:root {
  --bg-canvas: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-subtle: #F1F5F9;
  --border-subtle: #E2E8F0;
  --border-medium: #CBD5E1;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-inverse: #FFFFFF;
  --brand-primary: #1E40AF;
  --brand-primary-hover: #1D4ED8;
  --brand-surface: #EFF6FF;
  --font-stack: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-family: var(--font-stack); background: var(--bg-canvas); color: var(--text-primary); -webkit-font-smoothing: antialiased; line-height: 1.5; }
body { overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.navbar { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-subtle); }
.navbar-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo-container { display: inline-flex; align-items: center; gap: 10px; }
.brand-icon { display: block; width: 34px; height: 34px; object-fit: contain; flex-shrink: 0; }
.brand-icon-sm { width: 28px; height: 28px; }
.logo-text { color: var(--text-primary); font-size: 1.35rem; font-weight: 700; letter-spacing: -0.03em; }
.logo-text span { color: var(--brand-primary); }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-link { color: var(--text-secondary); font-size: 0.95rem; font-weight: 500; transition: color 0.15s ease; }
.nav-link:hover, .nav-link[aria-current="page"] { color: var(--brand-primary); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.menu-toggle { display: none; padding: 8px; background: none; border: 0; cursor: pointer; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 22px; border: 1px solid transparent; border-radius: var(--radius-sm); cursor: pointer; font-size: 0.95rem; font-weight: 600; white-space: nowrap; transition: background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease; }
.btn-primary { color: var(--text-inverse); background: var(--brand-primary); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--brand-primary-hover); box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-sm { padding: 6px 14px; font-size: 0.875rem; }

.legal-hero { padding: 64px 0 52px; text-align: center; background: linear-gradient(180deg, #FFFFFF 0%, var(--bg-canvas) 100%); border-bottom: 1px solid var(--border-subtle); }
.eyebrow { display: inline-block; margin-bottom: 12px; color: var(--brand-primary); font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.legal-hero h1 { margin-bottom: 16px; color: var(--text-primary); font-size: 3rem; line-height: 1.15; letter-spacing: -0.03em; }
.legal-hero p { max-width: 680px; margin: 0 auto; color: var(--text-secondary); font-size: 1.12rem; line-height: 1.65; }
.policy-switcher { display: flex; justify-content: center; gap: 12px; margin-top: 28px; }
.policy-link { padding: 9px 18px; color: var(--text-secondary); background: var(--bg-surface); border: 1px solid var(--border-medium); border-radius: var(--radius-sm); font-size: 0.92rem; font-weight: 600; }
.policy-link:hover, .policy-link[aria-current="page"] { color: var(--text-inverse); background: var(--brand-primary); border-color: var(--brand-primary); }

.legal-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; align-items: start; padding-top: 56px; padding-bottom: 96px; }
.contents-nav { position: sticky; top: 96px; padding: 20px; background: var(--bg-surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.contents-nav h2 { margin-bottom: 13px; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; }
.contents-nav ol { display: flex; flex-direction: column; gap: 3px; padding-left: 0; list-style: none; }
.contents-nav a { display: block; padding: 7px 9px; color: var(--text-secondary); border-radius: var(--radius-sm); font-size: 0.86rem; line-height: 1.3; }
.contents-nav a:hover { color: var(--brand-primary); background: var(--brand-surface); }

.legal-document { min-width: 0; padding: 48px; background: var(--bg-surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.document-header { margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--border-subtle); }
.document-header h2 { margin-bottom: 10px; color: var(--text-primary); font-size: 2rem; letter-spacing: -0.02em; }
.effective-date { color: var(--text-muted); font-size: 0.95rem; }
.policy-section { scroll-margin-top: 100px; }
.policy-section + .policy-section { margin-top: 32px; }
.policy-section h3 { margin-bottom: 10px; color: var(--text-primary); font-size: 1.22rem; line-height: 1.35; letter-spacing: -0.01em; }
.policy-section p, .policy-section ul { margin-bottom: 14px; color: var(--text-secondary); font-size: 1rem; line-height: 1.72; }
.policy-section p:last-child, .policy-section ul:last-child { margin-bottom: 0; }
.policy-section ul { padding-left: 24px; }
.policy-section li { margin-bottom: 6px; }
.policy-section a { color: var(--brand-primary); font-weight: 600; }
.policy-section a:hover { text-decoration: underline; }
.contact-card { margin-top: 16px; padding: 22px; background: var(--brand-surface); border-left: 4px solid var(--brand-primary); border-radius: var(--radius-md); }
.contact-card strong { display: block; margin-bottom: 6px; color: var(--text-primary); }

.back-to-top { position: fixed; right: 24px; bottom: 24px; z-index: 20; display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; color: #FFFFFF; background: var(--brand-primary); border-radius: 50%; box-shadow: var(--shadow-md); opacity: 0; visibility: hidden; transition: all 0.15s ease; }
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--brand-primary-hover); transform: translateY(-1px); }

.footer { padding: 64px 0 28px; color: #94A3B8; background: #0F172A; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 48px; }
.footer-brand p { max-width: 340px; margin-top: 12px; color: #94A3B8; font-size: 0.9rem; line-height: 1.6; }
.footer-col h5 { margin-bottom: 16px; color: #FFFFFF; font-size: 0.9rem; letter-spacing: 0.05em; text-transform: uppercase; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; list-style: none; }
.footer-col a:hover { color: #FFFFFF; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-top: 24px; border-top: 1px solid #1E293B; font-size: 0.8125rem; }
.footer-disclaimer { max-width: 560px; color: #64748B; font-size: 0.75rem; text-align: right; }

@media (max-width: 960px) {
  .legal-layout { grid-template-columns: 190px minmax(0, 1fr); gap: 26px; }
  .legal-document { padding: 38px; }
}
@media (max-width: 900px) {
  .nav-links { display: none; }
  .menu-toggle { display: block; }
  .legal-layout { grid-template-columns: 1fr; }
  .contents-nav { position: static; }
  .contents-nav ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .container { padding-right: 18px; padding-left: 18px; }
  .nav-actions .btn { display: none; }
  .legal-hero { padding: 50px 0 44px; }
  .legal-hero h1 { font-size: 2.2rem; }
  .legal-hero p { font-size: 1.02rem; }
  .policy-switcher { flex-direction: column; }
  .legal-layout { padding-top: 36px; padding-bottom: 72px; }
  .contents-nav ol { grid-template-columns: 1fr; }
  .legal-document { padding: 28px 22px; }
  .document-header h2 { font-size: 1.7rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-disclaimer { text-align: left; }
}