/* Andrew Tabb - personal one-page portfolio (tabblabs.net/andrew).
   DISTINCT from the Tabb Labs company site (../index.html, dark v4). This is a LIGHT, rich
   multi-hue gradient FIELD per the accepted recipe: ~14 soft, big, OVERLAPPING radial blooms
   (transparent ~74%) on a tinted base, cool top -> violet/green mid -> one warm amber accent low.
   No line art. Clean type, generous spacing, white cards floating over the field.
   Field passes kit/check-gradient-presence.cjs (>=8 blooms, strong blooms, tinted base). */

:root {
  --ink: #171423;
  --ink-soft: #453f59;
  --ink-faint: #7b7492;
  --line: rgba(23, 20, 35, 0.10);
  --line-soft: rgba(23, 20, 35, 0.07);
  --card: rgba(255, 255, 255, 0.74);
  --card-solid: rgba(255, 255, 255, 0.86);
  --accent: #5b3df5;
  --accent2: #e0487f;
  --accent3: #37b6d6;
  --ok: #0f8a4e;
  --sans: 'Segoe UI', system-ui, -apple-system, Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  --maxw: 1080px;
  --r: 22px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans); color: var(--ink); line-height: 1.6;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  background: #efe9f8; position: relative; overflow-x: hidden;
}

/* ---- the light rich multi-hue gradient FIELD (14 overlapping blooms + tinted base) ---- */
/* horizontal inset kept at 0 so the field never widens the page (an -8% h-bleed added ~8%
   horizontal scroll: 115px @1440 / 31px @390). Vertical bleed is safe (body clips overflow-x). */
body::before {
  content: ""; position: absolute; inset: -6% 0 -4% 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(1300px 1180px at 16% 3%,  rgba(120, 92, 255, 0.34), transparent 74%),
    radial-gradient(1200px 1100px at 84% 6%,  rgba(90, 190, 235, 0.30), transparent 74%),
    radial-gradient(1150px 1050px at 46% 12%, rgba(150, 120, 255, 0.26), transparent 74%),
    radial-gradient(1250px 1150px at 92% 20%, rgba(255, 120, 175, 0.24), transparent 74%),
    radial-gradient(1200px 1100px at 8%  27%, rgba(120, 150, 255, 0.26), transparent 74%),
    radial-gradient(1350px 1240px at 62% 32%, rgba(150, 205, 235, 0.24), transparent 74%),
    radial-gradient(1200px 1100px at 30% 40%, rgba(170, 130, 255, 0.24), transparent 74%),
    radial-gradient(1250px 1150px at 86% 47%, rgba(120, 220, 200, 0.22), transparent 74%),
    radial-gradient(1350px 1230px at 12% 55%, rgba(150, 122, 250, 0.27), transparent 74%),
    radial-gradient(1300px 1200px at 58% 62%, rgba(115, 205, 200, 0.26), transparent 74%),
    radial-gradient(1550px 1420px at 86% 70%, rgba(255, 165, 110, 0.31), transparent 76%),
    radial-gradient(1500px 1380px at 20% 74%, rgba(150, 118, 255, 0.31), transparent 76%),
    radial-gradient(1300px 1200px at 68% 84%, rgba(255, 140, 185, 0.28), transparent 74%),
    radial-gradient(1600px 1460px at 82% 88%, rgba(110, 195, 238, 0.29), transparent 76%),
    radial-gradient(1550px 1420px at 40% 92%, rgba(255, 158, 120, 0.30), transparent 76%),
    radial-gradient(1300px 1200px at 30% 96%, rgba(180, 135, 255, 0.26), transparent 74%),
    linear-gradient(168deg, #ece6f7 0%, #e6eefb 38%, #e9e2f4 70%, #efe6f2 100%);
  background-repeat: no-repeat;
}

.wrap { width: min(var(--maxw), 92vw); margin: 0 auto; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.mono {
  font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.15em;
  font-size: 0.7rem; font-weight: 700; color: var(--ink-faint);
}

