:root {
  --bg: #07090d;
  --bg-alt: #0b0f16;
  --surface: #10151f;
  --surface-hi: #161c28;
  --border: rgba(255,255,255,0.08);
  --border-hi: rgba(255,255,255,0.14);
  --text: #e8ecf3;
  --text-dim: #9aa3b2;
  --text-mute: #6b7383;
  --accent: #7cf9d4;
  --accent-2: #5aa9ff;
  --accent-3: #c6a8ff;
  --danger: #ff7a7a;
  --grad-1: linear-gradient(120deg, #7cf9d4 0%, #5aa9ff 45%, #c6a8ff 100%);
  --grad-soft: linear-gradient(180deg, rgba(124,249,212,0.08), rgba(90,169,255,0.04));
  --radius: 14px;
  --radius-lg: 20px;
  --maxw: 1200px;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
h1, h2, h3, h4, h5 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }
p { color: var(--text-dim); }

/* BACKGROUND AMBIENT */
.bg-grid {
  position: fixed; inset: 0; z-index: -2;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 0%, transparent 70%);
  pointer-events: none;
}
.bg-glow {
  position: fixed; inset: -20% -10% auto -10%; height: 80vh; z-index: -1;
  background:
    radial-gradient(circle at 20% 30%, rgba(124,249,212,0.18), transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(90,169,255,0.18), transparent 55%),
    radial-gradient(circle at 50% 80%, rgba(198,168,255,0.12), transparent 55%);
  filter: blur(40px);
  pointer-events: none;
}

/* CONTAINER */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: rgba(7,9,13,0.65);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, background .2s ease;
}
.nav.scrolled { border-bottom-color: var(--border); background: rgba(7,9,13,0.85); }
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: baseline; gap: 8px; }
.brand-mark {
  font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em;
  background: var(--grad-1); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand-sub { color: var(--text-mute); font-size: 0.8rem; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--text-dim); font-size: 0.92rem; font-weight: 500; transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.lang-toggle {
  font-size: 0.82rem; color: var(--text-dim); padding: 6px 10px;
  border: 1px solid var(--border); border-radius: 8px; transition: all .15s;
}
.lang-toggle:hover { color: var(--text); border-color: var(--border-hi); }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: 10px; font-weight: 600; font-size: 0.92rem;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad-1); color: #07090d;
  box-shadow: 0 8px 30px rgba(124,249,212,0.2);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 40px rgba(124,249,212,0.3); }
.btn-ghost {
  background: rgba(255,255,255,0.04); color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: rgba(255,255,255,0.08); border-color: var(--border-hi); }

/* HERO */
.hero { padding: 80px 0 100px; position: relative; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px; border: 1px solid var(--border); border-radius: 99px;
  background: rgba(255,255,255,0.02); font-size: 0.82rem; color: var(--text-dim);
  margin-bottom: 28px;
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 12px var(--accent); animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.05;
  margin-bottom: 24px; max-width: 960px;
}
.grad {
  background: var(--grad-1);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.15rem); color: var(--text-dim);
  max-width: 720px; margin-bottom: 36px;
}
.hero-cta { display: flex; gap: 12px; margin-bottom: 72px; flex-wrap: wrap; }

.hero-cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color .2s, transform .2s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute; inset: 0;
  background: var(--grad-soft); opacity: 0; transition: opacity .25s;
  pointer-events: none;
}
.card:hover { transform: translateY(-2px); border-color: var(--border-hi); }
.card:hover::before { opacity: 1; }
.card-icon {
  font-size: 1.5rem; color: var(--accent);
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(124,249,212,0.08); border: 1px solid rgba(124,249,212,0.2);
  display: grid; place-items: center; margin-bottom: 18px;
}
.card h3 { margin-bottom: 8px; }
.card p { font-size: 0.93rem; }

