body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:#f1f5f9;color:#0f172a}*{box-sizing:border-box}a{color:#2563eb}.card{background:#fff;padding:20px;border-radius:14px;box-shadow:0 10px 24px #0f172a0f;border:1px solid #e2e8f0}.card-title{font-size:14px;color:#64748b;margin:0 0 6px}.card-value{font-size:28px;font-weight:700;margin:0;color:#0f172a}.btn{padding:10px 16px;border:none;border-radius:10px;cursor:pointer;font-weight:700;transition:filter .2s ease}.btn:hover{filter:brightness(.97)}.btn.primary{background:#2563eb;color:#fff}.btn.secondary{background:#e2e8f0;color:#0f172a}.btn.danger{background:#dc2626;color:#fff}