.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff;
  padding: 10px 16px; border-radius: 0 0 10px 0; z-index: 60; font-weight: 700; }
.skip:focus { left: 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---- header ---- */
header { position: sticky; top: 0; z-index: 30; padding: 16px 0;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  background: rgba(243, 239, 251, 0.6); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.05rem; letter-spacing: -0.02em; }
.brand .spark { width: 26px; height: 26px; border-radius: 8px; flex: none;
  background: conic-gradient(from 210deg, var(--accent), var(--accent2), var(--accent3), var(--accent));
  box-shadow: 0 4px 14px rgba(91, 61, 245, 0.35); }
nav ul { display: flex; gap: 24px; list-style: none; font-weight: 600; font-size: 0.9rem; }
nav a { color: var(--ink-soft); } nav a:hover { color: var(--ink); }
.pill { padding: 9px 16px; border-radius: 999px; background: var(--ink); color: #fff;
  font-weight: 700; font-size: 0.86rem; box-shadow: 0 8px 20px rgba(23, 20, 35, 0.22); }

/* ---- hero ---- */
.hero { padding: 92px 0 40px; text-align: center; }
.hero .eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 7px 15px;
  border-radius: 999px; background: rgba(255, 255, 255, 0.62); border: 1px solid var(--line); margin-bottom: 26px; }
.hero h1 { font-size: clamp(2.7rem, 7vw, 5rem); line-height: 1.0; letter-spacing: -0.035em; font-weight: 800; }
.hero h1 .grad { background: linear-gradient(120deg, var(--accent), var(--accent2) 62%, var(--accent3));
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .role { max-width: 640px; margin: 22px auto 0; font-size: 1.16rem; font-weight: 600; color: var(--ink-soft); }
.hero .lede { max-width: 620px; margin: 14px auto 0; font-size: 1.08rem; color: var(--ink-soft); font-style: italic; }
.hero .cta { display: flex; gap: 14px; justify-content: center; margin-top: 34px; flex-wrap: wrap; }

.btn { padding: 13px 26px; border-radius: 14px; font-weight: 700; font-size: 0.98rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease; }
.btn-solid { background: var(--ink); color: #fff; box-shadow: 0 14px 30px rgba(23, 20, 35, 0.25); }
.btn-solid:hover { transform: translateY(-2px); }
.btn-ghost { background: rgba(255, 255, 255, 0.7); border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { transform: translateY(-2px); border-color: rgba(91, 61, 245, 0.32); }

/* ---- generic section ---- */
section.block { padding: 40px 0; }
.sec-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.sec-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); letter-spacing: -0.03em; font-weight: 800; }
.sec-head .mono { margin-left: auto; }
.lead-line { max-width: 62ch; color: var(--ink-soft); font-size: 1.05rem; margin: -8px 0 26px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 46px rgba(60, 40, 120, 0.12); }

/* ---- pendo proof (the differentiator) ---- */
.pendo .card { padding: 40px 44px; }
.pendo .kicker { display: inline-flex; align-items: center; gap: 9px; padding: 6px 13px; border-radius: 999px;
  background: linear-gradient(120deg, rgba(91, 61, 245, 0.12), rgba(224, 72, 127, 0.12));
  border: 1px solid var(--line); font-weight: 700; font-size: 0.8rem; color: var(--accent); margin-bottom: 18px; }
.proof-list { display: grid; gap: 18px; margin-top: 8px; }
.proof-item { display: flex; gap: 16px; align-items: flex-start; }
.proof-item .k { width: 30px; height: 30px; border-radius: 9px; flex: none; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; font-weight: 800; font-size: 0.82rem;
  box-shadow: 0 6px 16px rgba(91, 61, 245, 0.28); }
.proof-item .txt { font-size: 1.02rem; color: var(--ink-soft); }
.proof-item .txt b { color: var(--ink); font-weight: 750; }

