:root {
  --navy: #0a1730;
  --navy-soft: #12264a;
  --blue: #217bf4;
  --blue-dark: #1764cc;
  --blue-pale: #edf5ff;
  --green: #1fba6c;
  --ink: #14213a;
  --muted: #5e6b80;
  --line: #dce6f3;
  --surface: #ffffff;
  --page: #f6f9fd;
  --shadow: 0 16px 40px rgba(19, 51, 94, .10);
  --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--page); color: var(--ink); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.55; }
a { color: var(--blue-dark); }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(33,123,244,.45); outline-offset: 3px; }
.skip-link { position: absolute; left: 1rem; top: -4rem; z-index: 100; background: var(--navy); color: #fff; padding: .65rem 1rem; border-radius: 0 0 10px 10px; }
.skip-link:focus { top: 0; }
.container { width: min(1120px, calc(100% - 2.5rem)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(246,249,253,.92); border-bottom: 1px solid rgba(220,230,243,.8); backdrop-filter: blur(14px); }
.header-content { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; color: var(--navy); font-weight: 800; font-size: 1.22rem; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; color: #fff; font-size: 1.35rem; font-weight: 850; background: linear-gradient(145deg, #2f8cff, #1764cc); box-shadow: 0 8px 18px rgba(33,123,244,.24); }
.site-nav { display: flex; align-items: center; gap: .15rem; }
.site-nav a { padding: .6rem .75rem; color: #41506a; text-decoration: none; font-size: .93rem; font-weight: 650; border-radius: 10px; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--blue-dark); background: var(--blue-pale); }
.menu-toggle { display: none; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--navy); padding: .45rem .6rem; font: inherit; }
.hero { padding: 5.5rem 0 4rem; background: radial-gradient(circle at 82% 2%, #d9ebff 0, rgba(217,235,255,0) 33%), linear-gradient(160deg, #f8fbff, #eff6ff); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.35fr .85fr; gap: 3rem; align-items: center; }
.eyebrow { margin: 0 0 .85rem; color: var(--blue-dark); font-weight: 800; font-size: .92rem; letter-spacing: .04em; text-transform: uppercase; }
h1, h2, h3 { color: var(--navy); line-height: 1.15; }
h1 { margin: 0; font-size: clamp(2.25rem, 5vw, 4.3rem); letter-spacing: -.04em; }
h2 { margin: 0 0 1rem; font-size: clamp(1.55rem, 2.5vw, 2.2rem); }
h3 { margin: 1.55rem 0 .55rem; font-size: 1.08rem; }
.lead { max-width: 650px; margin: 1.2rem 0 1.8rem; color: #43516a; font-size: clamp(1.06rem, 2vw, 1.22rem); }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: .7rem 1.05rem; border: 1px solid transparent; border-radius: 12px; background: var(--blue); color: #fff; font-weight: 760; text-decoration: none; box-shadow: 0 10px 20px rgba(33,123,244,.2); }
.button:hover { background: var(--blue-dark); color: #fff; }
.button.secondary { border-color: #bdd8fc; background: #fff; color: var(--blue-dark); box-shadow: none; }
.hero-card, .card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.hero-card { padding: 1.55rem; }
.hero-card .mini-row { display: flex; gap: .85rem; align-items: flex-start; padding: .95rem 0; border-bottom: 1px solid var(--line); }
.hero-card .mini-row:last-child { border: 0; }
.icon { width: 39px; height: 39px; flex: 0 0 39px; display: grid; place-items: center; border-radius: 12px; background: var(--blue-pale); color: var(--blue-dark); font-size: 1.18rem; }
.mini-row strong { display:block; color:var(--navy); }
.mini-row span { color: var(--muted); font-size: .92rem; }
.section { padding: 4.25rem 0; }
.section-muted { background: #eef5fd; border-block: 1px solid var(--line); }
.section-intro { max-width: 690px; color: var(--muted); margin: -.3rem 0 1.8rem; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card { padding: 1.35rem; }
.card p { margin-bottom: 0; color: var(--muted); }
.card a { display: inline-block; margin-top: .75rem; font-weight: 750; text-decoration: none; }
.document { padding: 3.5rem 0 5rem; }
.document-header { max-width: 800px; margin-bottom: 2.2rem; }
.document-header h1 { font-size: clamp(2.1rem, 4.2vw, 3.5rem); }
.document-meta { margin-top: .75rem; color: var(--muted); font-size: .94rem; }
.document-layout { display: grid; grid-template-columns: minmax(0, 1fr) 255px; gap: 2.25rem; align-items: start; }
.article { padding: clamp(1.3rem, 3vw, 2.35rem); }
.article p, .article li { color: #3f4d63; }
.article ul { padding-left: 1.25rem; }
.article li + li { margin-top: .4rem; }
.note { padding: 1rem 1.1rem; margin: 1.3rem 0; border-left: 4px solid var(--blue); border-radius: 0 13px 13px 0; background: var(--blue-pale); color: #304c73; }
.warning { border-left-color: #d99513; background: #fff8e7; color: #6a4c0b; }
.toc { padding: 1.25rem; position: sticky; top: 96px; }
.toc strong { display: block; margin-bottom: .6rem; }
.toc a { display: block; padding: .35rem 0; color: var(--muted); text-decoration: none; font-size: .92rem; }
.toc a:hover { color: var(--blue-dark); }
.faq { border-top: 1px solid var(--line); }
.faq details { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; color: var(--navy); font-weight: 750; }
.faq p { margin: .7rem 0 0; color: var(--muted); }
.contact-panel { padding: 1.35rem; border: 1px solid #bcd9ff; border-radius: var(--radius); background: linear-gradient(135deg, #edf6ff, #fff); }
.contact-panel p { color: #43516a; }
.site-footer { padding: 2.4rem 0; background: var(--navy); color: #c9d5e7; }
.footer-content { display: flex; justify-content: space-between; align-items: start; gap: 1.5rem; }
.footer-content strong { color: #fff; }
.footer-content p { margin: .3rem 0 0; font-size: .9rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .8rem; }
.footer-links a { color: #d6e6ff; text-decoration: none; font-size: .9rem; }
@media (max-width: 820px) {
  .hero { padding: 3.5rem 0; }
  .hero-grid, .document-layout { grid-template-columns: 1fr; gap: 1.7rem; }
  .toc { display: none; }
  .grid { grid-template-columns: 1fr 1fr; }
  .menu-toggle { display: inline-flex; }
  .site-nav { display: none; position: absolute; top: 76px; left: 0; right: 0; padding: .75rem max(1.25rem, calc((100% - 1120px)/2)); flex-direction: column; align-items: stretch; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 12px 22px rgba(19,51,94,.08); }
  .site-nav.is-open { display:flex; }
  .site-nav a { padding: .75rem; }
}
@media (max-width: 520px) {
  .container { width: min(100% - 1.5rem, 1120px); }
  .header-content { min-height: 67px; }
  .site-nav { top: 67px; }
  .grid { grid-template-columns: 1fr; }
  .footer-content { flex-direction: column; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
}