:root {
  color-scheme: dark;
  --bg: #040a17;
  --panel: rgba(11, 29, 59, .78);
  --panel-strong: #0b1f42;
  --line: rgba(143, 219, 255, .2);
  --text: #f5fbff;
  --muted: #a8bdd2;
  --cyan: #59e4ff;
  --blue: #347dff;
  --radius: 24px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 80% 5%, rgba(0, 163, 255, .18), transparent 28rem),
    radial-gradient(circle at 10% 28%, rgba(0, 229, 255, .08), transparent 24rem),
    linear-gradient(160deg, #07142b 0%, var(--bg) 48%, #030812 100%);
  line-height: 1.65;
}

a { color: var(--cyan); text-underline-offset: .2em; }
.topbar, main, footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.topbar {
  min-height: 84px;
  display: flex;
  align-items: center;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; font-size: 1.22rem; font-weight: 800; letter-spacing: -.02em; }
.brand img { border-radius: 13px; box-shadow: 0 8px 28px rgba(28, 164, 255, .32); }
.topbar nav { display: flex; gap: 8px; margin-left: auto; }
.topbar nav a, .language summary { color: var(--muted); text-decoration: none; padding: 10px 13px; border-radius: 999px; cursor: pointer; }
.topbar nav a:hover, .topbar nav a[aria-current="page"], .language summary:hover { color: var(--text); background: rgba(255,255,255,.07); }
.language { position: relative; }
.language summary { list-style: none; }
.language summary::-webkit-details-marker { display: none; }
.language-menu { position: absolute; z-index: 5; right: 0; top: 46px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; min-width: 210px; padding: 12px; border: 1px solid var(--line); border-radius: 18px; background: #0b1830; box-shadow: 0 20px 60px rgba(0,0,0,.4); }
.language-menu a { text-align: center; text-decoration: none; color: var(--text); border-radius: 10px; padding: 7px; }
.language-menu a:hover { background: rgba(89, 228, 255, .12); }

.hero { min-height: 650px; display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(280px, .82fr); align-items: center; gap: 44px; padding: 72px 0; }
.eyebrow { margin: 0 0 13px; color: var(--cyan); font-weight: 750; letter-spacing: .09em; text-transform: uppercase; font-size: .78rem; }
h1, h2 { line-height: 1.08; letter-spacing: -.045em; text-wrap: balance; }
h1 { max-width: 820px; margin: 0; font-size: clamp(2.8rem, 7vw, 5.9rem); }
h2 { margin: 0 0 12px; font-size: clamp(1.35rem, 3vw, 2rem); }
.lead { max-width: 760px; color: #c8daea; font-size: clamp(1.08rem, 2vw, 1.32rem); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; min-height: 50px; padding: 0 20px; border: 1px solid var(--line); border-radius: 14px; color: var(--text); text-decoration: none; font-weight: 750; background: rgba(255,255,255,.04); }
.button.primary { border-color: transparent; background: linear-gradient(135deg, var(--blue), #00bcd8); box-shadow: 0 13px 35px rgba(25, 143, 255, .3); }
.button:hover { transform: translateY(-1px); filter: brightness(1.08); }
.platforms { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.platforms span { padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .82rem; }
.hero-art { display: grid; place-items: center; }
.hero-art img { width: min(100%, 410px); height: auto; border-radius: 26%; filter: drop-shadow(0 30px 55px rgba(0, 115, 255, .42)); transform: rotate(2deg); }

.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; padding-bottom: 70px; }
.card, .split article, .notice { border: 1px solid var(--line); background: linear-gradient(145deg, rgba(17, 42, 80, .8), rgba(7, 19, 42, .62)); box-shadow: inset 0 1px rgba(255,255,255,.04); }
.card { min-height: 210px; padding: 28px; border-radius: var(--radius); }
.card p, .split p, .document p, .steps { color: var(--muted); }
.split { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; padding-bottom: 90px; }
.split article { padding: 34px; border-radius: var(--radius); }

.document { width: min(800px, 100%); min-height: calc(100vh - 210px); padding: 82px 0 100px; }
.document h1 { font-size: clamp(2.5rem, 6vw, 4.7rem); }
.document h2 { margin-top: 40px; }
.steps { display: grid; gap: 16px; margin: 38px 0; padding-left: 26px; }
.steps li { padding-left: 8px; }
.steps li::marker { color: var(--cyan); font-weight: 800; }
.notice { margin: 38px 0; padding: 24px 26px; border-radius: 18px; }
.notice h2 { margin-top: 0; }
.legal section { padding: 3px 0 8px; border-bottom: 1px solid var(--line); }

footer { display: flex; justify-content: space-between; gap: 24px; padding: 34px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
footer nav { display: flex; flex-wrap: wrap; gap: 18px; }

@media (max-width: 820px) {
  .topbar { flex-wrap: wrap; gap: 8px 14px; padding: 14px 0; }
  .topbar nav { order: 3; width: 100%; overflow-x: auto; }
  .topbar nav a { white-space: nowrap; }
  .language { margin-left: auto; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding: 60px 0; }
  .hero-art { grid-row: 1; }
  .hero-art img { width: 180px; }
  .grid, .split { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}