:root {
  --bg: #0b0b1f;
  --bg-alt: #10102a;
  --surface: #15153a;
  --line: #26264f;
  --text: #ecebff;
  --muted: #a3a2c9;
  --indigo: #5b4bff;
  --indigo-2: #7c6cff;
  --cyan: #22d3ee;
  --radius: 18px;
  --font: "Inter", system-ui, sans-serif;
  --display: "Space Grotesk", var(--font);
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--display); line-height: 1.1; margin: 0 0 .6em; letter-spacing: -.02em; }
h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h2 em { font-style: normal; color: var(--indigo-2); }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1em; color: var(--muted); }

.wrap { width: min(1160px, 100% - 48px); margin-inline: auto; }
.narrow { width: min(800px, 100% - 48px); }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(11, 11, 31, .72);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav-inner { display: flex; align-items: center; gap: 32px; height: 68px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font: 700 1.35rem var(--display); letter-spacing: -.03em; }
.logo-mark {
  width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(135deg, var(--indigo), var(--cyan));
  box-shadow: 0 0 24px rgba(91,75,255,.6);
}
.nav-links { display: flex; gap: 26px; margin-left: auto; font-size: .93rem; color: var(--muted); }
.nav-links a:hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 24px; border-radius: 999px;
  background: linear-gradient(135deg, var(--indigo), var(--indigo-2));
  color: #fff; font-weight: 600;
  box-shadow: 0 10px 30px -10px rgba(91,75,255,.8);
  transition: transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -10px rgba(91,75,255,.9); }
.btn-small { padding: 9px 18px; font-size: .9rem; }
.btn-lg { padding: 18px 34px; font-size: 1.15rem; font-family: var(--mono); }
.btn-ghost { background: transparent; border: 1px solid var(--line); box-shadow: none; color: var(--text); }
.btn-ghost:hover { border-color: var(--indigo-2); box-shadow: none; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 .8rem var(--mono); text-transform: uppercase; letter-spacing: .14em;
  color: var(--cyan); margin-bottom: 18px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(34,211,238,.18); animation: pulse 2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(34,211,238,0); } }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 110px 0 120px; }
.glow {
  position: absolute; inset: -40% -10% auto auto; width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(91,75,255,.35), transparent 60%);
  filter: blur(40px); pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 70%);
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: center; }
.grad { background: linear-gradient(90deg, var(--indigo-2), var(--cyan)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.15rem; max-width: 560px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 32px 0 44px; }
.hero-stats { display: flex; gap: 40px; list-style: none; padding: 0; margin: 0; }
.hero-stats strong { display: block; font: 700 1.6rem var(--display); }
.hero-stats span { font-size: .85rem; color: var(--muted); }

.terminal {
  background: #0a0a1a; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 40px 80px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(124,108,255,.08);
  overflow: hidden; transform: perspective(1200px) rotateY(-6deg) rotateX(3deg);
}
.term-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--line); background: #0f0f24; }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; background: #3a3a66; }
.term-bar i:first-child { background: #ff5f57; } .term-bar i:nth-child(2) { background: #febc2e; } .term-bar i:nth-child(3) { background: #28c840; }
.term-bar span { margin-left: 10px; font: .78rem var(--mono); color: var(--muted); }
.terminal pre { margin: 0; padding: 22px; font: .86rem/1.7 var(--mono); color: #d6d5ff; overflow-x: auto; }
.terminal .c { color: var(--cyan); } .terminal .s { color: #a5f3a1; } .terminal .p { color: #c4b5fd; } .terminal .k { color: #fff; }
.cursor { animation: blink 1s steps(1) infinite; color: var(--cyan); }
@keyframes blink { 50% { opacity: 0; } }

/* Sections */
.section { padding: 110px 0; }
.alt { background: var(--bg-alt); border-block: 1px solid rgba(255,255,255,.04); }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head p:last-child { font-size: 1.08rem; }

