.site-header { position: sticky; top: 0; z-index: 100; background: #FFFFFF; border-bottom: 1px solid #E1E8F0; }
.header-strip { background: #0A1628; color: #FFFFFF; padding: 8px 0; font-size: 12px; }
.header-strip .strip-inner { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; text-align: center; padding: 0 20px; }
.header-strip .strip-warning { font-weight: 600; letter-spacing: 0.3px; }
.header-strip .strip-license { color: rgba(255, 255, 255, 0.6); font-weight: 500; }
.site-footer .header-strip { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 12px 0; }
.site-header .header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; max-width: 1200px; margin: 0 auto; gap: 16px; }
.site-header .logo-wrap { flex-shrink: 0; display: flex; }
.site-header .site-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.site-header .site-logo .logo-mark { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: #2962FF; border-radius: 8px; box-shadow: 0 4px 12px rgba(41, 98, 255, 0.25); }
.site-header .site-logo .logo-text { font-size: 18px; font-weight: 900; letter-spacing: -0.5px; color: #2962FF; }
.site-header .site-logo .logo-text .logo-accent { color: #2962FF; }

.site-nav { display: none; }
.site-nav .nav-list { display: flex; align-items: center; gap: 28px; }
.site-nav .nav-list .nav-item .nav-link { font-size: 14px; font-weight: 600; color: #2A3A4E; padding: 8px 0; position: relative; transition: color 0.2s ease; }
.site-nav .nav-list .nav-item .nav-link:hover { color: #2962FF; }
.site-nav .nav-list .nav-item .nav-link.is-active { color: #00C853; }
.site-nav .nav-list .nav-item .nav-link.is-active::after { content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: #00C853; border-radius: 2px; }

.site-header .header-actions { display: flex; align-items: center; gap: 12px; }

.menu-toggle { display: flex; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; }
.menu-toggle .menu-line { width: 24px; height: 2px; background: #0A1628; transition: transform 0.3s ease, opacity 0.3s ease; }
.menu-toggle.is-open .menu-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-open .menu-line:nth-child(2) { opacity: 0; }
.menu-toggle.is-open .menu-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav { position: fixed; top: 0; right: -100%; width: 280px; height: 100vh; background: #FFFFFF; box-shadow: -8px 0 32px rgba(10, 22, 40, 0.1); padding: 80px 24px 24px; transition: right 0.3s ease; z-index: 99; overflow-y: auto; }
.mobile-nav.is-open { right: 0; }
.mobile-nav .mobile-nav-list { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav .mobile-nav-list .mobile-nav-item .mobile-nav-link { display: block; padding: 14px 16px; font-size: 15px; font-weight: 600; color: #2A3A4E; border-radius: 8px; transition: background 0.2s ease, color 0.2s ease; }
.mobile-nav .mobile-nav-list .mobile-nav-item .mobile-nav-link:hover, .mobile-nav .mobile-nav-list .mobile-nav-item .mobile-nav-link.is-active { background: rgba(0, 200, 83, 0.08); color: #00C853; }

.mobile-nav-overlay { position: fixed; inset: 0; background: rgba(10, 22, 40, 0.5); opacity: 0; pointer-events: none; transition: opacity 0.3s ease; z-index: 98; }
.mobile-nav-overlay.is-open { opacity: 1; pointer-events: auto; }

@media (min-width: 1024px) {
  .site-nav { display: block; }
  .menu-toggle { display: none; }
}