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20px}.friends-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.friend-item{background:#f0f2f5;border-radius:12px;padding:16px;text-align:center;transition:all .2s;position:relative}.friend-item:hover{transform:translateY(-2px);background:#e4e6ea}.friend-item:hover .remove-friend-btn{opacity:1;visibility:visible}.remove-friend-btn{position:absolute;top:8px;right:8px;background:#f44336e6;color:#fff;border:none;border-radius:50%;width:28px;height:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:all .2s;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.remove-friend-btn:hover{background:#f44336;transform:scale(1.1)}.friend-avatar{width:60px;height:60px;border-radius:50%;object-fit:cover;margin:0 auto 12px;display:block}.friend-name{font-size:15px;font-weight:600;color:#1c1e21;margin:0 0 4px}.friend-status{font-size:12px;color:#65676b}.friend-status.online{color:#4caf50}.no-friends-message{text-align:center;padding:40px 20px;color:#65676b}.empty-friends-icon{font-size:64px;margin-bottom:16px;opacity:.6}.no-friends-message p{font-size:18px;font-weight:600;color:#1c1e21;margin:0 0 8px}.no-friends-message span{font-size:14px;color:#65676b;font-style:italic}.modal-overlay{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:10000;animation:fadeIn .2s ease}.modal-content{background:#fff;border-radius:12px;box-shadow:0 8px 32px #0000004d;width:90%;max-width:450px;animation:scaleIn .2s ease}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px 0}.modal-header h3{font-size:20px;font-weight:700;color:#1c1e21;margin:0}.modal-close{background:none;border:none;color:#65676b;cursor:pointer;padding:8px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s}.modal-close:hover{background:#f0f2f5;color:#1c1e21}.modal-body{padding:20px 24px}.remove-friend-content{text-align:center}.remove-friend-avatar{width:80px;height:80px;border-radius:50%;object-fit:cover;margin:0 auto 16px;display:block;border:3px solid #e5e5e5}.remove-friend-content p{font-size:16px;color:#1c1e21;margin:0 0 12px;line-height:1.4}.warning-text{font-size:14px;color:#f44336;font-weight:500}.modal-actions{display:flex;justify-content:flex-end;gap:12px;padding:0 24px 24px}.btn-cancel,.btn-remove{padding:10px 20px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;border:none}.btn-cancel{background:#e4e6ea;color:#1c1e21}.btn-cancel:hover{background:#d8dadf}.btn-remove{background:#f44336;color:#fff}.btn-remove:hover{background:#d32f2f}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.error-banner{background:#fee;border:1px solid #fcc;border-radius:8px;padding:12px 16px;margin-bottom:20px;display:flex;justify-content:space-between;align-items:center;color:#c33}.error-banner p{margin:0;font-size:14px}.error-banner button{background:none;border:none;color:#c33;font-size:18px;cursor:pointer;padding:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .2s}.error-banner button:hover{background:#cc33331a}.friends-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.refresh-friends-btn{background:#e4e6ea;border:none;border-radius:8px;padding:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;width:36px;height:36px}.refresh-friends-btn:hover:not(:disabled){background:#d8dadf;transform:scale(1.05)}.refresh-friends-btn:disabled{opacity:.6;cursor:not-allowed}.refresh-friends-btn svg.spinning{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.friends-loading{text-align:center;padding:40px 20px;color:#65676b}.loading-spinner{width:40px;height:40px;border:3px solid #e4e6ea;border-top:3px solid #1877f2;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 16px}.friends-loading p{font-size:16px;margin:0;color:#65676b}@media (max-width: 768px){.profile-cover{height:200px}.profile-header{flex-direction:column;align-items:center;text-align:center;padding:20px 16px;margin-top:-60px}.profile-avatar-section{flex-direction:column;align-items:center;gap:16px}.profile-avatar-large{width:120px;height:120px}.profile-name{font-size:24px;text-align:center}.profile-stats{justify-content:center}.profile-actions{margin-top:16px;justify-content:center}.profile-nav{padding:0 16px;overflow-x:auto}.profile-content{padding:16px}.info-cards,.form-grid{grid-template-columns:1fr}.friends-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}@media (max-width: 480px){.cover-overlay{bottom:12px;right:12px}.edit-cover-btn{padding:8px 12px;font-size:12px}.profile-header{padding:16px 12px}.profile-avatar-large{width:100px;height:100px}.profile-name{font-size:20px}.action-btn{padding:8px 16px;font-size:14px}.profile-content{padding:12px}.modal-content{width:95%;margin:0 10px}.modal-header{padding:16px 20px 0}.modal-body{padding:16px 20px}.modal-actions{padding:0 20px 