.navbar{background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 2px 10px #0000001a;position:sticky;top:0;z-index:1000;border-bottom:1px solid rgba(255,255,255,.1)}.navbar-container{max-width:1200px;margin:0 auto;padding:0 1rem;display:flex;justify-content:space-between;align-items:center;height:70px}.navbar-brand{display:flex;align-items:center;text-decoration:none;color:#fff;font-size:1.5rem;font-weight:700;transition:all .3s ease}.navbar-brand:hover{color:#f0f0f0;transform:translateY(-1px)}.navbar-icon{font-size:1.8rem;margin-right:.5rem;animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.navbar-menu{display:flex;align-items:center;gap:1.5rem}.navbar-link{color:#fff;text-decoration:none;font-weight:500;padding:.5rem 1rem;border-radius:20px;transition:all .3s ease;position:relative;overflow:hidden}.navbar-link:hover{background:#ffffff26;transform:translateY(-2px);color:#f0f0f0}.navbar-link:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}.navbar-link:hover:before{left:100%}.navbar-user{display:flex;align-items:center;gap:1rem;background:#ffffff1a;padding:.5rem 1rem;border-radius:25px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2)}.user-info{color:#fff;font-weight:500;font-size:.9rem}.logout-btn{background:linear-gradient(45deg,#ff6b6b,#ee5a52);color:#fff;border:none;padding:.5rem 1rem;border-radius:20px;font-weight:500;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 5px #0003}.logout-btn:hover{background:linear-gradient(45deg,#ee5a52,#ff6b6b);transform:translateY(-2px);box-shadow:0 4px 8px #0000004d}.logout-btn:active{transform:translateY(0);box-shadow:0 2px 5px #0003}@media (max-width: 768px){.navbar-container{padding:0 .5rem;height:60px}.navbar-brand{font-size:1.3rem}.navbar-icon{font-size:1.5rem}.navbar-menu{gap:.8rem}.navbar-link{padding:.4rem .8rem;font-size:.9rem}.navbar-user{flex-direction:column;gap:.5rem;padding:.4rem .8rem;background:#ffffff1a}.user-info{font-size:.8rem;text-align:center}.logout-btn{padding:.4rem .8rem;font-size:.8rem}}@media (max-width: 480px){.navbar-container{flex-direction:column;height:auto;padding:.5rem;gap:.5rem}.navbar-menu{width:100%;justify-content:center;flex-wrap:wrap}.navbar-user{flex-direction:row;justify-content:center}}.navbar-link:focus,.logout-btn:focus{outline:2px solid rgba(255,255,255,.5);outline-offset:2px}.navbar-brand:focus{outline:2px solid rgba(255,255,255,.5);outline-offset:2px;border-radius:4px}.mainpage-container{min-height:calc(100vh - 70px);background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:center;align-items:center;padding:2rem;position:relative;overflow:hidden}.mainpage-container:before{content:"";position:absolute;inset:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');pointer-events:none}.mainpage-content{text-align:center;max-width:800px;width:100%;animation:fadeInUp .8s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}.mainpage-header{margin-bottom:4rem}.mainpage-icon{font-size:4rem;margin-bottom:1rem;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.mainpage-header h1{color:#fff;font-size:3.5rem;font-weight:800;margin-bottom:1rem;text-shadow:0 2px 4px rgba(0,0,0,.1);line-height:1.2}.mainpage-header p{color:#ffffffe6;font-size:1.3rem;font-weight:300;margin:0}.mainpage-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:4rem}.feature{background:#ffffff1a;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:2rem;border:1px solid rgba(255,255,255,.2);transition:all .3s ease;animation:slideInUp .6s ease-out;animation-fill-mode:both}.feature:nth-child(1){animation-delay:.1s}.feature:nth-child(2){animation-delay:.2s}.feature:nth-child(3){animation-delay:.3s}@keyframes slideInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.feature:hover{transform:translateY(-5px);background:#ffffff26;box-shadow:0 10px 30px #0000001a}.feature-icon{font-size:2.5rem;margin-bottom:1rem}.feature h3{color:#fff;font-size:1.3rem;font-weight:600;margin-bottom:.5rem}.feature p{color:#fffc;font-size:1rem;line-height:1.5;margin:0}.mainpage-actions{animation:slideInUp .6s ease-out .4s both}.auth-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.primary-btn,.secondary-btn{padding:1rem 2.5rem;border-radius:50px;font-size:1.1rem;font-weight:600;text-decoration:none;transition:all .3s ease;display:inline-block;min-width:120px;text-align:center}.primary-btn{background:#ffffffe6;color:#667eea;box-shadow:0 4px 15px #0000001a}.primary-btn:hover{background:#fff;transform:translateY(-3px);box-shadow:0 6px 20px #00000026}.secondary-btn{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.8)}.secondary-btn:hover{background:#ffffff1a;border-color:#fff;transform:translateY(-3px)}@media (max-width: 768px){.login-box{padding:2rem 1.5rem;margin:1rem}.login-header h1{font-size:1.8rem}.chat-icon,.mainpage-icon,.mainpage-header h1{font-size:2.5rem}.mainpage-header p{font-size:1.1rem}.mainpage-features{grid-template-columns:1fr;gap:1.5rem;margin-bottom:3rem}.feature{padding:1.5rem}.auth-buttons{flex-direction:column;align-items:center}.primary-btn,.secondary-btn{width:200px}}@media (max-width: 480px){.login-container,.mainpage-container{padding:1rem}.login-box{padding:1.5rem 1rem}.username-input,.join-button{padding:.8rem 1rem}.mainpage-header h1{font-size:2rem}.mainpage-header p{font-size:1rem}.feature{padding:1rem}.feature h3{font-size:1.1rem}.feature p{font-size:.9rem}}.login-container{min-height:calc(100vh - 70px);background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:center;align-items:center;padding:2rem 1rem;position:relative;overflow:hidden}.login-container:before{content:"";position:absolute;inset:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');pointer-events:none}.login-box{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:2.5rem 2.5rem 2rem;box-shadow:0 20px 40px #00000026;border:1px solid rgba(255,255,255,.2);width:100%;max-width:440px;position:relative;animation:slideUp .6s ease-out}.login-header{text-align:center;margin-bottom:1.5rem}.login-header h1{color:#333;font-size:2rem;font-weight:700;margin-bottom:.3rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-header p{color:#888;font-size:.95rem;margin:0}.login-form{display:flex;flex-direction:column;gap:1rem;animation:fadeIn .3s ease}@media (max-width: 480px){.login-box{padding:2rem 1.5rem 1.5rem;border-radius:16px}.auth-tab{font-size:.72rem;padding:.5rem .3rem}.login-header h1{font-size:1.5rem}}.signup-container{min-height:calc(100vh - 70px);background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:center;align-items:center;padding:2rem 1rem;position:relative;overflow:hidden}.signup-container:before{content:"";position:absolute;inset:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');pointer-events:none}.signup-box{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:2.5rem 2.5rem 2rem;box-shadow:0 20px 40px #00000026;border:1px solid rgba(255,255,255,.2);width:100%;max-width:440px;position:relative;animation:slideUp .6s ease-out}.signup-header{text-align:center;margin-bottom:1.5rem}.signup-header h1{color:#333;font-size:2rem;font-weight:700;margin-bottom:.3rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.signup-header p{color:#888;font-size:.95rem;margin:0}.auth-tabs{display:flex;gap:.4rem;margin-bottom:1.5rem;background:#f0f0f5;border-radius:12px;padding:4px}.auth-tab{flex:1;padding:.6rem .4rem;border:none;background:transparent;border-radius:10px;font-size:.8rem;font-weight:600;color:#888;cursor:pointer;transition:all .3s ease;white-space:nowrap}.auth-tab:hover{color:#667eea;background:#667eea14}.auth-tab.active{background:#fff;color:#667eea;box-shadow:0 2px 8px #667eea26}.signup-form{display:flex;flex-direction:column;gap:1rem;animation:fadeIn .3s ease}.auth-input{width:100%;padding:.9rem 1.2rem;border:2px solid #e8e8ee;border-radius:12px;font-size:.95rem;transition:all .3s ease;background:#fffc;box-sizing:border-box;font-family:inherit}.auth-input:focus{outline:none;border-color:#667eea;background:#fff;box-shadow:0 0 0 3px #667eea1a;transform:translateY(-1px)}.auth-input:disabled{background:#f5f5f5;cursor:not-allowed;opacity:.7}.auth-input::placeholder{color:#aaa;font-weight:400}.auth-submit-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:.9rem 2rem;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea4d;margin-top:.25rem;font-family:inherit}.auth-submit-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #667eea66;background:linear-gradient(135deg,#5a67d8,#6b46c1)}.auth-submit-btn:active:not(:disabled){transform:translateY(0)}.auth-submit-btn:disabled{background:linear-gradient(135deg,#ccc,#aaa);cursor:not-allowed;transform:none;box-shadow:none}.otp-section{display:flex;flex-direction:column;gap:.5rem;animation:fadeIn .4s ease}.otp-label{font-size:.85rem;color:#666;text-align:center;margin:0}.otp-input{text-align:center;font-size:1.5rem!important;font-weight:700;letter-spacing:.8rem;padding:.8rem 1rem!important;font-family:Courier New,monospace}.otp-countdown{font-size:.82rem;color:#999;text-align:center;margin:0}.otp-countdown span{color:#667eea;font-weight:700}.resend-btn{background:none;border:none;color:#667eea;font-weight:600;font-size:.85rem;cursor:pointer;padding:.3rem;transition:all .2s ease;font-family:inherit}.resend-btn:hover{color:#5a67d8;text-decoration:underline}.auth-message{text-align:center;font-weight:500;font-size:.9rem;margin:.75rem 0 0;padding:.5rem;border-radius:8px;animation:fadeIn .3s ease-in}.auth-divider{display:flex;align-items:center;gap:1rem;margin:1.25rem 0}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:linear-gradient(to right,transparent,#ddd,transparent)}.auth-divider span{font-size:.8rem;color:#aaa;font-weight:500;text-transform:uppercase;letter-spacing:.1em}.google-btn-wrapper{display:flex;justify-content:center;margin-bottom:.5rem}.toggle-auth{margin-top:1rem;text-align:center;padding-top:1rem;border-top:1px solid #eee}.toggle-auth p{color:#888;margin:0;font-size:.9rem}.toggle-auth-btn{color:#667eea;text-decoration:none;font-weight:600;margin-left:.4rem;transition:all .3s ease}.toggle-auth-btn:hover{color:#5a67d8;text-decoration:underline}@media (max-width: 480px){.signup-box{padding:2rem 1.5rem 1.5rem;border-radius:16px}.auth-tab{font-size:.72rem;padding:.5rem .3rem}.signup-header h1{font-size:1.5rem}}.profile-container{min-height:calc(100vh - 70px);background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:center;padding:2rem 1rem;position:relative;overflow-y:auto}.profile-container:before{content:"";position:absolute;inset:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');pointer-events:none}.profile-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:300px;color:#fff;gap:1rem}.loading-spinner{width:40px;height:40px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.profile-box{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:2.5rem;box-shadow:0 20px 40px #00000026;border:1px solid rgba(255,255,255,.2);width:100%;max-width:640px;position:relative;animation:slideUp .6s ease-out;align-self:flex-start}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.profile-header{display:flex;align-items:center;gap:1.5rem;margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid #eee}.profile-avatar-large{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-size:2rem;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 15px #667eea4d}.profile-header-info h1{margin:0;font-size:1.6rem;font-weight:700;color:#333;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.profile-username{margin:.2rem 0 0;color:#888;font-size:.95rem}.profile-bio{margin:.4rem 0 0;color:#666;font-size:.9rem;line-height:1.4}.profile-message{padding:.75rem 1rem;border-radius:10px;font-size:.9rem;font-weight:500;margin-bottom:1.5rem;animation:fadeIn .3s ease}.profile-message.success{background:#4caf501a;color:#2e7d32;border:1px solid rgba(76,175,80,.2)}.profile-message.error{background:#f443361a;color:#c62828;border:1px solid rgba(244,67,54,.2)}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.profile-section{margin-bottom:2rem}.profile-section:last-child{margin-bottom:0}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.profile-section