* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #f5f5f7; --bg-white: #ffffff; --bg-dark: #1d1d1f;
  --text-primary: #1d1d1f; --text-secondary: #6e6e73;
  --text-on-dark: #f5f5f7; --text-muted-dark: rgba(245,245,247,0.55);
  --accent: #0066cc; --accent-hover: #0077ed;
  --border: rgba(0,0,0,0.08); --tile-radius: 18px;
  --page-width: 980px; --page-pad: 22px;
}
html { scroll-behavior: smooth; }
body { font-family: -apple-system, 'Inter', sans-serif; background: var(--bg); color: var(--text-primary); -webkit-font-smoothing: antialiased; }
.page-wrap { max-width: calc(var(--page-width) + var(--page-pad) * 2); margin: 0 auto; }

nav {
  position: sticky; top: 0; z-index: 100; height: 48px;
  display: flex; align-items: center;
  background: rgba(245,245,247,0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 var(--page-pad);
}
.nav-inner { width: 100%; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-size: 17px; font-weight: 400; color: var(--text-primary); text-decoration: none; letter-spacing: -0.02em; }
.nav-right { display: flex; align-items: center; gap: 18px; }
.nav-back { font-size: 12px; color: var(--accent); text-decoration: none; transition: color 0.2s; }
.nav-back:hover { color: var(--accent-hover); }
.lang-switch { display: flex; align-items: center; font-size: 11px; font-weight: 500; letter-spacing: 0.04em; border: 1px solid var(--border); border-radius: 980px; overflow: hidden; height: 24px; flex-shrink: 0; }
.lang-btn { padding: 0 9px; height: 100%; border: none; background: transparent; color: var(--text-secondary); cursor: pointer; font-family: inherit; font-size: 11px; font-weight: 500; letter-spacing: 0.04em; transition: background 0.18s, color 0.18s; line-height: 1; }
.lang-btn.active { background: var(--accent); color: #fff; }
.lang-btn:not(.active):hover { background: rgba(0,0,0,0.04); color: var(--text-primary); }

.content-wrap { padding: 48px var(--page-pad) 64px; }
.page-header { margin-bottom: 48px; }
.page-eyebrow { font-size: 12px; font-weight: 500; letter-spacing: 0.05em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.page-title { font-size: clamp(32px, 5vw, 54px); font-weight: 600; letter-spacing: -0.025em; line-height: 1.08; color: var(--text-primary); margin-bottom: 12px; }
.page-meta { font-size: 13px; color: var(--text-secondary); }

.doc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.doc-card { background: var(--bg-white); border-radius: var(--tile-radius); padding: 36px 40px; }
.doc-card.full { grid-column: 1 / -1; }
.doc-card.dark { background: var(--bg-dark); }

.section-label { font-size: 11px; font-weight: 600; letter-spacing: 0.07em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.doc-card.dark .section-label { color: rgba(245,245,247,0.4); }

.field-group { margin-bottom: 20px; }
.field-group:last-child { margin-bottom: 0; }
.field-name { font-size: 11px; font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-secondary); margin-bottom: 5px; }
.field-value { font-size: 15px; font-weight: 300; line-height: 1.6; color: var(--text-primary); }
.field-value a { color: var(--accent); text-decoration: none; }
.field-value a:hover { color: var(--accent-hover); }
.doc-card.dark .field-name { color: var(--text-muted-dark); }
.doc-card.dark .field-value { color: var(--text-on-dark); }
.doc-card.dark .field-value a { color: rgba(100,160,255,1); }

.disclaimer-text { font-size: 14px; font-weight: 300; line-height: 1.75; color: var(--text-secondary); }
.disclaimer-text + .disclaimer-text { margin-top: 14px; }
.disclaimer-title { font-size: 15px; font-weight: 500; color: var(--text-primary); margin-bottom: 8px; margin-top: 24px; }
.disclaimer-title:first-child { margin-top: 0; }

footer { background: var(--bg); border-top: 1px solid var(--border); padding: 20px var(--page-pad); max-width: calc(var(--page-width) + var(--page-pad) * 2); margin: 0 auto; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-inner span { font-size: 12px; color: var(--text-secondary); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-secondary); text-decoration: none; font-size: 12px; transition: color 0.2s; }
.footer-links a:hover { color: var(--text-primary); }

@media (max-width: 720px) {
  .doc-grid { grid-template-columns: 1fr; }
  .doc-card.full { grid-column: 1; }
  .doc-card { padding: 28px 24px; }
}