.site-header .theme-picker{position:relative;z-index:20;display:block;width:106px;height:auto;padding:0;border:0;background:transparent;color:var(--ink)}
.theme-picker>summary{display:flex;align-items:center;gap:9px;min-height:38px;padding:0 11px;list-style:none;border:1px solid var(--line);border-radius:6px;background:var(--surface);font-size:13px;font-weight:700;cursor:pointer;user-select:none}
.theme-picker>summary::-webkit-details-marker{display:none}
.theme-picker>summary:focus-visible,.theme-menu button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.theme-picker>summary>i:first-child{color:var(--accent);font-size:15px}
.theme-picker .theme-chevron{margin-left:auto;color:var(--muted);font-size:10px;transition:transform .18s ease}
.theme-picker[open] .theme-chevron{transform:rotate(180deg)}
.theme-menu{position:absolute;top:calc(100% + 7px);right:0;width:134px;padding:5px;border:1px solid var(--line);border-radius:7px;background:var(--surface);box-shadow:0 12px 28px rgba(19,49,61,.18)}
.theme-menu button{display:flex;align-items:center;gap:10px;width:100%;min-height:37px;padding:0 10px;border:0;border-radius:4px;background:transparent;color:var(--ink);font:inherit;font-size:13px;text-align:left;cursor:pointer}
.theme-menu button i{width:16px;color:var(--muted);text-align:center}
.theme-menu button:hover,.theme-menu button[aria-pressed="true"]{background:var(--accent-soft);color:var(--ink)}
.theme-menu button[aria-pressed="true"]{font-weight:800}