:root {
  --bg: #0b0b12;
  --bg-2: #12121c;
  --card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.09);
  --text: #ececf3;
  --muted: #9a9ab0;
  --a1: #7c5cff;
  --a2: #00d4ff;
  --a3: #ff5c8a;
  --grad: linear-gradient(120deg, var(--a1), var(--a2));
  --radius: 18px;
  --max: 1120px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.65 Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3 { font-family: "Space Grotesk", Inter, sans-serif; line-height: 1.15; margin: 0; letter-spacing: -0.02em; }
p { margin: 0 0 1em; }
a { color: inherit; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--a2); margin-bottom: 14px;
}
section { padding: 110px 0; position: relative; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(32px, 4.5vw, 48px); }

/* Header */
header {
  position: fixed; inset: 0 0 auto; z-index: 10;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: rgba(11, 11, 18, 0.65); border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
header.scrolled { border-color: var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font: 700 26px/1 "Space Grotesk", sans-serif; text-decoration: none; letter-spacing: -0.03em; }
.nav ul { display: flex; gap: 34px; list-style: none; margin: 0; padding: 0; }
.nav ul a { text-decoration: none; color: var(--muted); font-size: 15px; font-weight: 500; transition: color .2s; }
.nav ul a:hover { color: var(--text); }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 13px 24px; border-radius: 999px;
  font-weight: 600; font-size: 15px; text-decoration: none; transition: transform .2s, box-shadow .2s, background .2s;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 30px -8px rgba(124, 92, 255, .6); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px -8px rgba(0, 212, 255, .55); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--card); }
.nav .btn { padding: 9px 18px; }

/* Hero */
.hero { min-height: 100vh; display: flex; align-items: center; padding: 140px 0 90px; overflow: hidden; }
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(90px); opacity: .45; z-index: -1;
}
.hero::before { width: 520px; height: 520px; background: var(--a1); top: -120px; left: -140px; animation: drift 14s ease-in-out infinite alternate; }
.hero::after { width: 460px; height: 460px; background: var(--a2); bottom: -160px; right: -120px; opacity: .3; animation: drift 18s ease-in-out infinite alternate-reverse; }
@keyframes drift { to { transform: translate(80px, 60px) scale(1.1); } }
.grid-bg {
  position: absolute; inset: 0; z-index: -1; opacity: .35;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
}
.hero h1 { font-size: clamp(42px, 7.5vw, 88px); max-width: 900px; }
.hero .lead { font-size: clamp(18px, 2vw, 22px); color: var(--muted); margin: 28px 0 40px; max-width: 560px; }
.hero .ctas { display: flex; flex-wrap: wrap; gap: 14px; }

/* Tech */
.tech { padding: 70px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-2); }
.tech h2 { font-size: 15px; font-family: Inter, sans-serif; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); text-align: center; margin-bottom: 34px; }
.tech-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; list-style: none; margin: 0; padding: 0; }
.tech-list li {
  display: flex; align-items: center; gap: 12px; padding: 14px 22px; border-radius: 14px;
  background: var(--card); border: 1px solid var(--border); font: 600 17px "Space Grotesk", sans-serif;
  transition: transform .2s, border-color .2s;
}
.tech-list li:hover { transform: translateY(-3px); border-color: rgba(124, 92, 255, .5); }
.tech-list .dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.tech-list small { display: block; font: 500 12px Inter, sans-serif; color: var(--muted); }

/* About */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: start; }
.about-text p { color: var(--muted); font-size: 18px; }
.about-text p strong { color: var(--text); font-weight: 600; }
.values { display: grid; gap: 16px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px;
  transition: border-color .25s, transform .25s;
}
.card:hover { border-color: rgba(0, 212, 255, .35); transform: translateY(-3px); }
.card .icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(124, 92, 255, .25), rgba(0, 212, 255, .18));
}
.card .icon svg { width: 22px; height: 22px; stroke: var(--a2); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 20px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15.5px; margin: 0; }
.quote {
  margin: 0 0 4px; padding-left: 20px; border-left: 3px solid var(--a1);
  font: 500 20px/1.5 "Space Grotesk", sans-serif; color: var(--text);
}

/* Projects */
.projects { background: var(--bg-2); border-top: 1px solid var(--border); }
.project-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.project { padding: 36px; display: flex; flex-direction: column; position: relative; overflow: hidden; }
.project::before {
  content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: var(--grad);
}
.project .num { font: 700 14px "Space Grotesk", sans-serif; color: var(--a2); margin-bottom: 18px; letter-spacing: .1em; }
.project h3 { font-size: 26px; margin-bottom: 16px; }
.project p { margin-bottom: 14px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 18px; list-style: none; padding-left: 0; }
.tags li { font-size: 13px; font-weight: 500; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); }
.stat { display: flex; align-items: baseline; gap: 10px; margin: 6px 0 18px; }
.stat b { font: 700 40px "Space Grotesk", sans-serif; white-space: nowrap; }
.stat span { color: var(--muted); font-size: 15px; }

