:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--primary-color: #0069ff;--primary-hover: #0056d0;--primary-light: rgba(0, 105, 255, .1);--background-color: #0f0f0f;--surface-color: #1a1a1a;--surface-secondary: #2a2a2a;--surface-tertiary: #333333;--text-primary: rgba(255, 255, 255, .87);--text-secondary: rgba(255, 255, 255, .6);--text-muted: rgba(255, 255, 255, .4);--border-color: rgba(255, 255, 255, .1);--input-border: rgba(255, 255, 255, .2);--input-focus-border: #0069ff;--input-bg: rgba(255, 255, 255, .05);--error-color: #ef4444;--success-color: #10b981;--warning-color: #f59e0b;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--card-shadow: 0 4px 6px -1px rgba(0, 0, 0, .3), 0 2px 4px -1px rgba(0, 0, 0, .2);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .2);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .4);color:var(--text-primary);background-color:var(--background-color)}@media(prefers-color-scheme:light){:root{--primary-color: #0069ff;--primary-hover: #0056d0;--primary-light: rgba(0, 105, 255, .1);--background-color: #f5f5f5;--surface-color: #ffffff;--surface-secondary: #f9fafb;--surface-tertiary: #f3f4f6;--text-primary: #1f2937;--text-secondary: #6b7280;--text-muted: #9ca3af;--border-color: #e5e7eb;--input-border: #d1d5db;--input-focus-border: #0069ff;--input-bg: #ffffff;--error-color: #dc2626;--success-color: #059669;--warning-color: #d97706;--card-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);color:var(--text-primary);background-color:var(--background-color)}}*{box-sizing:border-box}body{margin:0;display:block;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}a{font-weight:500;color:var(--primary-color);text-decoration:inherit;transition:color .2s}a:hover{color:var(--primary-hover)}.btn{border-radius:var(--radius-md);border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:.5rem}.btn-primary{background-color:var(--primary-color);color:#fff;border:none}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background-color:var(--surface-secondary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background-color:var(--surface-tertiary)}button:focus,button:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}.full-width{width:100%}input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{font-family:inherit;font-size:1rem}.card{background:var(--surface-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:20px;margin-bottom:20px;border:1px solid var(--border-color)}