*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#f5f5f5,#e8e8e8);min-height:100vh;display:flex;justify-content:center;align-items:center;padding:20px}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.app{width:100%;max-width:900px;margin:0 auto}.container{background:#fff;border-radius:20px;padding:40px;box-shadow:0 20px 60px #0000004d;animation:fadeIn .5s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}header{text-align:center;margin-bottom:40px}header h1{font-size:2.5rem;color:#333;margin-bottom:10px;font-weight:700}.subtitle{color:#666;font-size:1.1rem}.ip-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:40px}.ip-card{background:linear-gradient(135deg,#4a4a4a,#2d2d2d);border-radius:15px;padding:30px;color:#fff;transition:transform .3s ease,box-shadow .3s ease;cursor:pointer;position:relative;overflow:hidden}.ip-card:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:#ffffff1a;opacity:0;transition:opacity .3s ease}.ip-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px #0003}.ip-card:hover:before{opacity:1}.ip-card.ipv6{background:linear-gradient(135deg,#5a5a5a,#3d3d3d)}.ip-label{font-size:.9rem;opacity:.9;margin-bottom:15px;text-transform:uppercase;letter-spacing:1px;font-weight:600}.ip-value{font-size:1.5rem;font-weight:700;word-break:break-all;position:relative;z-index:1;font-family:Courier New,monospace}.copy-hint{display:block;font-size:.7rem;opacity:.8;margin-top:8px;font-weight:400;font-style:italic}.info-section{margin-bottom:30px}.info-section h2{color:#333;margin-bottom:20px;font-size:1.5rem}.info-grid{display:flex;flex-direction:column;gap:15px}.info-item{display:flex;flex-direction:column;padding:15px;background:#f8f9fa;border-radius:10px;border-left:4px solid #6b6b6b}.info-label{font-weight:600;color:#666;font-size:.9rem;margin-bottom:5px;text-transform:uppercase;letter-spacing:.5px}.info-value{color:#333;font-size:1rem;word-break:break-word}.refresh-btn{width:100%;padding:15px;background:linear-gradient(135deg,#4a4a4a,#2d2d2d);color:#fff;border:none;border-radius:10px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;margin-top:20px}.refresh-btn:hover{transform:translateY(-2px);box-shadow:0 5px 20px #0003}.refresh-btn:active{transform:translateY(0)}.loading,.error{text-align:center;padding:60px 20px}.spinner{border:4px solid #f3f3f3;border-top:4px solid #4a4a4a;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading p,.error p{color:#666;font-size:1.1rem}.error h2{color:#8b8b8b;margin-bottom:10px}@media (max-width: 768px){.container{padding:25px}header h1{font-size:2rem}.ip-cards{grid-template-columns:1fr}.ip-value{font-size:1.2rem}}.toast{position:fixed;top:20px;left:50%;transform:translate(-50%);z-index:1000;animation:toastSlideIn .3s ease-out,toastSlideOut .3s ease-in 2.7s forwards}@keyframes toastSlideIn{0%{opacity:0;transform:translate(-50%) translateY(-20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@keyframes toastSlideOut{0%{opacity:1;transform:translate(-50%) translateY(0)}to{opacity:0;transform:translate(-50%) translateY(-20px)}}.toast-content{display:flex;align-items:center;gap:12px;background:#2d2d2d;color:#fff;padding:16px 24px;border-radius:12px;box-shadow:0 8px 24px #0000004d;font-size:.95rem;font-weight:500;min-width:200px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.toast-icon{width:20px;height:20px;color:#4ade80;flex-shrink:0;animation:checkmark .4s ease-out}@keyframes checkmark{0%{transform:scale(0);opacity:0}50%{transform:scale(1.2)}to{transform:scale(1);opacity:1}}