/* Contact */
.contact-box {
  border-radius: 28px; padding: 64px; position: relative; overflow: hidden;
  background: radial-gradient(circle at 0% 0%, rgba(124, 92, 255, .35), transparent 55%),
              radial-gradient(circle at 100% 100%, rgba(0, 212, 255, .25), transparent 55%), var(--bg-2);
  border: 1px solid var(--border);
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: center;
}
.contact-box h2 { font-size: clamp(32px, 4.5vw, 50px); margin-bottom: 18px; }
.contact-box p { color: var(--muted); font-size: 18px; }
.address { background: rgba(0, 0, 0, .25); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.address .label { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.address address { font-style: normal; font: 600 22px/1.4 "Space Grotesk", sans-serif; margin-bottom: 22px; }

footer { padding: 40px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }

/* 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) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero::before, .hero::after { animation: none; }
}

@media (max-width: 900px) {
  .about-grid, .contact-box { grid-template-columns: 1fr; gap: 40px; }
  .project-grid { grid-template-columns: 1fr; }
  .contact-box { padding: 40px 28px; }
}
@media (max-width: 720px) {
  .nav ul { display: none; }
  section { padding: 80px 0; }
  .wrap { padding: 0 16px; }
  .project { padding: 28px 22px; }
}

/* Registry data */
.registry {
  margin-top: 20px; padding: 22px 32px; border-radius: var(--radius);
  background: var(--bg-2); border: 1px solid var(--border);
}
.registry dl { display: flex; flex-wrap: wrap; gap: 14px 40px; margin: 0; }
.registry dt { font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.registry dd { margin: 0; font: 600 16px "Space Grotesk", sans-serif; }
.registry .wide { flex: 1 1 280px; }
@media (max-width: 720px) {
  .registry { padding: 20px 22px; }
  .registry dl { gap: 14px 28px; }
}

.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.footer-links [hidden] { display: none; }

/* Document page */
.doc { padding: 150px 0 100px; }
.doc .wrap { max-width: 820px; }
.doc h1 { font-size: clamp(34px, 5vw, 52px); margin-bottom: 18px; }
.doc .meta { color: var(--muted); font-size: 15px; margin-bottom: 40px; }
.doc h2 { font-size: 24px; margin: 44px 0 14px; }
.doc p, .doc li { color: var(--muted); }
.doc p strong, .doc li strong { color: var(--text); }
.doc ol, .doc ul { padding-left: 22px; }
.doc li { margin-bottom: 8px; }
.parties { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 12px 0; }
.parties .card:hover { transform: none; }
.parties .role { font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--a2); margin-bottom: 10px; }
.parties h3 { font-size: 18px; margin-bottom: 10px; }
.parties p { font-size: 14.5px; margin: 0; }
.download {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  margin: 28px 0; padding: 26px 28px; border-radius: var(--radius); border: 1px solid rgba(124, 92, 255, .45);
  background: linear-gradient(135deg, rgba(124, 92, 255, .14), rgba(0, 212, 255, .08));
}
.download b { display: block; font: 600 18px "Space Grotesk", sans-serif; }
.download span { color: var(--muted); font-size: 14px; }
.back { display: flex; width: fit-content; align-items: center; gap: 8px; color: var(--muted); text-decoration: none; font-size: 15px; margin-bottom: 32px; }
.back:hover { color: var(--text); }
mark { background: rgba(255, 92, 138, .18); color: #ffb3c8; padding: 0 4px; border-radius: 4px; }
@media (max-width: 720px) { .parties { grid-template-columns: 1fr; } .doc { padding: 120px 0 70px; } }

.address .email { display: inline-block; font: 600 20px "Space Grotesk", sans-serif; text-decoration: none; margin-bottom: 22px; word-break: break-all; }
.address .email:hover { color: var(--a2); }
.doc a:not(.btn):not(.back) { color: var(--a2); }

/* Language switch */
.nav-actions { display: flex; align-items: center; gap: 14px; }
.lang {
  font-size: 13px; font-weight: 600; letter-spacing: .08em; text-decoration: none; color: var(--muted);
  padding: 7px 11px; border: 1px solid var(--border); border-radius: 999px; transition: color .2s, border-color .2s;
}
.lang:hover { color: var(--text); border-color: rgba(0, 212, 255, .45); }