/* ==========================================================================
   3D Landing — shared design system
   ========================================================================== */
:root {
  --bg: #07080c;
  --bg-soft: #0d0f16;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.10);
  --text: #eef0f6;
  --muted: #9aa2b4;
  --muted-dim: #6b7280;

  --accent: #6ea8ff;
  --accent-2: #b98cff;
  --accent-soft: rgba(110, 168, 255, 0.14);

  --maxw: 1180px;
  --radius: 22px;
  --radius-lg: 30px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ambient gradient wash behind the canvas */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(900px 620px at 78% -6%, var(--glow-a, rgba(110,168,255,0.20)), transparent 62%),
    radial-gradient(760px 560px at 6% 104%, var(--glow-b, rgba(185,140,255,0.16)), transparent 60%),
    linear-gradient(180deg, #07080c 0%, #090b12 55%, #07080c 100%);
  z-index: -2;
}
/* subtle grain */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size: 3px 3px;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
}

#scene {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.wrap {
  position: relative;
  z-index: 2;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------------- nav ---------------- */
.nav {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 22px 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 650;
  letter-spacing: -0.015em;
  font-size: 17px;
  text-decoration: none;
  color: var(--text);
}
.brand .mark {
  width: 30px; height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 20px var(--accent-soft);
  display: grid; place-items: center;
  font-size: 14px; font-weight: 800; color: #08090d;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
  padding: 8px 13px;
  border-radius: 999px;
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--surface); }

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease),
              background .22s var(--ease), border-color .22s var(--ease);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(.985); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #07080c;
  box-shadow: 0 10px 30px var(--accent-soft);
}
.btn-primary:hover { box-shadow: 0 16px 42px var(--accent-soft); }
.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { background: var(--surface-strong); }

/* ---------------- hero ---------------- */
.hero {
  min-height: 82vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 0 40px;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  align-self: flex-start;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 7px 15px;
  border-radius: 999px;
  margin-bottom: 26px;
}
.pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--accent-soft); }
  70% { box-shadow: 0 0 0 11px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

h1.hero-title {
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 700;
  margin: 0 0 22px;
  max-width: 15ch;
}
.grad {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 55%, var(--accent) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 7s linear infinite;
}
@keyframes shine { to { background-position: 200% center; } }

.hero-sub {
  font-size: clamp(1.02rem, 2vw, 1.22rem);
  color: var(--muted);
  max-width: 56ch;
  margin: 0 0 34px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 13px; }

/* ---------------- stats ---------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 54px;
}
.stat { background: var(--bg-soft); padding: 26px 24px; }
.stat .num {
  font-size: clamp(1.7rem, 3.4vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}
.stat .lbl { color: var(--muted-dim); font-size: 13px; margin-top: 8px; }

/* ---------------- sections ---------------- */
section.block { padding: 78px 0; }
.eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
h2.section-title {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  letter-spacing: -0.03em;
  font-weight: 680;
  line-height: 1.1;
  margin: 0 0 16px;
  max-width: 20ch;
}
.section-lead { color: var(--muted); max-width: 60ch; margin: 0 0 44px; font-size: 1.05rem; }

/* feature bento */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
  overflow: hidden;
}
.card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.2); background: var(--surface-strong); }
.card .ico {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 18px;
}
.card .ico svg { width: 21px; height: 21px; }
.card h3 {
  font-size: 1.12rem;
  font-weight: 620;
  letter-spacing: -0.015em;
  margin: 0 0 9px;
}
.card p { color: var(--muted); font-size: 0.95rem; margin: 0; }
.card.span-3 { grid-column: span 3; }
.card.span-2 { grid-column: span 2; }
.card.span-4 { grid-column: span 4; }
.card.span-6 { grid-column: span 6; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
}
.step .n {
  font-size: 13px; font-weight: 700; letter-spacing: 0.06em;
  color: var(--accent); margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}
.step .n::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.step h3 { font-size: 1.08rem; margin: 0 0 9px; font-weight: 620; letter-spacing: -0.015em; }
.step p { color: var(--muted); font-size: 0.94rem; margin: 0; }

/* cta band */
.cta-band {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 62px 44px;
  text-align: center;
  background:
    radial-gradient(520px 300px at 50% 0%, var(--accent-soft), transparent 70%),
    var(--bg-soft);
  overflow: hidden;
}
.cta-band h2 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  letter-spacing: -0.03em;
  margin: 0 0 16px;
  font-weight: 680;
}
.cta-band p { color: var(--muted); max-width: 52ch; margin: 0 auto 32px; }
.cta-band .row { display: flex; gap: 13px; justify-content: center; flex-wrap: wrap; }

/* footer */
footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 34px 0;
  color: var(--muted-dim);
  font-size: 13.5px;
}
footer .fwrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--text); }

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

/* hub grid (index) */
.hub-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.hub-card {
  position: relative;
  display: block;
  text-decoration: none;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 28px 34px;
  overflow: hidden;
  transition: transform .35s var(--ease), border-color .35s var(--ease);
  min-height: 330px;
  display: flex;
  flex-direction: column;
}
.hub-card:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.24); }
.hub-card .tag {
  font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--c, var(--accent));
}
.hub-card h3 { font-size: 1.5rem; letter-spacing: -0.025em; margin: 14px 0 10px; font-weight: 660; }
.hub-card p { color: var(--muted); font-size: 0.97rem; margin: 0 0 auto; }
.hub-card .go {
  margin-top: 26px; font-weight: 600; font-size: 14.5px;
  display: inline-flex; align-items: center; gap: 8px; color: var(--c, var(--accent));
}
.hub-card .go svg { transition: transform .3s var(--ease); }
.hub-card:hover .go svg { transform: translateX(5px); }
.hub-card .aura {
  position: absolute; inset: -40% -20% auto auto; width: 260px; height: 260px;
  background: radial-gradient(circle, var(--c, var(--accent)), transparent 68%);
  opacity: 0.16; filter: blur(12px); pointer-events: none;
  transition: opacity .35s var(--ease);
}
.hub-card:hover .aura { opacity: 0.3; }

/* accessibility */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------------- responsive ---------------- */
@media (max-width: 980px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .card.span-3, .card.span-2, .card.span-4, .card.span-6 { grid-column: span 2; }
  .steps { grid-template-columns: 1fr; }
  .hub-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .wrap, .fwrap { padding: 0 18px; }
  .nav { padding: 18px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .bento { grid-template-columns: 1fr; }
  .card.span-3, .card.span-2, .card.span-4, .card.span-6 { grid-column: span 1; }
  .cta-band { padding: 44px 22px; }
  .hero { min-height: 74vh; }
  .stat { padding: 20px 18px; }
  .hub-card { min-height: auto; }
}