/* V16 signature navigation — scoped to immersive overlay; Home and other pages unchanged. */
.z15-overlay .z15-controls{max-width:290px}
.z15-overlay .z15-control-title{letter-spacing:.19em;margin-bottom:12px}
.z15-overlay .z16-nav-headline{font-size:clamp(19px,1.5vw,24px);line-height:1.2;letter-spacing:-.035em;color:#0b182a;font-weight:650;margin:0 0 24px}
.z15-overlay .z15-nav{gap:3px;position:relative;border-left:1px solid #ded8d0}
.z15-overlay .z15-nav button{display:flex;align-items:center;justify-content:flex-start;gap:0;min-height:70px;position:relative;width:100%;border:0;border-radius:0 9px 9px 0;background:transparent;box-shadow:none;padding:12px 14px 12px 23px;color:#334256;transition:background .18s ease,color .18s ease;white-space:normal}
.z15-overlay .z15-nav button .z16-nav-accent{position:absolute;top:13px;bottom:13px;width:3px;left:-2px;border-radius:4px;background:transparent;transition:background .18s ease}
.z15-overlay .z15-nav button .z16-nav-copy{display:flex;flex-direction:column;align-items:flex-start;gap:4px;min-width:0}
.z15-overlay .z15-nav button .z16-nav-name{font-size:16px;font-weight:610;letter-spacing:-.018em}
.z15-overlay .z15-nav button .z16-nav-description{font-size:11px;font-weight:440;letter-spacing:0;color:#778293;line-height:1.45}
.z15-overlay .z15-nav button[aria-current=page]{background:#f5efe5;color:#152237;border:0;box-shadow:none}
.z15-overlay .z15-nav button[aria-current=page] .z16-nav-accent{background:#a67734}
.z15-overlay .z15-nav button[aria-current=page] .z16-nav-name{font-weight:740}
.z15-overlay .z15-nav button:hover{border:0;background:#f3f0e9}
.z15-overlay .z15-controls .z15-hint{border-top:1px solid #dfd9d0;padding-top:19px;margin-top:21px;font-size:12px;line-height:1.7}
@media(max-width:1050px){.z15-overlay .z15-controls{max-width:220px}.z15-overlay .z15-nav button{padding-left:15px;min-height:66px}.z15-overlay .z15-nav button .z16-nav-description{font-size:10px}}
@media(max-width:750px){.z15-overlay .z16-nav-headline{display:none}.z15-overlay .z15-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;border-left:0;border-bottom:1px solid #ded8d0}.z15-overlay .z15-nav button{border-radius:8px 8px 0 0;min-height:43px;justify-content:center;padding:7px 2px 9px}.z15-overlay .z15-nav button .z16-nav-copy{align-items:center}.z15-overlay .z15-nav button .z16-nav-name{font-size:11px}.z15-overlay .z15-nav button .z16-nav-description{display:none}.z15-overlay .z15-nav button .z16-nav-accent{width:auto;height:3px;left:15%;right:15%;top:auto;bottom:-2px}.z15-overlay .z15-nav button[aria-current=page]{background:#f5efe5}}
@media(prefers-reduced-motion:reduce){.z15-overlay .z15-nav button,.z15-overlay .z15-nav button .z16-nav-accent{transition:none}}