/* ---- live products ---- */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.pcard { position: relative; display: block; overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease; }
a.pcard:hover { transform: translateY(-6px); box-shadow: 0 34px 64px rgba(60, 40, 120, 0.18); border-color: rgba(91, 61, 245, 0.3); }
.shot { aspect-ratio: 16 / 10; overflow: hidden; border-bottom: 1px solid var(--line); background: #ecebf4; }
.shot img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.logohero { display: grid; place-items: center; }
.lh-hs { background: radial-gradient(120% 120% at 50% 18%, #2a1030, #140720); }
.lh-hs .word { font-weight: 900; font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -0.02em;
  background: linear-gradient(100deg, #ff6a8f, #c56bff); -webkit-background-clip: text; background-clip: text;
  color: transparent; text-shadow: 0 0 40px rgba(200, 90, 220, 0.3); }
.pmeta { padding: 24px 26px 26px; }
.prow { display: flex; align-items: center; gap: 14px; }
.tile { width: 44px; height: 44px; border-radius: 12px; flex: none; box-shadow: 0 6px 16px rgba(40, 30, 90, 0.18); }
.mono-tile { display: grid; place-items: center; font-family: var(--mono); font-weight: 800; font-size: 0.9rem; color: #fff; }
.t-hs { background: linear-gradient(135deg, #e04f7a, #7a2ea8); }
.idx { font-family: var(--mono); font-size: 0.72rem; color: var(--ink-faint); letter-spacing: 0.12em; }
.prow h3 { font-size: 1.34rem; letter-spacing: -0.02em; font-weight: 800; }
.what { margin-top: 13px; color: var(--ink-soft); font-size: 0.98rem; }
.go { margin-top: 16px; display: inline-flex; gap: 8px; font-weight: 700; font-size: 0.92rem; color: var(--accent); }
.badge { position: absolute; top: 16px; right: 16px; font-family: var(--mono); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.13em; padding: 6px 11px; border-radius: 999px; display: inline-flex; align-items: center; gap: 7px;
  background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(6px); box-shadow: 0 4px 12px rgba(40, 30, 90, 0.16); }
.badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }
.badge { color: var(--ok); }

/* in-progress product group: quieter, honestly not-yet-shipped */
.grp-head { margin-top: 40px; }
.grp-head h2 { color: var(--ink-soft); }
.pcard.muted { opacity: 0.9; filter: saturate(0.7); background: rgba(255, 255, 255, 0.6); }
.pcard.muted .prow h3 { color: var(--ink-soft); }
.pcard.muted:hover { transform: none; box-shadow: 0 20px 46px rgba(60, 40, 120, 0.12); }
.t-tb { background: linear-gradient(135deg, #8a8298, #5f5872); }
.t-dive { background: linear-gradient(135deg, #7d8aa6, #59647e); }
.badge.dev { color: var(--ink-faint); }
.badge.dev::before { background: var(--ink-faint); }

/* ---- the system I built: connected ARCHITECTURE CHART (pinned, scroll-assembled) ---- */
.sys-head { text-align: center; margin-bottom: 26px; }
.sys-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); letter-spacing: -0.03em; font-weight: 800; margin-top: 8px; }
.sys-sub { max-width: 60ch; margin: 12px auto 0; color: var(--ink-soft); font-size: 1.05rem; }
.sys-stats { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 10px; margin-top: 16px; }
.sys-stats span { padding: 5px 13px; border-radius: 999px; background: rgba(255, 255, 255, 0.62);
  font-size: 0.82rem; font-weight: 600; color: var(--ink-soft); }
.sys-stats b { font-weight: 800; background: linear-gradient(120deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text; color: transparent; }

.chart { max-width: 960px; margin: 0 auto; }

/* --- layer stack strung on a vertical backbone (the spine), each layer branching to its sub-nodes --- */
.arch { position: relative; display: flex; flex-direction: column; gap: 14px; }
.arch-spine { position: absolute; left: 27px; top: 26px; bottom: 26px; width: 3px; z-index: 0;
  background: linear-gradient(180deg, var(--accent), var(--accent3)); border-radius: 3px;
  transform-origin: top center; }

