.theme-toggle{position:fixed;bottom:2rem;right:2rem;background:#fff0;border:none;cursor:pointer;z-index:1000;opacity:.8;transition:opacity 0.3s;width:48px;height:48px}.theme-toggle:hover{opacity:1}.theme-toggle img{width:32px;height:32px;position:absolute;transition:opacity 0.3s}[data-theme="light"] .theme-toggle .moon-icon{opacity:0;transform:scale(.8)}[data-theme="dark"] .theme-toggle .sun-icon{opacity:0;transform:scale(.8)}[data-theme="dark"] .moon-icon,[data-theme="light"] .sun-icon{opacity:1;transform:scale(1)}[data-theme="light"]{--primary:#c7c7c7;--secondary:#f5f5f5;--tertiary:#eeeeee;--quaternary:#bbbbbb;--accent:#007bff;--light:#2d2d2d;--dark:#e0e0e0;--surface:#eeeeee;--border:rgba(0,0,0,0.1)}[data-theme="light"] body{color:#2d2d2d}[data-theme="light"] .scan-card,[data-theme="light"] .modal-content,[data-theme="light"] .sidebar,[data-theme="light"] .navbar{box-shadow:0 2px 8px rgb(0 0 0 / .1)}.logo-dark{display:block}.logo-light{display:none}[data-theme="light"] .logo-dark{display:none}[data-theme="light"] .logo-light{display:block}