:root{--primary: #3b82f6;--primary-hover: #2563eb;--primary-rgb: 59, 130, 246;--bg: #f8fafc;--bg-secondary: #f1f5f9;--surface: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--text-tertiary: #94a3b8;--border: #e2e8f0;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--success: #22c55e;--warning: #f59e0b;--danger: #ef4444}[data-theme=dark]{--primary: #60a5fa;--primary-hover: #3b82f6;--primary-rgb: 96, 165, 250;--bg: #0f172a;--bg-secondary: #1e293b;--surface: #1e293b;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-tertiary: #64748b;--border: #334155;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .4), 0 2px 4px -2px rgb(0 0 0 / .3);--success: #4ade80;--warning: #fbbf24;--danger: #f87171}*,*:before,*:after{box-sizing:border-box}html,body{height:100%;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.5;color:var(--text-primary);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}input,textarea,select,button{font-family:inherit;font-size:inherit}input,textarea,select{padding:.625rem .875rem;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text-primary);transition:border-color .2s,box-shadow .2s}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #3b82f61a}input::placeholder,textarea::placeholder,select::placeholder{color:var(--text-secondary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1rem;border:1px solid transparent;border-radius:8px;font-weight:500;cursor:pointer;transition:all .2s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover:not(:disabled){background:var(--primary-hover);border-color:var(--primary-hover)}.btn-secondary{background:var(--surface);color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg-secondary)}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;line-height:1.25}