:root{--bg-color: #0a0a0a;--surface-color: #111111;--text-color: #ffffff;--text-muted: #a3a3a3;--border-color: #262626;--primary-color: #ffffff;--primary-text: #000000;--primary-hover: #e5e5e5;--error-color: #dc3545;--focus-ring: rgba(255, 255, 255, .5);--font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif}.button{display:inline-block;width:100%;padding:.75rem 1rem;font-size:1rem;font-weight:500;text-align:center;text-decoration:none;border:none;border-radius:4px;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s,box-shadow .2s;box-sizing:border-box}.button:focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus-ring)}.button:disabled{opacity:.5;cursor:not-allowed}.button-primary{background-color:var(--primary-color);color:var(--primary-text)}.button-primary:hover:not(:disabled){background-color:var(--primary-hover)}.button-outline{background-color:transparent;color:var(--primary-color);border:1px solid var(--border-color)}.button-outline:hover:not(:disabled){background-color:var(--surface-color);border-color:var(--text-color)}