:root{--bg-primary: #f8fafc;--bg-secondary: #ffffff;--bg-tertiary: #f1f5f9;--text-primary: #0f172a;--text-secondary: #475569;--text-tertiary: #94a3b8;--brand-primary: #2563eb;--brand-hover: #1d4ed8;--brand-light: #eff6ff;--border-color: #e2e8f0;--danger: #ef4444;--success: #22c55e;--warning: #f59e0b;--sidebar-width: 250px;--header-height: 64px;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-tertiary: #64748b;--border-color: #334155;--brand-primary: #3b82f6;--brand-hover: #60a5fa;--brand-light: #1e3a8a}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;line-height:1.5}h1,h2,h3,h4,h5,h6{font-weight:600;color:var(--text-primary);margin-bottom:.5rem}a{color:var(--brand-primary);text-decoration:none;transition:color .2s ease}a:hover{color:var(--brand-hover)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all .2s ease}.btn-primary{background-color:var(--brand-primary);color:#fff}.btn-primary:hover{background-color:var(--brand-hover)}.btn-outline{background-color:transparent;border-color:var(--border-color);color:var(--text-primary)}.btn-outline:hover{background-color:var(--bg-tertiary)}.card{background-color:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:0 1px 3px #0000001a,0 1px 2px -1px #0000001a}.input{width:100%;padding:.5rem .75rem;font-size:.875rem;border:1px solid var(--border-color);border-radius:var(--radius-md);background-color:var(--bg-primary);color:var(--text-primary);outline:none;transition:border-color .2s}.input:focus{border-color:var(--brand-primary);box-shadow:0 0 0 1px var(--brand-primary)}