20px;flex-direction:column}.btn-cancel,.btn-remove{width:100%}.remove-friend-avatar{width:60px;height:60px}.friends-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.remove-friend-btn{opacity:1;visibility:visible}}.navbar-logo{display:flex;align-items:center;gap:.5rem;font-size:1.5rem;font-weight:600;color:#08c}.navbar-logo-img{height:32px;width:32px;object-fit:contain;transition:transform .2s ease}.navbar-logo-img:hover{transform:scale(1.05)}.navbar-logo-text{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;font-weight:600;color:#08c}.enhanced-navbar{background:#fff;border-bottom:1px solid #e5e5e5;padding:12px 20px;display:flex;justify-content:space-between;align-items:center;height:60px;box-shadow:0 1px 3px #0000001a}.navbar-user{display:flex;align-items:center;gap:.75rem}.navbar-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;border:2px solid #e5e5e5}.navbar-username{font-weight:500;color:#333;margin-right:1rem}.navbar-menu{display:flex;align-items:center;gap:.5rem}.navbar-btn{background:none;border:1px solid #e5e5e5;border-radius:6px;padding:6px 12px;font-size:14px;cursor:pointer;transition:all .2s;color:#666}.navbar-btn:hover{background:#f5f5f5;border-color:#ddd}.navbar-btn.logout{background:#ff4757;color:#fff;border-color:#ff4757}.navbar-btn.logout:hover{background:#ff3742}@media (max-width: 768px){.navbar-logo-text{display:none}.navbar-logo-img{height:28px;width:28px}.navbar-username{display:none}}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;width:100%;overflow-x:hidden}html{font-size:16px}@media (min-width: 320px){html{font-size:calc(16px + 6 * ((100vw - 320px) / 680))}}@media (min-width: 1000px){html{font-size:22px}}#root{width:100%!important;max-width:100%!important;overflow-x:hidden}.auth-container{width:100%!important;max-width:100vw!important;padding:clamp(1rem,4vw,2rem)}.chat-layout{width:100%!important;max-width:100vw!important;padding:clamp(.5rem,2vw,1.25rem)}.chat-main{width:100%!important;max-width:100%!important;gap:clamp(.5rem,1vw,1rem)}.sidebar{min-width:clamp(250px,25vw,350px);max-width:min(350px,30vw)}.chat-window{flex:1;min-width:0;width:100%}input,textarea,button{font-size:max(16px,1rem);min-height:44px}.auth-form input,.sidebar-search,.friend-username-input,.chat-input textarea{width:100%;max-width:100%}.chat-bubble{max-width:clamp(250px,70%,600px);font-size:clamp(.9rem,2.5vw,1.1rem);padding:clamp(.5em,2vw,.8em) clamp(.8em,3vw,1.2em)}@media (max-width: 575.98px){.enhanced-navbar{padding:0 .75rem;height:clamp(48px,12vw,56px);flex-wrap:wrap}.navbar-logo{font-size:clamp(1rem,4vw,1.2rem)}.sidebar{width:100vw!important;min-width:100vw!important;max-width:100vw!important;left:-100vw!important}.sidebar.open{left:0!important}.chat-bubble{max-width:90%}.auth-form{margin:.5rem;padding:clamp(1rem,4vw,2rem)}}@media (min-width: 576px) and (max-width: 767.98px){.sidebar{width:320px;min-width:320px}.chat-bubble{max-width:85%}.enhanced-navbar{padding:0 1rem}}@media (min-width: 768px) and (max-width: 991.98px){.sidebar{width:clamp(280px,30vw,320px);position:static!important;left:auto!important;top:auto!important;height:auto!important}.chat-main{flex-direction:row!important;height:auto!important}.mobile-menu-toggle{display:none!important}.chat-bubble{max-width:75%}}@media (min-width: 992px) and (max-width: 1199.98px){.sidebar{width:clamp(300px,25vw,350px)}.chat-bubble{max-width:65%}}@media (min-width: 1200px){.chat-layout{max-width:1400px;margin:0 auto}.sidebar{width:clamp(320px,22vw,380px)}.chat-bubble{max-width:60%}}@media print{.enhanced-navbar,.sidebar,.chat-input,.notification-panel{display:none!important}.chat-history{padding:0!important;background:#fff!important}.chat-bubble{background:#fff!important;color:#000!important;border:1px solid #ccc!important;break-inside:avoid}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media (prefers-contrast: high){.chat-bubble{border:2px solid currentColor}.sidebar-item{border:1px solid currentColor}button{border:2px solid currentColor}}@media (prefers-color-scheme: dark){.chat-window{background:#1a1a1a}.sidebar{background:#2a2a2a}.chat-bubble.received{background:#333;color:#fff}}@media (orientation: landscape) and (max-height: 500px){.enhanced-navbar{height:40px}.chat-header,.chat-input{padding:.5rem 1rem}.chat-main{height:calc(100vh - 40px)}}@media (min-aspect-ratio: 21/9){.chat-layout{max-width:1600px;margin:0 auto}.sidebar{max-width:400px}}@media (hover: none) and (pointer: coarse){.sidebar-item,.navbar-btn,.chat-input button,.notification-bell{min-height:48px;min-width:48px;padding:.75rem}.sidebar-item:hover{background:inherit}.chat-history,.sidebar-list{scrollbar-width:thick}}@supports (container-type: inline-size){.chat-main{container-type:inline-size}@container (max-width: 600px){.sidebar{display:none}}}