h2{font-size:1.1rem;font-weight:600;color:#333;margin:0 0 .3rem}.section-subtitle{color:#999;font-size:.85rem;margin:0 0 1rem}.edit-btn{background:none;border:1px solid #667eea;color:#667eea;padding:.4rem 1rem;border-radius:20px;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .3s ease}.edit-btn:hover{background:#667eea;color:#fff}.edit-form{display:flex;flex-direction:column;gap:1rem;animation:fadeIn .3s ease}.form-group{display:flex;flex-direction:column;gap:.3rem}.form-group label{font-size:.85rem;font-weight:600;color:#555}.profile-input{padding:.75rem 1rem;border:2px solid #e8e8ee;border-radius:10px;font-size:.95rem;transition:all .3s ease;background:#fffc;font-family:inherit;box-sizing:border-box;width:100%}.profile-input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.profile-input:disabled{background:#f5f5f5;opacity:.7}.profile-input.compact{padding:.6rem .8rem;font-size:.9rem}.profile-input.otp{text-align:center;font-size:1.2rem;font-weight:700;letter-spacing:.5rem;font-family:Courier New,monospace}.profile-textarea{padding:.75rem 1rem;border:2px solid #e8e8ee;border-radius:10px;font-size:.95rem;transition:all .3s ease;background:#fffc;font-family:inherit;resize:vertical;min-height:60px;box-sizing:border-box;width:100%}.profile-textarea:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.char-count{font-size:.78rem;color:#aaa;text-align:right}.edit-actions{display:flex;gap:.75rem;margin-top:.25rem}.save-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:.7rem 1.5rem;border-radius:10px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea4d}.save-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.save-btn:disabled{background:linear-gradient(135deg,#ccc,#aaa);cursor:not-allowed;transform:none;box-shadow:none}.cancel-btn{background:none;border:1px solid #ddd;color:#888;padding:.7rem 1.5rem;border-radius:10px;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .3s ease}.cancel-btn:hover{border-color:#ff6b6b;color:#ff6b6b}.profile-details{display:flex;flex-direction:column;gap:.75rem}.detail-row{display:flex;justify-content:space-between;align-items:center;padding:.6rem 0;border-bottom:1px solid #f5f5f5}.detail-row:last-child{border-bottom:none}.detail-label{font-size:.9rem;color:#888;font-weight:500}.detail-value{font-size:.9rem;color:#333;font-weight:500}.detail-value.badge{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:.2rem .7rem;border-radius:12px;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em}.detail-value.muted{color:#aaa;font-family:Courier New,monospace}.accounts-grid{display:flex;flex-direction:column;gap:1rem}.account-card{border:2px solid #e8e8ee;border-radius:14px;padding:1.2rem;transition:all .3s ease}.account-card.connected{border-color:#4caf504d;background:#4caf5008}.account-card.disconnected{border-color:#e8e8ee;background:#00000003}.account-card:hover{box-shadow:0 4px 12px #0000000f}.account-card-header{display:flex;align-items:center;gap:.75rem;margin-bottom:.75rem}.account-icon{font-size:1.5rem;flex-shrink:0}.account-info{flex:1;min-width:0}.account-info h3{margin:0;font-size:.95rem;font-weight:600;color:#333}.account-info p{margin:.1rem 0 0;font-size:.82rem;color:#888;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.status-badge{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;flex-shrink:0}.status-badge.active{background:#4caf5026;color:#2e7d32}.status-badge.inactive{background:#0000000f;color:#bbb}.link-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:.55rem 1.2rem;border-radius:8px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .3s ease;width:100%}.link-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #667eea4d}.link-btn:disabled{background:linear-gradient(135deg,#ccc,#aaa);cursor:not-allowed}.unlink-btn{background:none;border:1px solid rgba(244,67,54,.3);color:#e53935;padding:.5rem 1rem;border-radius:8px;font-size:.82rem;font-weight:500;cursor:pointer;transition:all .3s