.layer { position: relative; display: grid; grid-template-columns: 320px 40px minmax(0, 1fr); align-items: start; }
.layer-node { position: relative; z-index: 2; display: flex; flex-direction: column; gap: 8px;
  padding: 12px 16px 14px 12px; border-radius: 14px;
  background: linear-gradient(120deg, rgba(91, 61, 245, 0.14), rgba(224, 72, 127, 0.09)), var(--card-solid);
  border: 1px solid rgba(91, 61, 245, 0.22); box-shadow: 0 12px 30px rgba(60, 40, 120, 0.12); }
.layer-head { display: flex; align-items: center; gap: 11px; }
.layer-idx { width: 30px; height: 30px; border-radius: 9px; flex: none; display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 0.82rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2)); box-shadow: 0 6px 15px rgba(91, 61, 245, 0.30); }
.layer-name { font-weight: 780; font-size: 1.02rem; letter-spacing: -0.01em; color: var(--ink); }
.layer-desc { color: var(--ink-soft); font-size: 0.82rem; line-height: 1.46; }

/* horizontal branch connector: layer node -> its sub-node cluster (aligned to the layer-idx center) */
.branch { position: relative; align-self: stretch; z-index: 1; transform-origin: left center; }
.branch::before { content: ""; position: absolute; top: 27px; left: -8px; right: -2px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(91, 61, 245, 0.32)); }

/* sub-node cluster: a distributor rail feeding the 4 sub-nodes */
.subs { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 7px 0 9px 16px;
  align-content: center; }
.subs .rail { position: absolute; left: 0; top: 10px; bottom: 12px; width: 3px; border-radius: 3px; z-index: 0;
  background: linear-gradient(180deg, rgba(91, 61, 245, 0.5), rgba(55, 182, 214, 0.42)); transform-origin: top center; }
.node.sub { position: relative; z-index: 1; padding: 8px 13px; border-radius: 11px; font-size: 0.8rem; font-weight: 640;
  color: var(--ink-soft); background: var(--card); border: 1px solid var(--line);
  box-shadow: 0 6px 16px rgba(60, 40, 120, 0.07); display: flex; align-items: center; }

/* --- three key flows: connected pipelines / a cycle --- */
.flows { margin-top: 30px; display: flex; flex-direction: column; gap: 22px; }
.flow-title { display: block; margin-bottom: 12px; }
/* nowrap: a pipeline that wraps strands its last node under a connector pointing at nothing.
   Nodes hold their natural width; only a node marked .elastic gives up room (min-width:0 lets it
   wrap its own text). Letting every node shrink instead breaks short labels mid-word. */
.chain { display: flex; flex-wrap: nowrap; align-items: center; gap: 9px; }
.node.fnode { padding: 9px 15px; border-radius: 12px; font-size: 0.82rem; font-weight: 700; color: var(--ink);
  background: var(--card-solid); border: 1px solid var(--line); box-shadow: 0 8px 20px rgba(60, 40, 120, 0.10);
  flex: 0 0 auto; }
.node.fnode.elastic { flex: 0 1 auto; min-width: 0; }
.node.fnode.gate { background: linear-gradient(120deg, rgba(55, 182, 214, 0.16), rgba(91, 61, 245, 0.10)), var(--card-solid);
  border-color: rgba(55, 182, 214, 0.36); }
.node.fnode.approve { background: linear-gradient(120deg, rgba(15, 138, 78, 0.16), rgba(91, 61, 245, 0.08)), var(--card-solid);
  border-color: rgba(15, 138, 78, 0.34); color: var(--ink); }
/* directional connector line + arrowhead between flow nodes */
.link { position: relative; flex: 0 0 30px; height: 3px; border-radius: 3px; align-self: center;
  background: var(--accent); transform-origin: left center; }
.link::after { content: ""; position: absolute; right: -1px; top: 50%; transform: translateY(-50%);
  border-left: 8px solid var(--accent); border-top: 5px solid transparent; border-bottom: 5px solid transparent; }

