/* Header-only styles: scoped to .header to avoid touching legacy body CSS */
.header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid #e5e7eb;position:sticky;top:0;background:#fff;z-index:10}
.header .logo{margin:0;font-size:18px}
.header .logo a{text-decoration:none;color:#111}
.header .lang button{border:1px solid #e5e7eb;background:#fff;border-radius:9999px;padding:6px 12px;margin-left:8px;cursor:pointer;font-size:13px}
.header .lang [aria-pressed="true"]{background:#111;color:#fff;border-color:#111}
/* Reset nothing else */