:root{
  --nav-bg: rgba(255,255,255,0.85);
  --nav-border: rgba(15,23,42,0.12);
  --nav-text: #0F172A;
  --nav-muted: #475569;
  --nav-accent: #3B82F6;
  --chip-bg: rgba(59,130,246,0.10);
  --chip-border: rgba(59,130,246,0.35);
}
html[data-theme="dark"]{
  --nav-bg: rgba(2,6,23,0.75);
  --nav-border: rgba(255,255,255,0.12);
  --nav-text: #F1F5F9;
  --nav-muted: #CBD5E1;
  --nav-accent: #60A5FA;
  --chip-bg: rgba(96,165,250,0.12);
  --chip-border: rgba(96,165,250,0.35);
}
.cf-nav{
  position: sticky;
  top: 0;
  z-index: 9999;
  backdrop-filter: blur(10px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
}
.cf-nav-inner{
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 18px;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  font-family: "DM Sans", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
.cf-brand{
  display:flex;
  gap:10px;
  align-items:center;
  min-width: 260px;
}
.cf-brand .dot{
  width:10px; height:10px; border-radius: 999px;
  background: linear-gradient(135deg, var(--nav-accent), #A78BFA);
  box-shadow: 0 0 0 4px rgba(59,130,246,0.12);
}
.cf-brand a{
  color: var(--nav-text);
  text-decoration:none;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.cf-actions{
  display:flex;
  gap:10px;
  align-items:center;
  justify-content:flex-end;
  flex-wrap: wrap;
}
.cf-home{
  text-decoration:none;
  color: var(--nav-text);
  font-weight: 800;
  font-size: 0.95rem;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid var(--chip-border);
  background: var(--chip-bg);
}
.cf-home:hover{ filter: brightness(0.98); }
.cf-icon-btn{
  border: 1px solid var(--nav-border);
  background: transparent;
  color: var(--nav-text);
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.cf-icon-btn:hover{ border-color: var(--chip-border); }
.cf-icon{
  font-size: 16px;
  line-height: 1;
}
@media (max-width: 720px){
  .cf-brand{min-width: unset;}
}
.cf-complete.is-done{
  border-color: rgba(34,197,94,0.45);
  background: rgba(34,197,94,0.14);
}
html[data-theme="dark"] .cf-complete.is-done{
  border-color: rgba(34,197,94,0.55);
  background: rgba(34,197,94,0.18);
}