.site-header{position:fixed;top:0;left:0;right:0;z-index:40;background:rgba(255,255,255,.82);backdrop-filter:blur(16px);border-bottom:1px solid rgba(217,232,242,.9)}
.site-header .inner{width:min(var(--max),calc(100% - 32px));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;font-family:Sora,sans-serif;font-weight:800;color:var(--navy)}
.brand-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--cyan),var(--teal));display:grid;place-items:center;color:#03273b;box-shadow:0 10px 24px rgba(0,191,234,.25)}
.brand small{display:block;font:600 11px/1.2 'JetBrains Mono',monospace;letter-spacing:.15em;color:var(--muted);text-transform:uppercase}
.nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.nav a{padding:10px 12px;border-radius:12px;color:var(--navy);font-weight:600;font-size:15px}.nav a.active,.nav a:hover{background:var(--surface-soft)}
.header-actions{display:flex;align-items:center;gap:10px}.menu-toggle{display:none;border:1px solid var(--border);background:#fff;border-radius:12px;padding:10px 12px;font-weight:700}
.site-footer{margin-top:80px;padding:48px 0;background:#fff;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:22px}.footer-title{font:700 14px/1 Sora,sans-serif;color:var(--navy);margin-bottom:14px}.footer-links{display:grid;gap:10px}.footer-links a{color:var(--text-soft);font-size:15px}.footer-bottom{margin-top:28px;padding-top:18px;border-top:1px solid var(--border);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:14px}
@media (max-width:900px){.nav{display:none;position:absolute;top:74px;left:10px;right:10px;background:#fff;border:1px solid var(--border);border-radius:20px;padding:14px;box-shadow:var(--shadow-soft);flex-direction:column;align-items:stretch}.nav.open{display:flex}.menu-toggle{display:block}.header-actions .btn{display:none}.footer-grid{grid-template-columns:1fr 1fr}.site-header .inner{width:min(var(--max),calc(100% - 20px))}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr}}