.cards { display: grid; gap: 22px; }
.three { grid-template-columns: repeat(3, 1fr); }
.four { grid-template-columns: repeat(4, 1fr); }
.card {
  background: linear-gradient(180deg, var(--surface), rgba(21,21,58,.4));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 32px;
  transition: border-color .25s, transform .25s;
}
.card:hover { border-color: rgba(124,108,255,.55); transform: translateY(-4px); }
.card > p:not(.more) { color: var(--text); font-weight: 500; }
.card .more { font-size: .95rem; margin: 0; }
.icon {
  width: 56px; height: 56px; display: grid; place-items: center; margin-bottom: 22px;
  border-radius: 14px; color: var(--cyan);
  background: rgba(91,75,255,.14); border: 1px solid rgba(124,108,255,.3);
}
.icon svg { width: 30px; height: 30px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.split + .split { margin-top: 120px; }
.split.reverse > :first-child { order: 0; }
.split-visual { display: grid; place-items: center; }
.orbit { width: 100%; max-width: 440px; }
.orbit circle[stroke-dasharray] { transform-origin: 200px 160px; animation: spin 40s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.checks { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.checks li { position: relative; padding-left: 34px; color: var(--muted); }
.checks li strong { color: var(--text); }
.checks li::before {
  content: "✓"; position: absolute; left: 0; top: 1px;
  width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
  font-size: .75rem; color: var(--bg); background: var(--cyan);
}

.endpoint-list {
  width: 100%; max-width: 420px; display: grid; gap: 12px;
  font: .95rem var(--mono);
}
.endpoint-list div {
  display: flex; align-items: center; gap: 14px; padding: 16px 20px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
}
.endpoint-list div:nth-child(even) { margin-left: 32px; }
.m { font-size: .72rem; font-weight: 500; padding: 3px 8px; border-radius: 6px; }
.get { background: rgba(34,211,238,.15); color: var(--cyan); }
.post { background: rgba(124,108,255,.2); color: #c4b5fd; }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: s; position: relative; }
.timeline::before {
  content: ""; position: absolute; top: 44px; left: 8%; right: 8%; height: 2px;
  background: linear-gradient(90deg, var(--indigo), var(--cyan));
  opacity: .4;
}
.timeline li {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 32px; display: flex; flex-direction: column;
}
.step {
  width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center;
  font: 600 .95rem var(--mono); margin-bottom: 22px;
  background: linear-gradient(135deg, var(--indigo), var(--cyan)); color: #fff;
  box-shadow: 0 0 0 6px var(--bg);
}
.tag { margin-top: auto; align-self: flex-start; font: .75rem var(--mono); padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line); color: var(--cyan); }

/* Criteria */
.metric { padding: 30px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); }
.metric strong { display: block; font: 700 1.9rem var(--display); margin-bottom: 6px; }
.metric span { color: var(--muted); font-size: .92rem; }
.prep { margin-top: 22px; padding: 36px; border-radius: var(--radius); border: 1px dashed rgba(124,108,255,.45); }
.prep-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.prep h4 { font-size: 1rem; color: var(--cyan); font-family: var(--mono); font-weight: 500; text-transform: uppercase; letter-spacing: .1em; }
.prep p { margin: 0; font-size: .95rem; }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 0 24px; transition: border-color .2s; }
.faq details[open] { border-color: rgba(124,108,255,.55); }
.faq summary {
  list-style: none; cursor: pointer; padding: 22px 0;
  font: 600 1.08rem var(--display); display: flex; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 400 1.5rem/1 var(--mono); color: var(--cyan); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding-bottom: 22px; margin: 0; }

/* CTA */
.cta { padding: 130px 0; position: relative; overflow: hidden; text-align: center; }
.cta::before {
  content: ""; position: absolute; left: 50%; top: 50%; width: 900px; height: 500px; translate: -50% -50%;
  background: radial-gradient(ellipse, rgba(91,75,255,.35), transparent 65%); filter: blur(30px);
}
.cta-inner { position: relative; max-width: 720px; }
.cta h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
.cta p { font-size: 1.1rem; margin-bottom: 36px; }
.copy { display: block; margin: 18px auto 0; background: none; border: 0; color: var(--muted); font: .85rem var(--mono); cursor: pointer; }
.copy:hover { color: var(--text); }

.footer { border-top: 1px solid var(--line); padding: 36px 0; }
.footer-inner { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer p { margin: 0; }
.footer .muted { margin-left: auto; font-size: .88rem; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  * { animation: none !important; transition: none !important; }
}
.no-js .reveal { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .nav-inner .btn-small { margin-left: auto; }
  .hero-grid, .split { grid-template-columns: 1fr; gap: 48px; }
  .terminal { transform: none; }
  .three, .timeline, .prep-grid { grid-template-columns: 1fr; }
  .four { grid-template-columns: repeat(2, 1fr); }
  .timeline::before { display: none; }
  .split.reverse > .split-visual { order: 2; }
}
@media (max-width: 560px) {
  .hero { padding: 72px 0 88px; }
  .section { padding: 80px 0; }
  .four { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .footer .muted { margin-left: 0; }
}