*{margin:0;padding:0;box-sizing:border-box}:root{--bg:#f8f9fa;--card:#ffffff;--border:#e2e8f0;--text:#1a202c;--text-muted:#718096;--primary:#2563eb;--primary-hover:#1d4ed8;--danger:#dc2626;--success:#16a34a;--warning:#f59e0b}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border:none;border-radius:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:background .15s}.btn-primary{background:var(--primary);color:white}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);color:white}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-outline:hover{background:#f1f5f9}.btn-ghost{background:transparent;color:var(--text-muted);padding:4px 8px}.btn-ghost:hover{color:var(--text);background:#f1f5f9}input,select,textarea{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(37,99,235,.1)}.card{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:24px}.badge{display:inline-block;padding:2px 8px;border-radius:9999px;font-size:12px;font-weight:500}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}