*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:linear-gradient(135deg,#0d1117,#161b22,#1a2332);min-height:100vh;color:#fff}.container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:20px}.card{background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);border-radius:24px;padding:50px 40px;text-align:center;max-width:480px;width:100%;box-shadow:0 25px 50px -12px #00000080}.whatsapp-icon{margin-bottom:24px;animation:bounce 2s infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}h1{font-size:1.8rem;margin-bottom:16px;background:linear-gradient(90deg,#25d366,#128c7e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.info{font-size:1rem;margin-bottom:8px;color:#c9d1d9}.description{font-size:.95rem;color:#8b949e;margin-bottom:32px;line-height:1.6}.whatsapp-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:linear-gradient(135deg,#25d366,#128c7e);color:#fff;border:none;padding:18px 40px;font-size:1.15rem;font-weight:700;border-radius:50px;cursor:pointer;transition:all .3s ease;box-shadow:0 8px 25px #25d36666;text-transform:uppercase;letter-spacing:.5px}.whatsapp-button:hover:not(:disabled){transform:translateY(-3px) scale(1.02);box-shadow:0 12px 35px #25d36680}.whatsapp-button:active:not(:disabled){transform:translateY(-1px) scale(.98)}.whatsapp-button:disabled{opacity:.7;cursor:not-allowed}.btn-icon{flex-shrink:0}.loading-text{display:flex;align-items:center;gap:8px}.loading-text:after{content:"";width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 480px){.card{padding:40px 24px}h1{font-size:1.4rem}.whatsapp-button{padding:16px 32px;font-size:1rem;width:100%}}