ease;width:100%}.unlink-btn:hover:not(:disabled){background:#f4433614;border-color:#e53935}.unlink-btn:disabled{opacity:.5;cursor:not-allowed}.link-form{display:flex;flex-direction:column;gap:.6rem;animation:fadeIn .3s ease}.link-actions{display:flex;gap:.5rem}.link-actions .link-btn{flex:1}.cancel-link-btn{background:none;border:1px solid #ddd;color:#888;padding:.5rem .8rem;border-radius:8px;font-size:.82rem;cursor:pointer;transition:all .2s ease;white-space:nowrap}.cancel-link-btn:hover{border-color:#999;color:#666}.google-link-wrapper{display:flex;justify-content:center;padding-top:.25rem}.account-meta{padding-top:1.5rem;border-top:1px solid #eee}@media (max-width: 640px){.profile-box{padding:1.5rem;border-radius:16px}.profile-header{flex-direction:column;text-align:center}.profile-header-info h1{font-size:1.3rem}.section-header{flex-direction:column;align-items:flex-start;gap:.5rem}.edit-actions{flex-direction:column}.detail-row{flex-direction:column;align-items:flex-start;gap:.2rem}}.private-chat-window{position:fixed;bottom:0;right:20px;width:350px;height:500px;background:#fff;border:1px solid #e0e0e0;border-radius:12px 12px 0 0;box-shadow:0 -4px 20px #00000026;display:flex;flex-direction:column;z-index:1000;animation:slideUp .3s ease-out}@keyframes slideUp{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}.private-chat-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:15px 20px;border-radius:12px 12px 0 0;display:flex;justify-content:space-between;align-items:center;min-height:60px}.recipient-info{display:flex;align-items:center;gap:12px}.recipient-avatar{width:35px;height:35px;border-radius:50%;background:#fff3;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;color:#fff}.private-chat-header h3{margin:0;font-size:16px;font-weight:600}.close-btn{background:#fff3;border:none;color:#fff;width:30px;height:30px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all .2s ease}.close-btn:hover{background:#ffffff4d;transform:scale(1.05)}.private-messages-container{flex:1;overflow-y:auto;padding:15px;background:#f8f9fa;display:flex;flex-direction:column;gap:12px}.private-messages-container::-webkit-scrollbar{width:6px}.private-messages-container::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}.private-messages-container::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:3px}.private-messages-container::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.loading{display:flex;align-items:center;justify-content:center;height:100%;color:#888;font-size:16px}.no-messages{display:flex;align-items:center;justify-content:center;height:100%;color:#888;font-style:italic;text-align:center}.private-message{max-width:80%;margin-bottom:8px;animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.private-message.own-message{align-self:flex-end}.private-message.received-message{align-self:flex-start}.private-message.own-message .message-content{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:18px 18px 4px}.private-message.received-message .message-content{background:#fff;color:#333;border:1px solid #e5e5e5;border-radius:18px 18px 18px 4px}.message-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px;padding:0 4px}.sender-name{font-size:12px;font-weight:600;color:#6b73ff}.timestamp{font-size:11px;color:#999}.message-content{padding:10px 14px;word-wrap:break-word;line-height:1.4;font-size:14px;box-shadow:0 2px 4px #0000001a;transition:all .2s ease}.message-content:hover{transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.private-message-input-container{padding:15px 20px;background:#fff;border-top:1px solid #e5e5e5}.private-message-form{display:flex;gap:10px;align-items:center}.private-message-input{flex:1;padding:12px 16px;border:1px solid #ddd;border-radius:25px;font-size:14px;outline:none;background:#f8f9fa;transition:all .2s ease}.private-message-input:focus{border-color:#667eea;background:#fff;box-shadow:0 0 0 3px #667eea1a}.private-message-input::placeholder{color:#999}.private-send-button{background:linear-gradient(135deg,#667eea,#764ba2);border:none;color:#fff;width:45px;height:45px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all .2s ease;box-shadow:0 2px 8px #667eea4d}.private-send-button:hover:not(:disabled){transform:scale(1.05);box-shadow:0 4px 12px #667eea66}.private-send-button:active:not(:disabled){transform:scale(.95)}.private-send-button:disabled{background:#ccc;cursor:not-allowed;box-shadow:none}@media (max-width: 480px){.private-chat-window{right:10px;width:calc(100vw - 20px);max-width:350px}.private-message{max-width:85%}.private-message-input-container{padding:12px 15px}}.chat-container{display:flex;height:89vh;background-color:#f5f5f5;font-family:Arial,sans-serif}.sidebar{width:250px;background-color:#fff;border-right:1px solid #ddd;display:flex;flex-direction:column}.sidebar-header{padding:15px;border-bottom:1px solid #ddd;display:flex;justify-content:space-between;align-items:center;background-color:#f8f9fa}.sidebar-header h3{margin:0;color:#333;font-size:16px}.logout-btn{background-color:#dc3545;color:#fff;border:none;padding:6px 12px;border-radius:4px;cursor:pointer;font-size:12px}.logout-btn:hover{background-color:#c82333}.users-list{flex:1;padding:10px;overflow-y:auto}.user-item{display:flex;align-items:center;padding:8px;margin-bottom:5px;border-radius:4px;cursor:pointer;transition:background-color .2s}.user-item:hover:not(.current-user){background-color:#f8f9fa}.current-user{background-color:#e3f2fd;cursor:default}.user-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px;margin-right:10px}.user-item span{color:#333;font-size:14px}.you-label{color:#007bff;font-size:12px;margin-left:5px}.unread-count{background-color:#dc3545;color:#fff;border-radius:10px;padding:2px 6px;font-size:11px;margin-left:auto}.main-chat{flex:1;display:flex;flex-direction:column}.chat-header{background-color:#fff;border-bottom:1px solid #ddd;padding:15px 20px}.chat-header h2{margin:0 0 5px;color:#333;font-size:20px}.chat-header p{margin:0;color:#666;font-size:14px}.messages-container{flex:1;padding:15px 20px;overflow-y:auto;background-color:#fafafa}.message{margin-bottom:15px}.system-message{text-align:center;color:#666;font-style:italic;font-size:13px;padding:5px}.chat-message{max-width:70%}.own-message{margin-left:auto}.message-info{display:flex;align-items:center;gap:8px;margin-bottom:3px}.sender{font-weight:700;font-size:13px}.time{font-size:11px;color:#999}.message-text{background-color:#b1b1b1;padding:8px 12px;border-radius:12px;border:1px solid #e0e0e0;color:#333;word-wrap:break-word}.own-message .message-text{background-color:#007bff;color:#fff;border-color:#007bff}.typing-indicator{color:#666;font-style:italic;font-size:13px;margin-left:5px}.input-area{position:relative;background-color:#fff;border-top:1px solid #ddd;padding:15px 20px}.emoji-picker{position:absolute;bottom:100%;left:20px;background-color:#fff;border:1px solid #ddd;border-radius:8px;padding:10px;display:flex;flex-wrap:wrap;gap:5px;margin-bottom:5px;box-shadow:0 2px 10px #0000001a}.emoji-picker button{background:none;border:none;font-size:18px;cursor:pointer;padding:3px;border-radius:3px}.emoji-picker button:hover{background-color:#f0f0f0}.message-form{display:flex;gap:10px;align-items:center}.emoji-btn{background-color:#f8f9fa;border:1px solid #ddd;border-radius:20px;padding:8px 10px;cursor:pointer;font-size:16px}.emoji-btn:hover{background-color:#e9ecef}.message-input{flex:1;padding:10px 15px;border:1px solid #ddd;border-radius:20px;font-size:14px;outline:none}.message-input:focus{border-color:#007bff}.send-btn{background-color:#007bff;color:#fff;border:none;border-radius:20px;padding:10px 20px;cursor:pointer;font-size:14px}.send-btn:hover:not(:disabled){background-color:#0056b3}.send-btn:disabled{background-color:#ccc;cursor:not-allowed}@media (max-width: 768px){.chat-container{flex-direction:column}.sidebar{width:100%;height:150px}.users-list{display:flex;overflow-x:auto;padding:10px}.user-item{min-width:100px;margin-right:10px;margin-bottom:0}.chat-message{max-width:85%}}