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0;color:#b3d9ff;font-size:.9em}@media(max-width:1024px){.footer-content{grid-template-columns:1fr;gap:30px}}@media(max-width:768px){.footer-content{grid-template-columns:1fr;gap:30px;padding:30px 20px}.social-links{flex-direction:row;flex-wrap:wrap;gap:8px}.social-link{padding:6px 10px;font-size:.9em}}@media(max-width:480px){.footer-content{padding:20px 15px}.footer-bottom-content{padding:15px}.footer-bottom p{font-size:.8em}}.app{min-height:100vh;display:flex;flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;line-height:1.6;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);background-attachment:fixed}.app-header{background:linear-gradient(135deg,#0f0f23,#1a1a2e,#16213e);padding:80px 20px;position:relative;overflow:hidden;color:#fff;border-bottom:1px solid rgba(255,255,255,.1)}.app-header:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 40%,rgba(120,119,198,.3) 0%,transparent 50%),radial-gradient(circle at 80% 60%,rgba(255,119,198,.2) 0%,transparent 50%),radial-gradient(circle at 50% 50%,rgba(75,192,192,.1) 0%,transparent 50%);pointer-events:none}.header-content{max-width:1200px;margin:0 auto;position:relative;z-index:1}.header-main{display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap}.header-icon{animation:float 6s ease-in-out infinite;perspective:800px}.cube-container{position:relative;width:100px;height:100px;transform-style:preserve-3d}.cube{position:relative;width:100px;height:100px;transform-style:preserve-3d;animation:cubeRotate 12s linear infinite}.cube:hover{animation-play-state:paused}.cube-face{position:absolute;width:100px;height:100px;background:linear-gradient(135deg,#1a1a2e,#16213e,#0f0f23);border:2px solid rgba(78,205,196,.6);border-radius:8px;display:flex;flex-direction:column;justify-content:center;align-items:center;font-weight:700;color:#fff;box-shadow:0 0 15px #4ecdc44d,inset 0 0 15px #4ecdc41a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);font-size:.8rem}.cube-face.front{transform:translateZ(50px)}.cube-face.back{transform:translateZ(-50px) rotateY(180deg)}.cube-face.right{transform:rotateY(90deg) translateZ(50px)}.cube-face.left{transform:rotateY(-90deg) translateZ(50px)}.cube-face.top{transform:rotateX(90deg) translateZ(50px)}.cube-face.bottom{transform:rotateX(-90deg) translateZ(50px)}.cube-face .block-number{font-size:1.4rem;color:#4ecdc4;text-shadow:0 0 10px rgba(78,205,196,.8);margin-bottom:4px}.cube-face .block-label,.cube-face .hash-text,.cube-face .block-text,.cube-face .chain-text,.cube-face .data-text,.cube-face .nonce-text{font-size:.6rem;color:#ffffffe6;text-transform:uppercase;letter-spacing:1px}@keyframes cubeRotate{0%{transform:rotateX(0) rotateY(0)}to{transform:rotateX(360deg) rotateY(360deg)}}.header-text{text-align:center}.header-title{margin:0 0 20px;font-size:clamp(3rem,6vw,5rem);font-weight:900;line-height:1.1;text-shadow:0 4px 8px rgba(0,0,0,.3)}.title-highlight{background:linear-gradient(135deg,gold,#ff6b6b,#4ecdc4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:none;animation:shimmer 3s ease-in-out infinite}.header-subtitle{font-size:clamp(1.2rem,3vw,1.6rem);color:#fffc;font-weight:300;max-width:700px;margin:0 auto;line-height:1.4}@keyframes float{0%,to{transform:translateY(0)}33%{transform:translateY(-10px)}66%{transform:translateY(-5px)}}@keyframes shimmer{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.app-main{flex:1;max-width:1400px;margin:0 auto;padding:40px 20px;width:100%;box-sizing:border-box}*{box-sizing:border-box}button,input,textarea,select{font-family:inherit}@media(max-width:768px){.app-header{padding:30px 15px}.app-header h1{font-size:2em}.app-header p{font-size:1.1em}.app-main{padding:20px 15px}}@media(max-width:480px){.app-header h1{font-size:1.8em}.app-header p{font-size:1em}.app-main{padding:15px 10px}}@media(max-width:768px){.app-header{padding:60px 15px}.header-main{gap:25px}.blockchain-icon{font-size:4rem}.header-title{font-size:clamp(2.5rem,8vw,3.5rem)}.header-subtitle{font-size:clamp(1rem,4vw,1.3rem)}}@media(max-width:480px){.app-header{padding:40px 10px}.header-main{flex-direction:column;gap:20px}.blockchain-icon{font-size:3rem}.header-title{font-size:clamp(2rem,10vw,2.8rem)}.header-subtitle{font-size:clamp(.9rem,5vw,1.1rem);padding:0 10px}}