/* ── NAVIGATION ── */
nav{position:fixed;inset:0 0 auto;z-index:100;height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 40px;transition:background .3s,border-bottom .3s}
nav.s{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.n-logo{font-size:13px;font-weight:700;letter-spacing:.02em;text-transform:uppercase;cursor:pointer;text-decoration:none;color:var(--ink)}
.n-links{display:flex;align-items:center;gap:2px}
.n-btn{font-size:12px;font-weight:500;color:var(--ink2);padding:6px 14px;border:none;background:none;cursor:pointer;transition:color .15s;letter-spacing:.01em}
.n-btn:hover,.n-btn.on{color:var(--ink)}
.n-btn.on{font-weight:700}