*,*:before,*:after{box-sizing:border-box}:root{--color-bg: #f8f9fa;--color-surface: #ffffff;--color-border: #dee2e6;--color-text: #212529;--color-text-muted: #6c757d;--color-primary: #0d6efd;--color-primary-hover: #0b5ed7;--color-danger: #dc3545;--radius: 6px;--shadow: 0 1px 3px rgba(0, 0, 0, .1)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5;color:var(--color-text);background-color:var(--color-bg)}a{color:var(--color-primary)}button{cursor:pointer;font-family:inherit;font-size:1rem;border-radius:var(--radius);border:1px solid transparent;padding:.5rem 1rem;transition:background-color .15s,border-color .15s}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-hover)}.btn-secondary{background-color:transparent;border-color:var(--color-border);color:var(--color-text)}.btn-secondary:hover{background-color:var(--color-border)}