/* ===========================================================================
   PULSE - generative/interactive statement theme for the pulse layout.
   The hero is a live <canvas> flow-field (see the script in layout.tt).
   Brand colours/fonts from theme.json (--theme-*-*), aliased below.
   ========================================================================= */

:root {
  --bg:        var(--theme-colours-bg, #06060B);
  --surface:   var(--theme-colours-surface, #0E0E17);
  --surface-2: var(--theme-colours-surface-2, #15151F);
  --text:      var(--theme-colours-text, #E9E9F2);
  --muted:     var(--theme-colours-text-muted, #9090A8);
  --heading:   var(--theme-colours-heading, #FFFFFF);
  --accent:    var(--theme-colours-accent, #5EEAD4);
  --accent-2:  var(--theme-colours-accent-2, #A78BFA);
  --accent-3:  var(--theme-colours-accent-3, #38BDF8);
  --on-accent: var(--theme-colours-on-accent, #06060B);
  --border:    var(--theme-colours-border, #20202F);
  --font-display: var(--theme-fonts-display, 'Syne', system-ui, sans-serif);
  --font-body:    var(--theme-fonts-body, 'Inter', system-ui, sans-serif);

  --max-w: 1180px;
  --pad: 116px 24px;
  --ease: cubic-bezier(.2,.7,.2,1);
  --t: .25s var(--ease);
  --grad: linear-gradient(100deg, var(--accent), var(--accent-3) 55%, var(--accent-2));
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font-body); line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---- type --------------------------------------------------------------- */
.display { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.03em; line-height: .98; color: var(--heading); font-size: clamp(2.8rem, 8.5vw, 6.5rem); }
.h2 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; line-height: 1.06; color: var(--heading); font-size: clamp(1.9rem, 4.5vw, 3.3rem); }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.32rem); color: var(--muted); line-height: 1.6; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: .74rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--accent); }
.eyebrow::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px var(--accent); animation: blip 2.4s ease-in-out infinite; }
@keyframes blip { 0%,100% { opacity: .4; transform: scale(.7);} 50% { opacity: 1; transform: scale(1);} }

/* ---- primitives --------------------------------------------------------- */
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--pad); position: relative; }
.btn { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 600; font-size: .85rem; padding: 14px 28px; border-radius: 100px; transition: transform var(--t), box-shadow var(--t); border: 1px solid transparent; }
.btn-primary { background: var(--grad); color: var(--on-accent); box-shadow: 0 10px 32px -10px var(--accent); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 44px -10px var(--accent); }
.btn-ghost { border-color: var(--border); color: var(--text); background: rgba(255,255,255,.02); }
.btn-ghost:hover { border-color: var(--accent); transform: translateY(-2px); }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }

/* ---- nav ---------------------------------------------------------------- */
nav.pulse-nav { position: fixed; inset: 0 0 auto 0; z-index: 100; background: rgba(6,6,11,.55); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.pulse-nav .nav-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; height: 70px; display: flex; align-items: center; justify-content: space-between; }
.pulse-logo { display: flex; align-items: center; gap: 11px; font-family: var(--font-display); font-weight: 700; color: var(--heading); letter-spacing: -.01em; }
.pulse-logo .dot { width: 13px; height: 13px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 16px var(--accent); }
.pulse-nav .nav-links { display: flex; gap: 28px; align-items: center; list-style: none; }
.pulse-nav .nav-links a { color: var(--muted); font-size: .9rem; font-weight: 500; transition: color var(--t); }
.pulse-nav .nav-links a:hover { color: var(--text); }
.pulse-nav .nav-cta { background: var(--grad); color: var(--on-accent) !important; padding: 9px 18px; border-radius: 100px; font-weight: 600; font-size: .82rem !important; }

/* ---- hero (canvas flow-field) ------------------------------------------ */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; isolation: isolate; cursor: crosshair; }
#pulse-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; display: block; }
.hero::after { content: ''; position: absolute; inset: 0; z-index: -1; background: radial-gradient(60% 60% at 50% 45%, transparent 30%, var(--bg) 92%); pointer-events: none; }
.hero-inner { max-width: 880px; margin: 0 auto; width: 100%; padding: 120px 24px; text-align: center; }
.hero .display { margin: 22px 0 0; }
.hero .lead { margin: 24px auto 0; max-width: 600px; }
.hero .btn-row { justify-content: center; }
.hint { margin-top: 40px; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); display: inline-flex; align-items: center; gap: 8px; }
.hint::before { content: ''; width: 18px; height: 18px; border: 1px solid var(--accent); border-radius: 50%; }

/* ---- concept cards ------------------------------------------------------ */
.concept .h2 { max-width: 16ch; margin-bottom: 14px; }
.concept .lead { max-width: 600px; margin-bottom: 52px; }
.card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.card { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 32px 28px; transition: transform var(--t), border-color var(--t); overflow: hidden; }
.card::after { content: ''; position: absolute; inset: 0; background: radial-gradient(120% 120% at 0% 0%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 50%); opacity: 0; transition: opacity var(--t); }
.card:hover { transform: translateY(-5px); border-color: var(--accent); }
.card:hover::after { opacity: 1; }
.card .k { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; color: var(--accent); margin-bottom: 16px; }
.card h3 { font-family: var(--font-display); font-size: 1.18rem; color: var(--heading); margin-bottom: 10px; }
.card p { color: var(--muted); font-size: .95rem; line-height: 1.7; position: relative; }

/* ---- CTA ---------------------------------------------------------------- */
.cta { text-align: center; position: relative; overflow: hidden; isolation: isolate; border-top: 1px solid var(--border); }
.cta::before { content: ''; position: absolute; inset: 0; z-index: -1; opacity: .35; filter: blur(50px); background: radial-gradient(40% 60% at 50% 40%, var(--accent), transparent 70%); }
.cta .h2 { max-width: 700px; margin: 0 auto 16px; }
.cta .lead { max-width: 540px; margin: 0 auto; }
.cta .btn-row { justify-content: center; }

/* ---- footer ------------------------------------------------------------- */
footer.pulse-foot { background: var(--bg); border-top: 1px solid var(--border); padding: 60px 24px 34px; }
.pulse-foot .inner { max-width: var(--max-w); margin: 0 auto; display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.pulse-foot .blurb { color: var(--muted); max-width: 320px; margin-top: 13px; font-size: .92rem; line-height: 1.7; }
.pulse-foot h4 { font-family: var(--font-display); color: var(--text); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px; }
.pulse-foot ul { list-style: none; } .pulse-foot li { margin-bottom: 9px; }
.pulse-foot a { color: var(--muted); font-size: .92rem; transition: color var(--t); }
.pulse-foot a:hover { color: var(--accent); }
.pulse-foot .base { max-width: var(--max-w); margin: 46px auto 0; padding-top: 22px; border-top: 1px solid var(--border); color: var(--muted); font-size: .82rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ---- reveal ------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---- responsive --------------------------------------------------------- */
@media (max-width: 900px) {
  .card-grid { grid-template-columns: 1fr; }
  .pulse-foot .inner { grid-template-columns: 1fr; }
  .pulse-nav .nav-links { display: none; }
  :root { --pad: 84px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}