/* self-improvement CYCLE: a return path from the last node back to the first */
.chain.cycle { position: relative; padding-bottom: 40px; }
.return { position: absolute; left: 14px; right: 40px; bottom: 8px; height: 22px; z-index: 0;
  border: 3px solid rgba(91, 61, 245, 0.4); border-top: none; border-radius: 0 0 14px 14px; }
.return::before { content: ""; position: absolute; left: -6px; top: -10px;
  border-bottom: 10px solid var(--accent); border-left: 6px solid transparent; border-right: 6px solid transparent; }
.return-label { position: absolute; left: 50%; bottom: -10px; transform: translateX(-50%);
  padding: 2px 10px; background: #efe9f8; color: var(--accent); border-radius: 999px; }

/* legend */
.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: center; margin-top: 26px;
  padding-top: 18px; border-top: 1px solid var(--line-soft); }
.legend .lg { display: inline-flex; align-items: center; gap: 8px; font-size: 0.76rem; font-weight: 640; color: var(--ink-faint); }
.lg-swatch { width: 15px; height: 15px; border-radius: 5px; flex: none; }
.lg-swatch.layer-sw { background: linear-gradient(135deg, var(--accent), var(--accent2)); }
.lg-swatch.sub-sw { background: var(--card); border: 1px solid var(--line); }
.lg-swatch.gate-sw { background: linear-gradient(135deg, var(--accent3), var(--accent)); }
.lg-swatch.link-sw { height: 4px; border-radius: 3px; background: var(--accent); }

/* ---- resume ---- */
.resume .card { padding: 30px 32px 32px; }
.resume-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.resume-top .lbl { font-weight: 700; color: var(--ink-soft); font-size: 0.98rem; }
.dl { display: inline-flex; align-items: center; gap: 9px; padding: 12px 22px; border-radius: 12px;
  background: var(--ink); color: #fff; font-weight: 700; font-size: 0.94rem; box-shadow: 0 12px 26px rgba(23, 20, 35, 0.22);
  transition: transform 0.2s ease, opacity 0.2s ease; }
.dl:hover { transform: translateY(-2px); }
.dl[aria-disabled="true"] { background: var(--ink-faint); box-shadow: none; cursor: default; pointer-events: none; }
.resume-frame { width: 100%; height: 620px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.resume-holder { border: 1px dashed rgba(91, 61, 245, 0.4); border-radius: 14px; padding: 54px 30px; text-align: center;
  background: linear-gradient(140deg, rgba(255,255,255,0.6), rgba(240,236,252,0.6)); }
.resume-holder .tag { display: inline-block; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em;
  color: var(--accent); background: rgba(91, 61, 245, 0.1); padding: 6px 12px; border-radius: 999px; margin-bottom: 16px; }
.resume-holder h3 { font-size: 1.4rem; letter-spacing: -0.02em; margin-bottom: 8px; }
.resume-holder p { color: var(--ink-soft); max-width: 46ch; margin: 0 auto; }
.hide { display: none !important; }

/* ---- contact ---- */
.contact { text-align: center; padding: 56px 0 26px; }
.contact h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -0.03em; }
.contact .sub { color: var(--ink-soft); margin: 12px 0 26px; }
.links { display: flex; flex-direction: column; gap: 12px; align-items: center; }
.links .primary { font-size: clamp(1.2rem, 3vw, 1.7rem); font-weight: 800;
  background: linear-gradient(120deg, var(--accent), var(--accent2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.links .row { display: flex; gap: 10px 26px; flex-wrap: wrap; justify-content: center; color: var(--ink-soft); font-weight: 600; }
.links .row a:hover { color: var(--accent); }
.links .row .ph { color: var(--ink-faint); }

footer { padding: 30px 0 46px; border-top: 1px solid var(--line); margin-top: 34px; }
.foot { display: flex; justify-content: space-between; align-items: center; color: var(--ink-faint);
  font-size: 0.88rem; flex-wrap: wrap; gap: 12px; }
.foot a { color: var(--ink-soft); font-weight: 600; margin-left: 18px; }

/* ---- responsive ---- */
@media (max-width: 780px) {
  .grid { grid-template-columns: 1fr; }
  nav { display: none; }
  .pendo .card { padding: 30px 26px; }
  .resume-frame { height: 480px; }
  /* Feature C mobile: kill the Z-depth perspective (heavy 3D induces discomfort + overflow on narrow
     screens). JS also drops to a lite scale/fade here - no translateZ / rotateX / blur. */
  .depth-stage { perspective: none; }

