:root{--bg-primary:#fff;--bg-secondary:#f9fafb;--bg-tertiary:#f3f4f6;--bg-selected:#eff6ff;--hover-color:#f3f4f6;--text-primary:#111827;--text-secondary:#4b5563;--text-muted:#9ca3af;--border-color:#e5e7eb;--accent-color:#2563eb;--accent-hover:#1d4ed8;--accent-light:#dbeafe;--success:#10b981;--warning:#f59e0b;--error:#ef4444;--icon-inbox:#3b82f6;--icon-sent:#10b981;--icon-drafts:#f59e0b;--icon-spam:#ef4444;--icon-trash:#6b7280;--icon-archive:#8b5cf6;--icon-default:#9ca3af;--font-base:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-heading:"Inter", sans-serif;--input-padding:8px 12px;--input-radius:6px;--input-font-size:14px;--btn-icon-padding:6px;--btn-icon-size:18px;--btn-padding:8px 16px;--btn-radius:6px;--btn-font-size:14px;--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f}body,html{width:100%;height:100%;font-family:var(--font-base);background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0}*{box-sizing:border-box}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);margin:0}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.w-full{width:100%}.h-full{height:100%}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#9ca3af}.theme-dark ::-webkit-scrollbar-thumb{background:#4b5563}.theme-dark ::-webkit-scrollbar-thumb:hover{background:#6b7280}.theme-dark{--modal-backdrop:#00000080;--toast-bg:var(--bg-tertiary,#374151);--toast-border:var(--border-color,#4b5563)}