.public-nav{position:-webkit-sticky;position:sticky;top:0;z-index:100;width:100%;background:rgba(8,8,17,.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--color-border)}.nav-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;gap:32px}.nav-logo{display:flex;align-items:baseline;gap:2px;text-decoration:none;flex-shrink:0}.nav-logo-k{font-size:22px;font-weight:900;background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-1px}.nav-logo-k,.nav-logo-text{font-family:var(--font-heading)}.nav-logo-text{font-size:13px;font-weight:700;color:var(--color-text-secondary);letter-spacing:2px}.nav-tabs{display:flex;gap:4px;flex:1 1}.nav-tab{position:relative;display:flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-full);font-size:13px;font-weight:600;color:var(--color-text-muted);text-decoration:none;transition:color var(--transition-fast);white-space:nowrap;font-family:var(--font-heading)}.nav-tab.active,.nav-tab:hover{color:var(--color-text-primary)}.nav-tab-icon{font-size:13px;line-height:1}.nav-tab-indicator{position:absolute;inset:0;background:rgba(143,67,255,.18);border:1px solid rgba(143,67,255,.4);border-radius:var(--radius-full);z-index:-1}.nav-right{margin-left:auto;flex-shrink:0}.nav-home-link{font-size:13px;color:var(--color-text-muted);font-weight:500;transition:color var(--transition-fast)}.nav-home-link:hover{color:var(--color-text-primary)}@media (max-width:640px){.nav-inner{padding:0 16px;gap:16px}.nav-home-link,.nav-logo-text,.nav-tab-icon{display:none}}