:root{--primary-green:#26b69a;--primary-green-light:#4ebaa1;--primary-purple:#2d264b;--accent-pink:#000;--accent-yellow:#fcc419;--tick-gold:#fff;--bg-body:#e5e7eb;--bg-main:#f5f6f7;--bg-white:#fff;--bg-input:#f0f2f5;--bg-received:#e9e4f5;--border-light:#f0f0f0;--text-dark:#2d264b;--text-muted:#999;--text-white:#fff;--shadow-main:#0000001a}.dark-theme{--bg-body:#121212;--bg-main:#1e1e1e;--bg-white:#252525;--bg-input:#333;--bg-received:#3a3a3a;--border-light:#333;--text-dark:#e0e0e0;--text-muted:#aaa;--shadow-main:#00000080}*{box-sizing:border-box;margin:0;padding:0;font-family:Segoe UI,Roboto,Helvetica,Arial,sans-serif;transition:background-color .3s,border-color .3s,color 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i{color:#ff4d4d;font-size:2rem}.document-info{flex-direction:column;display:flex}.document-name{white-space:nowrap;text-overflow:ellipsis;max-width:150px;font-size:.9rem;font-weight:600;overflow:hidden}.document-size{opacity:.7;font-size:.75rem}.emoji-section{color:#666;align-items:center;gap:15px;display:flex}.emoji-section i{cursor:pointer;font-size:1.4rem}.emoji-picker-container{z-index:1000;border-radius:10px;position:absolute;bottom:60px;left:0;overflow:hidden;box-shadow:0 10px 25px #00000026}.chat-input{border-top:1px solid var(--border-light);background:var(--bg-white);flex-shrink:0;align-items:center;gap:15px;padding:15px 20px;display:flex;position:relative}.chat-input input[type=text]{background:var(--bg-input);color:var(--text-dark);border:none;border-radius:20px;outline:none;flex:1;padding:10px 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input{box-sizing:border-box;color:#121212;background:#f0f2f5;border:none;border-radius:14px;width:100%;height:52px;padding:0 20px;font-size:16px;transition:all .3s}.auth-form input:focus{box-shadow:0 0 0 2px var(--logo-purple);background:#fff;outline:none}.auth-btn{box-sizing:border-box;cursor:pointer;border:none;border-radius:14px;width:95%;height:52px;margin-top:10px;font-size:16px;font-weight:700;transition:transform .2s,background .3s}.toggle-btn{box-sizing:border-box;cursor:pointer;background-color:#32ac9d;border:1px solid #ddd;border-radius:14px;width:95%;height:52px;margin-top:10px;font-size:16px;font-weight:700;transition:transform .2s,background .3s}.auth-btn{background:var(--logo-dark);color:#fff}.auth-btn:hover,.toggle-btn:hover{background:var(--logo-purple);transform:translateY(-2px)}.fade-in{animation:.5s cubic-bezier(.175,.885,.32,1.275) forwards scatterIn}@keyframes scatterIn{0%{opacity:0;transform:scale(.9)translateY(20px)}to{opacity:1;transform:scale(1)translateY(0)}}.login-btn-loader{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:.8s linear infinite btnSpin;display:inline-block}@keyframes btnSpin{to{transform:rotate(360deg)}}.auth-btn:disabled{opacity:.7;cursor:not-allowed}.forgot input{box-sizing:border-box;color:#121212;background:#f0f2f5;border:none;border-radius:14px;width:100%;height:52px;padding:0 20px;font-size:16px;transition:all .3s}.forgot-link{color:var(--logo-purple);cursor:pointer;align-self:flex-end;margin-top:-5px;font-size:13px;font-weight:600;transition:opacity .3s}.forgot-link:hover{opacity:.8;text-decoration:underline}.center-toggle .toggle-btn:hover{border-color:var(--logo-purple);background:#f8f9fa}.error-message{color:#ff4d4d;margin-top:-5px;margin-left:5px;font-size:13px;font-weight:600;animation:.3s ease-in-out shake}.success-message{color:#28a745;margin-top:-5px;margin-left:5px;font-size:13px;font-weight:600;animation:.5s fadeIn}.about-full-page{width:100%;height:100vh;margin:0;padding:0;display:block;overflow-y:auto;background:#fff!important}.about-page-wrapper{box-shadow:none!important;background:0 0!important;border:none!important;width:100%!important;max-width:100%!important;height:auto!important;margin:0!important;padding:0!important;display:block!important}.about-content{color:#858585;background-color:#0000;max-width:800px;margin:0 auto;padding:2rem;line-height:1.6}.about-intro{font-size:1.2rem}.about-cta{text-align:center;background-color:#f8f9fa;border:1px solid #dee2e6;border-radius:8px;margin-top:40px;padding:20px}.cta-btn{color:#fff;cursor:pointer;background-color:#007bff;border:none;border-radius:5px;margin-top:10px;padding:10px 20px;font-weight:700;display:inline-block}.back-btn{color:#007bff;cursor:pointer;background:0 0;border:none;margin-top:30px;font-size:1rem;font-weight:700}.back-btn:hover{text-decoration:underline}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:linear-gradient(to bottom, var(--logo-purple), var(--logo-green));border-radius:10px}*{scrollbar-width:thin;scrollbar-color:var(--logo-purple) transparent}@media (width<=800px){.auth-card{background:#fff;border-radius:28px;flex-direction:column;justify-content:flex-start;align-items:center;width:90%;max-width:400px;height:85vh;padding:40px;display:flex}.auth-card.register-view-active{border:1px solid var(--logo-green);max-width:800px;height:auto;max-height:90vh;overflow-y:auto}.verify{padding-top:40px}.about-content{padding:2rem 1rem;line-height:1.5}.about-content h1{margin-bottom:1rem;font-size:1.8rem}.about-content h2{margin-top:1.5rem;font-size:1.4rem}.about-intro{font-size:1rem!important}.about-cta{margin-top:20px;padding:15px}.about-cta h3{font-size:1.2rem}.cta-btn{width:100%;padding:12px}.back-btn{justify-content:center;width:100%;padding:15px 0;display:flex}}