/* SECTIONS */
.section { padding: 110px 0; position: relative; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 780px; margin-bottom: 56px; }
.tag {
  display: inline-block; font-family: var(--mono); font-size: 0.78rem;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent);
  padding: 4px 10px; background: rgba(124,249,212,0.08);
  border: 1px solid rgba(124,249,212,0.18); border-radius: 6px;
  margin-bottom: 18px;
}
.section-sub { font-size: 1.05rem; margin-top: 18px; max-width: 720px; }

/* TIMELINE */
.timeline {
  display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 16px;
  align-items: stretch;
}
.tl-step {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px;
  transition: border-color .2s;
}
.tl-step:hover { border-color: var(--border-hi); }
.tl-step.tl-now {
  background: linear-gradient(180deg, rgba(124,249,212,0.08), rgba(90,169,255,0.04));
  border-color: rgba(124,249,212,0.3);
}
.tl-era {
  font-family: var(--mono); font-size: 0.78rem; color: var(--text-mute);
  letter-spacing: 0.08em; margin-bottom: 10px;
}
.tl-step h4 { margin-bottom: 8px; font-size: 1.15rem; }
.tl-step p { font-size: 0.92rem; }
.tl-arrow {
  align-self: center; color: var(--text-mute); font-size: 1.4rem; font-weight: 300;
}

/* STACK / TRUST LAYER */
.stack-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.stack-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px 28px; position: relative;
  transition: transform .2s, border-color .2s;
}
.stack-card:hover { transform: translateY(-3px); border-color: var(--border-hi); }
.stack-card.featured {
  background: linear-gradient(180deg, rgba(124,249,212,0.07), rgba(90,169,255,0.03));
  border-color: rgba(124,249,212,0.25);
}
.stack-num {
  font-family: var(--mono); font-size: 0.85rem; color: var(--text-mute);
  letter-spacing: 0.1em; margin-bottom: 16px;
}
.stack-card h3 { font-size: 1.4rem; margin-bottom: 14px; }
.stack-card > p { margin-bottom: 22px; font-size: 0.95rem; }
.stack-features {
  list-style: none; display: flex; flex-direction: column; gap: 8px;
  padding-top: 18px; border-top: 1px solid var(--border);
}
.stack-features li {
  font-size: 0.88rem; color: var(--text-dim); padding-left: 18px; position: relative;
}
.stack-features li::before {
  content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700;
}
.badge {
  position: absolute; top: 24px; right: 24px;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em;
  padding: 3px 8px; border-radius: 4px;
  background: var(--accent); color: #07090d; font-weight: 700;
}

/* TECH GRID */
.tech-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-bottom: 56px;
}
.tech-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 24px;
  transition: transform .2s, border-color .2s;
}
.tech-card:hover { transform: translateY(-2px); border-color: var(--border-hi); }
.tech-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: rgba(90,169,255,0.08); border: 1px solid rgba(90,169,255,0.2);
  color: var(--accent-2);
  display: grid; place-items: center; font-weight: 600; font-family: var(--mono);
  font-size: 0.95rem; margin-bottom: 16px;
}
.tech-card h4 { margin-bottom: 6px; }
.tech-card p { font-size: 0.9rem; }

.philosophy {
  background: var(--surface-hi); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px;
  display: flex; flex-direction: column; gap: 14px;
}
.philosophy h3 { font-size: 1.4rem; }
.philosophy p { max-width: 720px; }
.chips { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.chip {
  padding: 6px 14px; border-radius: 99px; font-size: 0.82rem;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  color: var(--text-dim);
}

/* USE CASES */
.uc-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-bottom: 56px;
}
.uc-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 24px;
  transition: transform .2s, border-color .2s;
}
.uc-card:hover { transform: translateY(-2px); border-color: var(--border-hi); }
.uc-new {
  background: linear-gradient(180deg, rgba(198,168,255,0.08), rgba(124,249,212,0.03));
  border-color: rgba(198,168,255,0.25);
}
.uc-kicker {
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.1em;
  color: var(--text-mute); text-transform: uppercase; margin-bottom: 12px;
}
.uc-kicker-hot { color: var(--accent-3); }
.uc-card h4 { margin-bottom: 8px; font-size: 1.1rem; }
.uc-card p { font-size: 0.9rem; }