  /* --- chart stacks cleanly on narrow screens: node on top, a short vertical connector, subs below --- */
  .arch { gap: 18px; }
  .arch-spine { display: none; }
  .layer { grid-template-columns: 1fr; gap: 0; }
  .layer-node { min-height: 0; }
  .branch { height: 18px; align-self: center; margin-left: 26px; }
  .branch::before { top: 0; bottom: 0; left: 0; right: auto; width: 3px; height: auto;
    background: linear-gradient(180deg, var(--accent), rgba(91, 61, 245, 0.32)); }
  .subs { grid-template-columns: 1fr; padding: 0 0 0 26px; gap: 8px; }
  .subs .rail { top: 4px; bottom: 4px; }

  /* flows become vertical pipelines with downward arrows */
  .chain { flex-direction: column; align-items: stretch; gap: 8px; }
  .node.fnode { text-align: center; }
  .link { flex: 0 0 20px; width: 3px; height: 20px; align-self: center; }
  .link::after { right: auto; left: 50%; top: auto; bottom: -1px; transform: translateX(-50%);
    border-left: 5px solid transparent; border-right: 5px solid transparent;
    border-top: 8px solid var(--accent); border-bottom: none; }
  .chain.cycle { padding-bottom: 0; }
  .return { position: static; height: auto; border: none; margin: 8px auto 0; display: inline-flex; justify-content: center; }
  .return::before { display: none; }
  .return-label { position: static; transform: none; display: inline-block;
    border: 1px solid rgba(91, 61, 245, 0.4); }
}
/* ============================================================
   Scroll interactions (motherduck-FEEL, Andrew's soft-bloom aesthetic).
   ALL initial-hidden state is gated on html.anim, which JS adds ONLY when
   motion is allowed. No .anim (JS off / reduced-motion) => everything visible.
   Transform + opacity only; GPU-friendly; no strokes, no line art.
   ============================================================ */

/* reveal-on-scroll: fade + rise, index-staggered. One-shot transition, so NO permanent
   will-change (it would pin a compositor layer on every revealed element forever). */
html.anim [data-reveal] {
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition-delay: calc(var(--i, 0) * 90ms);
}
html.anim [data-reveal].is-in { opacity: 1; transform: none; }

/* Pendo number badges: subtle pop as their row reveals */
html.anim .proof-item[data-reveal] .k {
  transform: scale(0.5); opacity: 0;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.12s, opacity 0.3s ease 0.12s;
}
html.anim .proof-item[data-reveal].is-in .k { transform: scale(1); opacity: 1; }

/* parallax field: soft FILLED blooms (no border/stroke) drifting on scroll. GPU layer comes from the
   translate3d JS writes, not a permanent will-change. */
.parallax-layer { position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.parallax-bloom { position: absolute; border-radius: 50%; }

/* thin scroll-progress accent line, palette gradient (compositor layer via translateZ in the transform) */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%; z-index: 100;
  background: linear-gradient(90deg, var(--accent), var(--accent2), var(--accent3));
  transform: scaleX(0); transform-origin: left center;
}

/* ============================================================
   Scroll-SCRUBBED features (MotherDuck-style: state driven by scroll POSITION).
   DEFAULT CSS = the COMPLETED state (system stack assembled + lit, funnel full), so JS-off AND
   reduced-motion render finished, never blank/stuck. JS drives it from 0->1 when
   scrubbing is active. Soft FILLED shapes only, no strokes/line art.
   ============================================================ */

