:root{--color-bg: #fafafa;--color-surface: #ffffff;--color-text: #1f2937;--color-muted: #6b7280;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-border: #e5e7eb;--radius: 6px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text)}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover)}button{font:inherit;cursor:pointer;padding:.5rem 1rem;border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius)}button.primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}button.primary:hover{background:var(--color-primary-hover)}input,select,textarea{font:inherit;padding:.5rem;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface)}