@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--dark-bg: #0f0f23;--darker-bg: #0a0a16;--glass-bg: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .7);--message-left-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--message-left-tail: #667eea;--message-left-text: #ffffff;--message-right-bg: rgba(255, 255, 255, .1);--message-right-tail: rgba(255, 255, 255, .1);--message-right-text: #ffffff;--input-bg: rgba(0, 0, 0, .3);--btn-text: #ffffff;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 16px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .3);--shadow-glow: 0 0 20px rgba(102, 126, 234, .3);--divider-line: rgba(255, 255, 255, .2)}[data-theme=light]{--dark-bg: #f0f2f5;--darker-bg: #ffffff;--glass-bg: rgba(255, 255, 255, .7);--glass-border: rgba(0, 0, 0, .1);--text-primary: #1a1a1a;--text-secondary: #65676b;--message-left-bg: #e4e6eb;--message-left-tail: #e4e6eb;--message-left-text: #1a1a1a;--message-right-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--message-right-tail: #764ba2;--message-right-text: #ffffff;--input-bg: #ffffff;--btn-text: #ffffff;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .05);--shadow-md: 0 4px 16px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .15);--shadow-glow: 0 0 20px rgba(102, 126, 234, .2);--divider-line: rgba(0, 0, 0, .15)}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{background:var(--dark-bg);background-image:radial-gradient(at 0% 0%,rgba(102,126,234,.2) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(118,75,162,.2) 0px,transparent 50%),radial-gradient(at 50% 50%,rgba(240,147,251,.1) 0px,transparent 50%);min-height:100vh;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text-primary);overflow-x:hidden}#root{width:100%;min-height:100vh}.app{display:flex;flex-direction:column;height:100vh;height:100dvh;width:100%;overflow:hidden}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes messageSlide{0%{opacity:0;transform:translateY(10px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.btn{height:54px;padding:0 32px;background:var(--primary-gradient);border:none;border-radius:27px;color:var(--btn-text);font-size:.95rem;font-weight:600;font-family:inherit;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-md);position:relative;overflow:hidden}.btn-icon{width:54px;padding:0;display:flex;align-items:center;justify-content:center;border-radius:50%;flex-shrink:0}.btn:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(255,255,255,.2) 0%,transparent 100%);opacity:0;transition:opacity .3s ease}.btn:hover:not(:disabled){transform:translateY(-2px) scale(1.02);box-shadow:0 8px 24px #667eea66}.btn:hover:not(:disabled):before{opacity:1}.btn:active:not(:disabled){transform:translateY(0) scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#0a0a15f2;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .4s ease-out}.modal.hidden{display:none}.modal-content{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:24px;padding:40px;max-width:450px;width:90%;box-shadow:var(--shadow-lg);animation:modalSlideIn .5s cubic-bezier(.34,1.56,.64,1)}.modal-header{text-align:center;margin-bottom:32px}.modal-logo{width:60px;height:60px;margin-bottom:16px;filter:drop-shadow(0 4px 12px rgba(102,126,234,.5));animation:float 3s ease-in-out infinite}.modal-header h2{font-size:2rem;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:8px}.modal-header p{color:var(--text-secondary);font-size:.95rem}.input-group{margin-bottom:24px}.input-group label{display:block;margin-bottom:8px;color:var(--text-primary);font-size:.9rem;font-weight:500}.input-group input{width:100%;height:50px;padding:0 18px;background:var(--input-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:12px;color:var(--text-primary);font-size:.95rem;font-family:inherit;outline:none;transition:all .3s cubic-bezier(.4,0,.2,1)}.input-group input::placeholder{color:var(--text-secondary)}.input-group