/* -- Feature A: pinned ARCHITECTURE CHART. Tall track + sticky pin ONLY when JS arms .scrub (desktop).
   DEFAULT (no .scrub / JS-off / reduced-motion) = the COMPLETE chart, assembled + drawn. .scrub adds the
   hidden initial state; JS toggles per-element .in classes as the pinned track scrolls, and CSS TRANSITIONS
   do the draw (connectors grow, nodes light) - no per-frame style writes for the chart itself. -- */
.scrub-track { position: relative; }
html.anim .scrub-system.scrub .scrub-track { height: 460vh; }
/* the chart is taller than the viewport, so the pinned frame is a fixed 100vh window and the inner .wrap
   PANS upward as the section scroll-builds. will-change:transform is added by JS only while active. */
html.anim .scrub-system.scrub .scrub-pin {
  position: sticky; top: 0; height: 100vh; overflow: hidden;
  display: flex; align-items: flex-start; justify-content: center; padding-top: 3vh;
}
/* smooth draw/light transitions on the chart primitives */
html.anim .scrub-system.scrub .arch-spine,
html.anim .scrub-system.scrub .branch,
html.anim .scrub-system.scrub .subs .rail,
html.anim .scrub-system.scrub .link {
  transition: transform 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
}
html.anim .scrub-system.scrub .layer-node,
html.anim .scrub-system.scrub .node,
html.anim .scrub-system.scrub .flow-title,
html.anim .scrub-system.scrub .return,
html.anim .scrub-system.scrub .legend {
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
}
/* initial (unassembled) states while scrubbing */
html.anim .scrub-system.scrub .arch-spine { transform: scaleY(0); }
html.anim .scrub-system.scrub .branch { transform: scaleX(0); }
html.anim .scrub-system.scrub .subs .rail { transform: scaleY(0); }
html.anim .scrub-system.scrub .link { transform: scaleX(0); }
html.anim .scrub-system.scrub .layer-node,
html.anim .scrub-system.scrub .node,
html.anim .scrub-system.scrub .flow-title,
html.anim .scrub-system.scrub .return { opacity: 0; transform: translateY(14px) scale(0.97); }
html.anim .scrub-system.scrub .legend { opacity: 0; }
/* assembled states (JS adds .in as each element's threshold is crossed) */
html.anim .scrub-system.scrub .arch-spine.in { transform: scaleY(1); }
html.anim .scrub-system.scrub .branch.in { transform: scaleX(1); }
html.anim .scrub-system.scrub .subs .rail.in { transform: scaleY(1); }
html.anim .scrub-system.scrub .link.in { transform: scaleX(1); }
html.anim .scrub-system.scrub .layer-node.in,
html.anim .scrub-system.scrub .node.in,
html.anim .scrub-system.scrub .flow-title.in,
html.anim .scrub-system.scrub .return.in { opacity: 1; transform: none; }
html.anim .scrub-system.scrub .legend.in { opacity: 1; }

/* -- Feature B: Pendo Add Task -> Done funnel (fills with section scroll) -- */
.funnel { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.fn-head { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.68rem; font-weight: 700; color: var(--ink-faint); margin-bottom: 18px; }
.fn-bars { display: flex; flex-direction: column; gap: 12px; }
.fn-step { display: flex; align-items: center; gap: 14px; }
.fn-cap { flex: none; width: 100px; font-size: 0.86rem; font-weight: 650; color: var(--ink-soft); }
.fn-track { flex: 1 1 auto; }
.fn-bar { position: relative; display: block; height: 24px; border-radius: 999px; background: rgba(91, 61, 245, 0.10); overflow: hidden; }
.fn-bar > i { position: absolute; inset: 0; transform-origin: left center; transform: scaleX(1); border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent2)); }

/* ============================================================
   Feature C: Live products ARRIVE FROM DEPTH. A perspective stage; the two cards start far
   (small, pushed back in Z, tilted back, dim, blurred) and RUSH to full size/facing on scroll
   (accelerating ease-in). DEFAULT (JS-off / reduced-motion) = completed: full size, facing, sharp.
   JS adds .depth3d and drives inline transform/opacity/filter; on arrival it clears inline so :hover works.
   ============================================================ */
.depth-stage { perspective: 1100px; perspective-origin: 50% 42%; }
.depth-grid { transform-style: preserve-3d; }
/* NO permanent will-change; JS adds it only while the products section is active (add on enter, drop on
   leave). Depth "far" softness is a STATIC blur applied via .depth-far, never an animated per-frame filter. */
.depth-card { backface-visibility: hidden; transform-origin: center 60%; }
html.anim .depth-card.depth-far { filter: blur(4px); }

