:root{--bg:#f8f9fa;--surface:#ffffff;--border:#e5e7eb;--text:#1a1a1a;--muted:#6b7280;--nav-bg:#1e293b}[data-theme=dark]{--bg:#0f172a;--surface:#1e293b;--border:#334155;--text:#e2e8f0;--muted:#94a3b8;--nav-bg:#0f172a}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}@media (max-width:767px){a,button,input[type=button],input[type=submit]{min-height:44px}input,select,textarea{font-size:16px!important}.kanban-boards-container{overflow-x:auto!important;-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity}.kanban-list-column{min-width:260px!important;scroll-snap-align:start}}[dir=rtl]{text-align:right}