*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:#f5f7fa;color:#2c3e50}:root{--primary: #3b82f6;--primary-dark: #2563eb;--success: #10b981;--danger: #ef4444;--warning: #f59e0b;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--color-positive-bg: #d1fae5;--color-positive-text: #065f46;--color-negative-bg: #fee2e2;--color-negative-text: #991b1b;--color-chart-primary: #3b82f6;--color-chart-secondary: #f59e0b;--color-chart-compare: rgba(156, 163, 175, .5);--color-chart-compare-border: rgba(156, 163, 175, 1);--color-login-gradient-start: #001a5e;--color-login-gradient-end: #003cff;--color-error-bg: #fee}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;font-size:.875rem;font-weight:500;border-radius:.375rem;border:none;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.card{background:#fff;border-radius:.5rem;box-shadow:0 1px 3px #0000001a;padding:1.5rem}.input{width:100%;padding:.5rem .75rem;font-size:.875rem;border:1px solid var(--gray-300);border-radius:.375rem;transition:border-color .2s}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #3b82f61a}.loading{width:2rem;height:2rem;border:3px solid var(--gray-200);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}