/* ============================================================
   Feature E: 3D CARD DECK (vertical ring / rolodex). DEFAULT = a clean static fallback grid, so
   JS-off / reduced-motion / mobile always read the skills as a simple list (never a broken ring).
   JS adds .deck-on (desktop + motion only) which shows the ring, pins the section, and rotates it.
   One empty slot (slot 0) is the GAP/seam that marks first+last.
   ============================================================ */
.deck-stage { display: none; }
.deck-fallback { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 22px; }
.deck-fallback li { padding: 16px 18px; border-radius: 14px; background: var(--card);
  box-shadow: 0 12px 30px rgba(60, 40, 120, 0.10); font-weight: 650; color: var(--ink-soft); }

html.anim .scrub-deck.deck-on .deck-stage { display: block; position: relative; height: 360px; margin-top: 30px;
  perspective: 1150px; perspective-origin: 50% 50%; }
html.anim .scrub-deck.deck-on .deck-fallback { display: none; }
html.anim .scrub-deck.deck-on .scrub-track { height: 320vh; }
html.anim .scrub-deck.deck-on .scrub-pin { position: sticky; top: 0; min-height: 100vh; display: flex; align-items: center; }

/* NO permanent will-change on the ring/cards; JS adds it to the ring only while the deck is active. */
.deck-ring { position: absolute; inset: 0; transform-style: preserve-3d; }
.deck-card { position: absolute; top: 50%; left: 50%; width: min(420px, 80%); height: 118px;
  margin-left: calc(min(420px, 80%) / -2); margin-top: -59px;
  display: flex; align-items: center; justify-content: center; text-align: center; padding: 0 26px;
  border-radius: 18px; background: var(--card-solid); box-shadow: 0 18px 40px rgba(60, 40, 120, 0.14);
  backface-visibility: hidden; transform-origin: center center; }
.deck-card h3 { font-size: 1.12rem; font-weight: 750; letter-spacing: -0.01em; color: var(--ink); line-height: 1.3; }
.deck-card.is-front { box-shadow: 0 28px 64px rgba(60, 40, 120, 0.24); }

/* ============================================================
   Perf: skip rendering + layout of the heaviest offscreen section (the resume embeds a PDF viewer) while
   it is far from the viewport; contain-intrinsic-size reserves its height so scroll offsets stay stable.
   Applied to a non-measured static section only - the JS-measured sections (products depth stage, the
   pinned chart + deck) are made free-when-offscreen by the IntersectionObserver active-gate instead, which
   avoids any content-visibility measurement/anchor jump on a rect the loop reads. */
.resume { content-visibility: auto; contain-intrinsic-size: auto 760px; }

@media (max-width: 620px) {
  .fn-cap { width: 78px; font-size: 0.78rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  /* belt-and-suspenders: never leave content hidden under reduced-motion - show the COMPLETE chart */
  html.anim [data-reveal], html.anim .proof-item[data-reveal] .k { opacity: 1 !important; transform: none !important; }
  html.anim .scrub-system.scrub .layer-node,
  html.anim .scrub-system.scrub .node,
  html.anim .scrub-system.scrub .flow-title,
  html.anim .scrub-system.scrub .return,
  html.anim .scrub-system.scrub .legend { opacity: 1 !important; transform: none !important; }
  html.anim .scrub-system.scrub .arch-spine,
  html.anim .scrub-system.scrub .branch,
  html.anim .scrub-system.scrub .subs .rail,
  html.anim .scrub-system.scrub .link { transform: none !important; }
  .parallax-layer, .scroll-progress { display: none !important; }
  /* scrubbed features show COMPLETED (defaults already do; no pin) */
  .scrub-system.scrub .scrub-track { height: auto !important; }
  .scrub-system.scrub .scrub-pin { position: static !important; min-height: 0 !important; display: block !important; }
}