.vision {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: center;
  background: var(--surface-hi); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px;
}
.vision-text h3 { font-size: 1.6rem; margin-bottom: 12px; }
.vision-stats { display: flex; flex-direction: column; gap: 20px; }
.vision-stats > div {
  display: flex; flex-direction: column; gap: 2px;
  padding-left: 20px; border-left: 2px solid var(--accent);
}
.vision-stats strong {
  font-size: 1.8rem; font-weight: 700;
  background: var(--grad-1); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.vision-stats span { font-size: 0.88rem; color: var(--text-dim); }

/* BUILDERS */
.builders-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-bottom: 40px;
}
.builder-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 24px;
}
.builder-label {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.1em;
  color: var(--text-mute); text-transform: uppercase; margin-bottom: 16px;
}
.builder-logos {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px;
}
.builder-logos span {
  font-family: var(--mono); font-size: 0.82rem;
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px;
  background: rgba(255,255,255,0.02); color: var(--text);
}
.builder-card p { font-size: 0.9rem; }

.code-block {
  background: #05070b; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  font-family: var(--mono); font-size: 0.88rem; line-height: 1.7;
  color: var(--text); overflow-x: auto;
}
.c-muted { color: var(--text-mute); font-style: italic; }
.c-kw { color: var(--accent-2); }
.c-str { color: var(--accent); }
.c-num { color: var(--accent-3); }

/* PARTNERS */
.partners-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px;
  margin-bottom: 72px;
}
.partner {
  padding: 22px 16px; text-align: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
  font-weight: 600; color: var(--text-dim); font-size: 1rem;
  letter-spacing: -0.01em;
  transition: color .2s, border-color .2s, transform .2s;
}
.partner:hover { color: var(--text); border-color: var(--border-hi); transform: translateY(-2px); }

.ecosystem h3 { font-size: 1.5rem; margin-bottom: 8px; }
.ecosystem > p { margin-bottom: 24px; }
.eco-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.eco-card {
  display: flex; flex-direction: column; gap: 6px;
  padding: 22px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); transition: all .2s;
}
.eco-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.eco-card strong { font-size: 1.05rem; color: var(--text); }
.eco-card span { font-size: 0.88rem; color: var(--text-dim); }

/* CTA STRIP */
.cta-strip {
  padding: 90px 0; text-align: center;
  background:
    radial-gradient(ellipse at top, rgba(124,249,212,0.1), transparent 60%),
    radial-gradient(ellipse at bottom, rgba(90,169,255,0.08), transparent 60%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-strip h2 { max-width: 760px; margin: 0 auto 14px; }
.cta-strip p { max-width: 600px; margin: 0 auto 32px; }
.cta-actions { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

/* FOOTER */
.footer { padding: 60px 0 32px; background: var(--bg-alt); border-top: 1px solid var(--border); }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid var(--border);
}
.footer-about { font-size: 0.9rem; max-width: 340px; margin-top: 14px; }
.footer h5 {
  font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-mute); margin-bottom: 14px; font-weight: 600;
}
.footer a { display: block; font-size: 0.9rem; color: var(--text-dim); padding: 4px 0; transition: color .15s; }
.footer a:hover { color: var(--text); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; font-size: 0.85rem; color: var(--text-mute);
}
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { color: var(--text-mute); font-size: 0.85rem; }
.footer-legal a:hover { color: var(--text); }

/* FADE-IN ANIMATION */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .hero-cards, .stack-grid, .tech-grid, .uc-grid, .builders-grid, .eco-cards {
    grid-template-columns: 1fr;
  }
  .timeline { grid-template-columns: 1fr; }
  .tl-arrow { transform: rotate(90deg); justify-self: center; }
  .vision { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 14px; text-align: center; }
  .section { padding: 80px 0; }
  .hero { padding: 60px 0 80px; }
}
@media (max-width: 540px) {
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-actions .btn { display: none; }
  .hero-title { font-size: 2.2rem; }
}