:root{--pointer-x: 50%;--pointer-y: 50%;--pointer-from-center: 0;--pointer-from-top: .5;--pointer-from-left: .5;--rotate-x: 0deg;--rotate-y: 0deg;--card-radius: 30px}.pc-card-wrapper{perspective:500px;transform:translateZ(.1px);position:relative;touch-action:none}.pc-card{height:80svh;max-height:540px;display:grid;aspect-ratio:.718;border-radius:var(--card-radius);position:relative;background:linear-gradient(145deg,#1a1a1a,#2a2a2a);box-shadow:0 20px 40px #0000004d,0 0 0 1px #ffffff1a;transition:transform 1s ease;transform:translateZ(.1px) rotateX(0) rotateY(0);overflow:hidden}.pc-card:hover,.pc-card.active{transition:none;transform:translateZ(.1px) rotateX(var(--rotate-y)) rotateY(var(--rotate-x));box-shadow:0 25px 50px #0006,0 0 0 1px #fff3}.pc-card *{display:grid;grid-area:1/-1;border-radius:var(--card-radius);transform:translateZ(.1px);pointer-events:none}.pc-inside{top:1px;right:1px;bottom:1px;left:1px;position:absolute;background:#000c;transform:translateZ(.01px)}.pc-shine,.pc-glare{display:none}.pc-avatar-content{overflow:hidden;z-index:10}.pc-avatar-content .avatar{width:100%;height:100%;position:absolute;left:50%;top:55%;transform:translate(-50%) translateY(-50%) scale(1.1);object-fit:cover;opacity:1;z-index:11}.pc-avatar-content:before{display:none}.pc-user-info{position:absolute;bottom:20px;left:20px;right:20px;z-index:12;display:flex;align-items:center;justify-content:space-between;background:#000000b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);border-radius:15px;padding:12px 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rgba(255,255,255,.3);border-radius:8px;padding:8px;color:#fff;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;width:36px;height:36px;flex-shrink:0;min-width:32px;min-height:32px}.pc-social-btn:hover{transform:translateY(-1px)}.pc-linkedin-btn:hover{background:#0077b54d;border-color:#0077b599;color:#0077b5}.pc-github-btn:hover{background:#3333334d;border-color:#3339;color:#333}.pc-social-btn svg{width:100%;height:100%;max-width:16px;max-height:16px}.pc-content{max-height:100%;overflow:hidden;text-align:center;position:relative;transform:translate3d(calc(var(--pointer-from-left) * -6px + 3px),calc(var(--pointer-from-top) * -6px + 3px),.1px)!important;z-index:5}.pc-details{width:100%;position:absolute;top:3em;display:flex;flex-direction:column;z-index:13}.pc-details h3{font-weight:700;margin:0;font-size:min(5svh,3em);color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.5)}.pc-details p{font-weight:500;position:relative;top:-12px;white-space:nowrap;font-size:16px;margin:0 auto;width:min-content;color:#ffffffe6;text-shadow:0 1px 2px rgba(0,0,0,.5)}@media (max-width: 768px){.pc-card{height:70svh;max-height:450px}.pc-details{top:2em}.pc-details h3{font-size:min(4svh,2.5em)}.pc-details p{font-size:14px}.pc-user-info{bottom:15px;left:15px;right:15px;padding:10px 12px;gap:10px;min-height:48px}.pc-mini-avatar{width:40px;height:40px}.pc-user-details{gap:10px}.pc-handle{font-size:13px}.pc-status{font-size:11px}.pc-contact-btn{padding:6px 12px;font-size:12px}.pc-social-buttons{gap:6px}.pc-social-btn{width:32px;height:32px;padding:6px;border-radius:6px;min-width:28px;min-height:28px}.pc-social-btn svg{max-width:14px;max-height:14px}}@media (max-width: 480px){.pc-card{height:60svh;max-height:380px}.pc-details{top:1.5em}.pc-details h3{font-size:min(3.5svh,2em)}.pc-details p{font-size:12px;top:-8px}.pc-user-info{bottom:12px;left:12px;right:12px;padding:8px 10px;border-radius:12px;gap:8px;min-height:44px}.pc-mini-avatar{width:36px;height:36px}.pc-user-details{gap:8px}.pc-user-text{gap:4px}.pc-handle{font-size:12px}.pc-status{font-size:10px}.pc-contact-btn{padding:5px 10px;font-size:11px}.pc-social-buttons{gap:4px;flex-direction:row;flex-wrap:nowrap}.pc-social-btn{width:28px;height:28px;padding:4px;border-radius:4px;min-width:24px;min-height:24px}.pc-social-btn svg{max-width:12px;max-height:12px}}@media (max-width: 320px){.pc-card{height:55svh;max-height:320px}.pc-details h3{font-size:min(3svh,1.5em)}.pc-details p{font-size:11px}.pc-user-info{padding:6px 8px;gap:6px;min-height:40px}.pc-mini-avatar{width:28px;height:28px}.pc-user-details{gap:6px}.pc-handle{font-size:11px}.pc-status{font-size:9px}.pc-contact-btn{padding:4px 8px;font-size:10px}.pc-social-buttons{gap:2px}.pc-social-btn{width:24px;height:24px;padding:2px;border-radius:3px;min-width:20px;min-height:20px}.pc-social-btn svg{max-width:10px;max-height:10px}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:system-ui,-apple-system,sans-serif;line-height:1.6;color:#333;background-color:#f5f5f5}.container{max-width:1200px;margin:0 auto;padding:20px}.btn{display:inline-block;padding:10px 20px;background:#007bff;color:#fff;text-decoration:none;border:none;border-radius:4px;cursor:pointer;font-size:14px}.btn:hover{background:#0056b3}.btn-secondary{background:#6c757d}.btn-outline{background:#fff;color:#007bff;border:1px solid #007bff}.card{background:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 4px #0000001a;margin-bottom:20px}.header{background:#fff;border-bottom:1px solid #ddd;padding:15px 0}.header-content{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:0 20px}.logo{font-size:24px;font-weight:700;color:#007bff;text-decoration:none}.nav{display:flex;gap:20px;align-items:center}.nav a{color:#666;text-decoration:none}.nav a:hover{color:#007bff}.hero{text-align:center;padding:100px 20px;background:linear-gradient(135deg,#f8f9fa,#e9ecef)}.hero h1{font-size:48px;margin-bottom:20px;color:#333}.hero p{font-size:18px;color:#666;margin-bottom:30px;max-width:600px;margin-left:auto;margin-right:auto}.form-group{margin-bottom:15px}.form-group label{display:block;margin-bottom:5px;font-weight:500}.form-group input{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;font-size:14px}.form-group input:focus{outline:none;border-color:#007bff}.error{color:#dc3545;font-size:12px;margin-top:5px}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.auth-card{width:100%;max-width:400px}.text-center{text-align:center}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.chat-container{height:calc(100vh - 60px);display:flex;flex-direction:column;max-width:800px;margin:0 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