input:focus{border-color:#667eea80;box-shadow:var(--shadow-glow);background:#ffffff14}.join-btn{width:100%;height:54px;margin-top:8px}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-30px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}@media(max-width:768px){.input-group input{font-size:16px}}.logo{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100;animation:slideDown .6s ease-out}.logo-content{display:flex;align-items:center;gap:12px;font-size:clamp(1.2rem,3vw,1.8rem);font-weight:700}.logo h1{background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:inherit;margin:0}.logo img{width:40px;height:40px;filter:drop-shadow(0 2px 8px rgba(102,126,234,.4));animation:float 3s ease-in-out infinite}.header-actions{display:flex;gap:12px}.icon-btn{background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text-primary);width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;transition:all .2s ease}.icon-btn:hover{background:#ffffff1a;transform:scale(1.1)}.icon-btn.danger:hover{background:#ff3b3033;border-color:#ff3b304d}@media(max-width:768px){.logo{padding:12px 16px}.logo-content{font-size:1.2rem}.logo img{width:32px;height:32px}.icon-btn{width:36px;height:36px;font-size:1rem}}@media(max-width:480px){.logo h1{font-size:1.25rem}}.message-wrapper{position:relative;flex:1;display:flex;flex-direction:column;min-height:0;width:100%}.container{flex:1;max-width:900px;margin:24px auto;width:calc(100% - 48px);overflow-y:auto;padding:24px;background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:20px;box-shadow:var(--shadow-lg);animation:fadeIn .8s ease-out;scroll-behavior:smooth;min-height:0;display:flex;flex-direction:column}.container::-webkit-scrollbar{width:12px}.container::-webkit-scrollbar-track{background:#ffffff05;border-radius:10px}.container::-webkit-scrollbar-thumb{background:var(--primary-gradient);border-radius:10px;border:3px solid transparent;background-clip:content-box;transition:all .3s ease}.container::-webkit-scrollbar-thumb:hover{background-color:#764ba2}.scroll-top-btn{position:absolute;left:50%;transform:translate(-50%);width:40px;height:40px;border-radius:50%;background:var(--primary-gradient);border:none;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-md);z-index:100;transition:opacity .2s ease,transform .2s ease;opacity:.5}.scroll-top-btn.up{bottom:80px}.scroll-top-btn.down{bottom:30px}.scroll-top-btn:hover{transform:translate(-50%) translateY(-2px);opacity:1}@keyframes pulse-blue{0%{transform:translate(-50%) scale(1);box-shadow:0 0 #667eeab3}70%{transform:translate(-50%) scale(1.1);box-shadow:0 0 0 10px #667eea00}to{transform:translate(-50%) scale(1);box-shadow:0 0 #667eea00}}.scroll-top-btn.notify{animation:pulse-blue 2s infinite;opacity:1;background:var(--message-left-tail)}.message{max-width:70%;padding:14px 18px;margin:10px 0;border-radius:18px;font-size:.95rem;line-height:1.5;word-wrap:break-word;box-shadow:var(--shadow-md);animation:messageSlide .4s cubic-bezier(.34,1.56,.64,1);position:relative}.message:first-child{margin-top:auto}.left :global(b),.right :global(b){font-weight:600;display:block;margin-bottom:4px;font-size:.85rem;opacity:.9}.center :global(b){font-weight:600;display:inline}.left{align-self:flex-start;background:var(--message-left-bg);color:var(--message-left-text);margin-left:12px;transform-origin:left}.right{align-self:flex-end;background:var(--message-right-bg);color:var(--message-right-text);border:1px solid var(--glass-border);margin-right:12px;transform-origin:right}.center{align-self:center;display:flex;align-items:center;justify-content:center;gap:16px;margin:16px auto;padding:8px 