:root {
  --ink: #12142b;
  --ink-2: #4a4f6a;
  --bg: #f6f7fb;
  --card: #ffffff;
  --line: #e3e6f0;
  --brand: #5b3df5;
  --brand-2: #00b8a9;
  --dark: #0d0f24;
  --radius: 18px;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #eceefc; --ink-2: #a9aecb; --bg: #0d0f24; --card: #161938; --line: #262a52; --dark: #070816; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: var(--brand); }
.wrap { width: min(1080px, 100% - 40px); margin-inline: auto; }

/* header */
header.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.logo { white-space: nowrap; display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.02em; font-size: 1.15rem; color: var(--ink); text-decoration: none; }
.logo svg { width: 34px; height: 34px; }
nav { display: flex; align-items: center; gap: 22px; }
nav a { white-space: nowrap; color: var(--ink-2); text-decoration: none; font-weight: 600; font-size: 0.95rem; }
nav a:hover { color: var(--brand); }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang button { border: 0; background: transparent; color: var(--ink-2); font-weight: 700; padding: 7px 12px; cursor: pointer; font-size: 0.85rem; }
.lang button[aria-pressed='true'] { background: var(--brand); color: #fff; }
@media (max-width: 760px) { nav a.hide-sm { display: none; } nav { gap: 12px; } .logo { font-size: 1rem; } .logo svg { width: 28px; height: 28px; } .hero { padding: 64px 0 72px; } .btn.ghost { margin: 10px 0 0; } }

/* hero */
.hero { background: radial-gradient(1200px 500px at 85% -10%, #7b5cff55, transparent 60%), radial-gradient(900px 400px at 0% 110%, #00b8a944, transparent 60%), var(--dark); color: #fff; padding: 88px 0 96px; }
.hero h1 { font-size: clamp(2.1rem, 5.5vw, 3.6rem); line-height: 1.08; letter-spacing: -0.03em; margin: 0 0 18px; max-width: 16ch; }
.hero h1 span { background: linear-gradient(90deg, #a897ff, #3fe0d0); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { font-size: 1.15rem; color: #cfd2ee; max-width: 56ch; margin: 0 0 30px; }
.btn { display: inline-block; background: var(--brand); color: #fff; padding: 13px 24px; border-radius: 12px; font-weight: 700; text-decoration: none; }
.btn.ghost { background: transparent; border: 1px solid #ffffff55; margin-left: 10px; }
.btn:hover { filter: brightness(1.1); }

/* sections */
section { padding: 72px 0; }
section h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); letter-spacing: -0.02em; margin: 0 0 8px; }
.lead { color: var(--ink-2); max-width: 62ch; margin: 0 0 34px; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin: 12px 0 6px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--ink-2); font-size: 0.97rem; }
.ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, #5b3df522, #00b8a933); font-size: 22px; }
.steps { counter-reset: s; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.step { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 22px 22px; }
.step::before { counter-increment: s; content: counter(s); position: absolute; top: -14px; left: 20px; width: 30px; height: 30px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 800; display: grid; place-items: center; }
.step h3 { margin: 6px 0 4px; font-size: 1.05rem; }
.step p { margin: 0; color: var(--ink-2); font-size: 0.95rem; }
.alt { background: color-mix(in srgb, var(--card) 60%, var(--bg)); border-block: 1px solid var(--line); }
.tag { display: inline-block; font-size: 0.75rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; background: #00b8a922; color: #008c80; margin-bottom: 4px; }
@media (prefers-color-scheme: dark) { .tag { color: #3fe0d0; } }

.contact { text-align: center; }
.contact .box { background: linear-gradient(135deg, #5b3df5, #3a22b5); color: #fff; border-radius: 26px; padding: 48px 24px; }
.contact h2 { margin-bottom: 10px; }
.contact p { color: #e4defe; margin: 0 auto 22px; max-width: 50ch; }
.contact a.mail { display: inline-block; background: #fff; color: #3a22b5; font-weight: 800; padding: 14px 26px; border-radius: 12px; text-decoration: none; word-break: break-all; }

footer { padding: 34px 0 44px; color: var(--ink-2); font-size: 0.92rem; border-top: 1px solid var(--line); }
footer .row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
footer a { color: var(--ink-2); }

/* legal page */
.doc { padding: 48px 0 70px; }
.doc h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); letter-spacing: -0.02em; margin: 0 0 6px; }
.doc h2 { font-size: 1.3rem; margin: 34px 0 8px; }
.doc p, .doc li { color: var(--ink-2); max-width: 74ch; }
.doc ul { padding-left: 20px; }
.doc .meta { color: var(--ink-2); margin-bottom: 26px; }
.note { border-left: 4px solid var(--brand-2); background: var(--card); padding: 14px 18px; border-radius: 0 12px 12px 0; margin: 18px 0; max-width: 74ch; }