:root{--primary: #3b82f6;--secondary: #6b7280;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #e2e8f0;--text-primary: #1f2937;--text-secondary: #6b7280;--text-muted: #9ca3af;--border: #e5e7eb;--shadow: 0 1px 3px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--editor-bg: #ffffff;--editor-text: #1f2937;--editor-selection: #dbeafe;--font-mono: "Fira Code", "Monaco", "Consolas", monospace;--font-sans: system-ui, -apple-system, sans-serif;--transition: all .2s ease}[data-theme=dark]{--bg-primary: #1f2937;--bg-secondary: #111827;--bg-tertiary: #374151;--text-primary: #f9fafb;--text-secondary: #d1d5db;--text-muted: #9ca3af;--border: #4b5563;--editor-bg: #111827;--editor-text: #f9fafb;--editor-selection: #1e40af;--shadow: 0 1px 3px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .3)}*{box-sizing:border-box}body{margin:0;padding:0;font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);transition:var(--transition)}#root{height:100vh;overflow:hidden}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{background:var(--editor-selection);color:var(--text-primary)}*:focus{outline:2px solid var(--primary);outline-offset:2px}button:focus,input:focus,textarea:focus{outline-offset:0}button{background:none;border:none;cursor:pointer;padding:0;font-family:inherit;color:inherit;transition:var(--transition)}input,textarea{font-family:inherit;color:inherit;background:inherit;border:none;outline:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:6px;font-size:.875rem;font-weight:500;transition:var(--transition);cursor:pointer;border:1px solid transparent}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:#2563eb}.btn-secondary{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover{background:var(--bg-tertiary)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-secondary);color:var(--text-primary)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-sm{padding:.25rem .5rem;font-size:.75rem}.btn-icon{padding:.5rem;border-radius:4px}.input{padding:.5rem .75rem;border:1px solid var(--border);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-size:.875rem;transition:var(--transition)}.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #3b82f61a}.input::placeholder{color:var(--text-muted)}.fade-in{animation:fadeIn .2s ease-in-out}.slide-in-left{animation:slideInLeft .3s ease-out}.slide-in-right{animation:slideInRight .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInLeft{0%{transform:translate(-100%)}to{transform:translate(0)}}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}@media (max-width: 768px){.btn{padding:.75rem 1rem;font-size:1rem}}