:root{--hdr-border:rgba(0,0,0,.08);--hdr-shadow:0 6px 24px rgba(0,0,0,.08);--brand:#1f4fd4;--ink:#0f172a;--muted:#64748b}@media (prefers-color-scheme:dark){:root{--hdr-border:hsla(0,0%,100%,.08);--hdr-shadow:0 6px 24px rgba(0,0,0,.45);--brand:#666;--ink:#666;--muted:#94a3b8}}.dream-header{position:sticky;top:0;z-index:50;width:100%;-webkit-backdrop-filter:saturate(120%) blur(10px);backdrop-filter:saturate(120%) blur(10px);background:transparent;border-bottom:1px solid var(--hdr-border);transition:box-shadow .2s ease,height .2s ease;height:68px;box-sizing:border-box}.dream-header.is-elevated{box-shadow:var(--hdr-shadow)}.dream-header.is-condensed{height:56px}.dream-header-inner{max-width:1040px;height:100%;margin:0 auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:grid;grid-template-columns:1fr;text-decoration:none;line-height:1.1}.brand-title{font-size:1.375rem;font-weight:800;letter-spacing:.02em;color:var(--ink)}.brand-sub{margin-top:2px;font-size:.75rem;color:var(--muted)}.dream-header-nav{display:flex;align-items:center;gap:18px}.nav-link{position:relative;font-size:.95rem;color:var(--brand);text-decoration:none;padding:6px 2px;border-radius:6px;transition:opacity .15s ease}.nav-link:hover{opacity:.85}.nav-link.is-active:after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--brand);border-radius:2px}@media (max-width:640px){.brand-title{font-size:1.1rem}.brand-sub{display:none}.dream-header-nav{gap:14px}}