/* Shared site foundation — tokens, base, type primitives, buttons.
 * Used by homepage, case shell, and /maturity.
 * Page-specific chrome (nav, hero, work, lab, assessment) stays elsewhere.
 */

:root {
  --serif: "Cabinet Grotesk", system-ui, sans-serif;   /* display face (grotesque) */
  --sans: "Supreme", -apple-system, BlinkMacSystemFont, sans-serif;
  --maxw: 1320px;
  --gut: 40px;
  --section-y: clamp(30px, 4.5vw, 62px);
  /* small-text scale — 4 intentional steps below the display clamps (collapsed from ~10 near-sizes) */
  --fs-prose:17px;   /* reading prose */
  --fs-ui:15px;      /* UI controls + supporting copy */
  --fs-nav:13px;     /* nav links + footnotes */
  --fs-micro:12px;   /* small Supreme labels */
  --fs-tag:10px;     /* lab card tags (Figma) */
  --fs-hero-sub:clamp(17px,2vw,22px);
  --hero-ink:var(--ink);
  --ink-mid:var(--ink-soft);
  --btn-radius:12px;
  --nav-radius:12px;
  --nav-item-radius:8px;
  --btn-on-accent:var(--bg);
  --ease-out: cubic-bezier(.22,1,.36,1);
  --spring: linear(0,0.006,0.025,0.101,0.205,0.404,0.62,0.86,1.04,1.146,1.184,1.169,1.124,1.075,1.038,1.016,1.006,1.001,1);
  --dur:.62s; --dur-fast:.45s;
  --nav-top: max(18px, env(safe-area-inset-top));
  --nav-bottom: max(18px, env(safe-area-inset-bottom));
  /* dark palette is the default; light overrides below */
  color-scheme:dark;
  --bg:#0c0c0d; --bg2:#141416; --ink:#f4f1ea; --ink-soft:#9b968d; --ink-faint:#8a8475;
  --line:rgba(244,241,234,0.14); --line-soft:rgba(244,241,234,0.07);
  --accent:#9ef0b0; --accent-text:#9ef0b0; --nav-bg:rgba(18,18,20,0.6); --nav-border:rgba(244,241,234,0.12);
  --nav-active:rgba(244,241,234,0.08);
  --grid:rgba(244,241,234,0.035);
}
[data-theme="light"]{
  color-scheme:light;
  --bg:#f3f1ea; --bg2:#eae7dd; --ink:#16150f; --ink-soft:#6a655c; --ink-faint:#696254;
  --ink-mid:#42413b;
  --hero-ink:#084929;
  --line:rgba(22,21,15,0.16); --line-soft:rgba(22,21,15,0.07);
  --accent:#1a8f55; --accent-text:#147544; --nav-bg:rgba(243,241,234,0.65); --nav-border:rgba(22,21,15,0.10);
  --nav-active:rgba(106,101,92,0.13);
  --grid:rgba(22,21,15,0.04);
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; overflow-x:clip; }
body {
  font-family:var(--sans); background:var(--bg); color:var(--ink);
  -webkit-font-smoothing:antialiased; overflow-x:clip;
  transition:background .5s ease, color .5s ease;
}
body::before {
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:radial-gradient(ellipse 80% 50% at 85% 8%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 55%),
    radial-gradient(ellipse 60% 40% at 10% 90%, color-mix(in srgb, var(--accent) 4%, transparent), transparent 50%);
  opacity:.9;
}
@media (max-width:860px){
  /* fixed ambient wash reads as sticky on touch scroll — tie it to page height instead */
  body { position:relative; }
  body::before { position:absolute; }
}
::selection { background:var(--accent); color:#0c0c0d; }
:focus-visible { outline:2px solid var(--accent); outline-offset:3px; }
.skip-link { position:absolute; left:12px; top:-60px; z-index:1000; padding:10px 16px; border-radius:10px;
  background:var(--bg); color:var(--ink); border:1px solid var(--accent); font-size:var(--fs-ui); font-weight:600;
  text-decoration:none; transition:top .2s var(--ease-out); }
.skip-link:focus { top:12px; }

.wrap { max-width:var(--maxw); margin:0 auto; padding:0 var(--gut); position:relative; z-index:1; }
@media (max-width:760px){ :root{ --gut:20px; } }

.label { font-family:var(--serif); font-style:normal; font-weight:600; font-size:clamp(21px,1.9vw,32px); letter-spacing:-.01em; color:var(--ink-soft); }
.sec-heading .label { color:var(--accent-text); }
.meta { font-family:var(--sans); font-size:var(--fs-micro); font-weight:500; letter-spacing:.02em; color:var(--ink-faint); }

/* ---------- BUTTONS (Figma: 12px radius, Supreme Bold 15px) ---------- */
.btn {
  display:inline-flex; align-items:center; gap:4px; font-family:var(--sans); font-size:var(--fs-ui); font-weight:700;
  line-height:1; text-decoration:none; border:1px solid transparent; border-radius:var(--btn-radius); cursor:pointer;
  white-space:nowrap; transition:transform .25s cubic-bezier(.2,.7,.2,1), background .2s, border-color .2s, color .2s;
}
.btn:hover { transform:translateY(-3px); }
.btn svg { width:18px; height:18px; flex:none; transition:transform .35s var(--spring); }
.btn:hover svg { transform:translateX(4px); }
.btn-primary { color:var(--btn-on-accent); background:var(--accent); padding:14px 22px 14.5px;
  position:relative; overflow:hidden; box-shadow:0 1px 2px rgba(0,0,0,.16);
  transition:transform .25s cubic-bezier(.2,.7,.2,1), box-shadow .3s var(--ease-out), background .2s, border-color .2s, color .2s; }
/* diagonal sheen sweep on hover (transition lives on :hover so it resets off-screen, no reverse glint) */
.btn-primary::after { content:""; position:absolute; top:0; left:0; width:55%; height:100%; pointer-events:none;
  background:linear-gradient(100deg, transparent, color-mix(in srgb, #fff 52%, transparent), transparent);
  transform:translateX(-200%) skewX(-12deg); }
.btn-primary:hover { box-shadow:0 10px 26px -8px color-mix(in srgb, var(--accent) 60%, transparent), 0 3px 8px rgba(0,0,0,.16); }
.btn-primary:hover::after { transform:translateX(320%) skewX(-12deg); transition:transform .7s var(--ease-out); }
.btn-primary:active { transform:translateY(-1px); }
.btn-ghost { color:var(--ink); background:transparent; border-color:var(--line); padding:15.5px 23px 16px; }
.btn-ghost:hover { background:var(--bg2); }
@media (prefers-reduced-motion:reduce){ .btn, .btn svg { transition:none; } .btn:hover { transform:none; } .btn:hover svg { transform:none; } .btn-primary::after { display:none; } }