:root {
  color-scheme: light dark;
  --violet: #625bff;
  --violet-dark: #443bd8;
  --cyan: #16b9e8;
  --mint: #11cfa9;
  --page: #f7f9f8;
  --surface: #ffffff;
  --surface-soft: #f0f4f2;
  --ink: #141a17;
  --muted: #66736c;
  --line: #dde5e1;
  --warning: #fff8dd;
  --warning-line: #e8cf6d;
  --max: 1040px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 50% 0, rgba(98, 91, 255, .09), transparent 28rem),
    var(--page);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Tahoma, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.85;
}
a { color: var(--violet-dark); font-weight: 750; text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { text-decoration-thickness: .14em; }
a:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }
.shell { width: min(var(--max), calc(100% - 32px)); margin-inline: auto; }
.skip-link { position: fixed; inset-block-start: 8px; inset-inline-start: 8px; z-index: 20; transform: translateY(-160%); background: var(--ink); color: var(--surface); padding: 8px 12px; border-radius: 8px; }
.skip-link:focus { transform: translateY(0); }
.site-header { background: rgba(255, 255, 255, .92); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding-block: 14px; }
.brand { display: inline-flex; align-items: baseline; gap: 7px; color: var(--ink); font-size: 32px; font-weight: 950; line-height: 1; text-decoration: none; }
.brand strong { background: linear-gradient(135deg, var(--violet), var(--cyan), var(--mint)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand span { color: var(--muted); font-size: 12px; letter-spacing: .12em; }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 6px 14px; }
.site-nav a { color: var(--ink); font-size: 13px; text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--violet-dark); text-decoration: underline; }
.page { padding-block: 46px 72px; }
.hero { max-width: 850px; margin-block-end: 24px; }
.eyebrow { margin: 0 0 7px; color: var(--violet-dark); font-size: 13px; font-weight: 900; letter-spacing: .04em; }
h1, h2, h3 { line-height: 1.35; }
h1 { margin: 0; font-size: clamp(32px, 5vw, 52px); letter-spacing: -.025em; }
h2 { margin: 30px 0 7px; font-size: 24px; }
h3 { margin: 20px 0 5px; font-size: 18px; }
p { margin: 7px 0 14px; }
.lead { max-width: 760px; color: var(--muted); font-size: 18px; }
.language-jump { display: inline-flex; margin-top: 8px; padding: 6px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); text-decoration: none; }
.card { margin-top: 18px; padding: clamp(22px, 4vw, 38px); border: 1px solid var(--line); border-radius: 24px; background: rgba(255, 255, 255, .95); box-shadow: 0 16px 50px rgba(20, 26, 23, .06); }
.card > :first-child { margin-top: 0; }
.card > :last-child { margin-bottom: 0; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-block: 18px; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.mini-card { padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface-soft); }
.mini-card h2, .mini-card h3 { margin-top: 0; }
.notice { margin-block: 20px; padding: 17px 19px; border: 1px solid var(--warning-line); border-radius: 15px; background: var(--warning); }
.notice strong { display: block; }
.disclosure { border-inline-start: 5px solid var(--violet); }
.muted { color: var(--muted); }
.checklist { padding-inline-start: 22px; }
.checklist li { margin-block: 8px; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin-block: 18px; }
.toc a { padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface-soft); font-size: 13px; text-decoration: none; }
.en { direction: ltr; text-align: left; scroll-margin-top: 18px; }
.en .checklist { padding-left: 22px; padding-right: 0; }
.contact-list { list-style: none; padding: 0; }
.contact-list li { padding-block: 7px; border-bottom: 1px solid var(--line); }
.socials { display: flex; flex-wrap: wrap; gap: 8px; margin-block: 14px; }
.socials a { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface-soft); font-size: 13px; text-decoration: none; }
.site-footer { border-top: 1px solid var(--line); background: var(--surface); }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 22px; padding-block: 24px; color: var(--muted); font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.footer-links a { color: var(--ink); }

@media (max-width: 780px) {
  .header-row { align-items: flex-start; flex-direction: column; gap: 12px; }
  .site-nav { justify-content: flex-start; }
  .grid, .grid.three { grid-template-columns: 1fr; }
  .page { padding-block-start: 32px; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0b0e0d;
    --surface: #121715;
    --surface-soft: #18201c;
    --ink: #f3f7f5;
    --muted: #aab5af;
    --line: #2b3530;
    --warning: #2d2918;
    --warning-line: #77682d;
    --violet-dark: #aaa6ff;
  }
  .site-header { background: rgba(18, 23, 21, .92); }
  .card { background: rgba(18, 23, 21, .96); box-shadow: none; }
}

@media print {
  .site-header, .language-jump, .site-footer { display: none; }
  body { background: #fff; color: #000; }
  .card { box-shadow: none; break-inside: avoid; }
}