space:nowrap;
  border:1px solid var(--hair);border-radius:999px;padding:5px 11px;transition:border-color .25s,color .25s}
.dep:hover .ext-pill{border-color:var(--accent)}

/* traveling packets on the vertical spine — same look as the hero pipe */
.vdot{position:absolute;left:calc(var(--rail) / 2);width:var(--dot-size);height:var(--dot-size);
  border-radius:50%;background:var(--dot-bg);box-shadow:var(--dot-glow);transform:translateX(-50%);
  animation:traveldown 6s linear infinite;z-index:1;pointer-events:none}
@keyframes traveldown{from{top:0}to{top:calc(100% - 150px)}}

/* fuel / support (chapter 05) */
.fuel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;max-width:640px;margin-bottom:42px}
.fuel-btn{display:flex;align-items:center;gap:13px;padding:15px 17px;border:var(--bw) solid var(--ink);
  border-radius:var(--card-radius);background:var(--paper2);box-shadow:var(--card-shadow);
  text-decoration:none;color:var(--ink);transition:transform .25s,background-color .5s ease,border-color .5s ease}
.fuel-btn:hover{transform:translate(-2px,-2px)}
.fuel-btn .ico{width:38px;height:38px;flex:none;display:grid;place-items:center;border-radius:var(--tag-radius);
  border:1px solid var(--hair);background:color-mix(in srgb,var(--accent) 14%,transparent)}
.fuel-btn .ico svg{width:20px;height:20px;color:var(--accent)}
.fuel-btn .ft{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.fuel-btn .ft b{font-family:var(--mono);font-size:13px;font-weight:700}
.fuel-btn .ft small{font-size:11px;color:var(--muted);margin-top:3px}
.fuel-btn.primary{background:var(--ink);border-color:var(--ink)}
.fuel-btn.primary .ft b{color:var(--dk-coffee-ink)}
.fuel-btn.primary .ft small{color:color-mix(in srgb,var(--dk-coffee-ink) 65%,transparent)}
.fuel-btn.primary .ico{background:color-mix(in srgb,var(--dk-coffee-ink) 16%,transparent);border-color:transparent}
.fuel-btn.primary .ico svg{color:var(--dk-coffee-ink)}

.output-contact{border-top:1px solid var(--hair);padding-top:34px}
.oc-label{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:16px}
.output-contact .bigmail{margin-bottom:20px}
.output-contact .av{font-size:13px}

/* scroll reveal — only hide when JS is on (no-JS users see everything) */
.js .reveal{opacity:0;transform:translateY(26px);
  transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1)}
.js .reveal.in{opacity:1;transform:none}

/* ---------- IMMERSIVE RESPONSIVE ---------- */
@media (max-width:920px){
  .dep-grid{grid-template-columns:1fr}
  .metric-row{grid-template-columns:repeat(2,1fr)}
  .fuel-grid{grid-template-columns:1fr}
}
@media (max-width:760px){
  /* the horizontal 5-stage schematic needs width; on phones the vertical
     chapters below carry the same content, so collapse the hero to its label */
  .pipeline-hero{min-height:auto;padding-bottom:26px}
  .flow{display:none}
}
@media (max-width:560px){
  .chapters{--rail:24px}
  .ch-head{gap:12px}
}
@media (prefers-reduced-motion: reduce){
  .hero-pipe::before,.chapters::after,.scrollcue,.vdot,.av .d::after{animation:none}
  .av .d::after{display:none}
  .js .reveal{opacity:1;transform:none;transition:none}
  .js .pipeline-hero .home-head .eye,.js .pipeline-hero .home-head h1,
  .js .pipeline-hero .home-head .sub,.js .pipeline-hero .flow,
  .js .pipeline-hero .scrollcue{animation:none!important;opacity:1!important}
  .pl-mark,.pl-fill::after{animation:none!important}
}