0;width:100%;max-width:90%;text-align:center;color:var(--text-secondary);font-size:.85rem;box-shadow:none;position:relative}.center:before,.center:after{content:"";flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--divider-line),transparent)}.center:before{background:linear-gradient(90deg,transparent,var(--divider-line))}.center:after{background:linear-gradient(90deg,var(--divider-line),transparent)}.timestamp{font-size:.7rem;margin-top:4px;opacity:.7;text-align:right;font-weight:500}@media(max-width:768px){.container{margin:16px;width:calc(100% - 32px);padding:16px;border-radius:16px}.message{max-width:85%;font-size:.9rem;padding:12px 16px}.scroll-top-btn{left:50%;transform:translate(-50%)}.scroll-top-btn.up{bottom:70px}.scroll-top-btn.down{bottom:20px}}@media(max-width:480px){.message{max-width:90%}}#send-container{display:flex;align-items:center;gap:12px;max-width:900px;margin:0 auto 12px;padding:0 20px;animation:slideUp .6s ease-out}#msginp{flex:1;height:54px;padding:0 20px;background:var(--input-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:27px;color:var(--text-primary);font-size:.95rem;font-family:inherit;outline:none;transition:border-color .3s ease,box-shadow .3s ease;box-shadow:var(--shadow-sm)}#msginp::placeholder{color:var(--text-secondary)}#msginp:focus{border-color:#667eea80;box-shadow:var(--shadow-glow)}#msginp:disabled{opacity:.5;cursor:not-allowed}.send{position:relative;width:100%;max-width:900px;margin:0 auto}.emoji-picker-container{position:absolute;bottom:80px;left:20px;z-index:1000;animation:fadeIn .3s ease-out}.emoji-btn{background:var(--input-bg);border:1px solid var(--glass-border);color:var(--text-secondary);width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);flex-shrink:0}.emoji-btn:hover{background:#ffffff1a;color:var(--text-primary);transform:scale(1.05)}.emoji-btn:disabled{opacity:.5;cursor:not-allowed}@media(max-width:768px){#send-container{padding:0 12px;padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right));margin-bottom:max(8px,env(safe-area-inset-bottom));gap:8px}#msginp{height:44px;font-size:16px;min-width:0}#send-container .btn-icon{height:44px;width:44px;font-size:.9rem;flex-shrink:0}.emoji-btn{width:44px;height:44px}}.confirm-modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .3s ease-out}.confirm-modal-content{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);padding:32px;border-radius:24px;width:90%;max-width:400px;box-shadow:var(--shadow-lg);animation:slideUp .4s cubic-bezier(.16,1,.3,1);text-align:center}.confirm-modal-content h2{margin-bottom:12px;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:1.5rem}.confirm-modal-content p{color:var(--text-secondary);margin-bottom:24px;line-height:1.5}.confirm-modal-actions{display:flex;gap:12px;justify-content:center}.confirm-modal-actions button{padding:12px 24px;border-radius:12px;font-weight:600;cursor:pointer;transition:all .2s ease;border:none;font-size:.95rem}.btn-cancel{background:#ffffff1a;color:var(--text-primary)}.btn-cancel:hover{background:#fff3}.btn-confirm{background:linear-gradient(135deg,#ff416c,#ff4b2b);color:#fff;box-shadow:0 4px 12px #ff4b2b4d}.btn-confirm:hover{transform:translateY(-2px);box-shadow:0 6px 16px #ff4b2b66}.alert-modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .3s ease-out}.alert-modal-content{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);padding:32px;border-radius:24px;width:90%;max-width:400px;box-shadow:var(--shadow-lg);animation:slideUp .4s cubic-bezier(.16,1,.3,1);text-align:center}.alert-modal-content h2{margin-bottom:12px;background:linear-gradient(135deg,#ff416c,#ff4b2b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-size:1.5rem}.alert-modal-content p{color:var(--text-secondary);margin-bottom:24px;line-height:1.5}.alert-modal-actions{display:flex;justify-content:center}.alert-modal-actions button{padding:12px 32px;border-radius:12px;font-weight:600;cursor:pointer;transition:all .2s ease;border:none;font-size:.95rem}.btn-ok{background:var(--primary-gradient);color:#fff;box-shadow:0 4px 12px #667eea4d}.btn-ok:hover{transform:translateY(-2px);box-shadow:0 6px 16px #667eea66}