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.settings-tabs { display:flex; gap:4px; margin-bottom:20px; border-bottom:2px solid #e0e0e0; padding-bottom:0; }
.settings-tabs a { padding:8px 16px; text-decoration:none; color:#666; font-size:14px; border-bottom:2px solid transparent; margin-bottom:-2px; transition:color .2s,border-color .2s; }
.settings-tabs a:hover { color:#333; }
.settings-tabs a.active { color:#1a73e8; border-bottom-color:#1a73e8; font-weight:600; }