*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg-deep: #0a1628;--bg-card: #121f38;--bg-input: #182744;--accent: #e63946;--accent-hover: #ff4d5a;--gold: #f4c542;--snow: #e8f0fe;--text: #e8f0fe;--text-muted: #8da4c7;--santa-bubble: #1e3a5f;--user-bubble: #e63946;--border: rgba(232, 240, 254, .08);--shadow: 0 8px 32px rgba(0, 0, 0, .3);--radius: 16px;--radius-sm: 10px}html,body{height:100%}body{font-family:Nunito,Comfortaa,sans-serif;background:var(--bg-deep);color:var(--text);overflow:hidden}#root{height:100%}.snowflakes{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;overflow:hidden}.snowflake{position:absolute;top:-20px;color:#fff9;font-size:1rem;animation:snowfall linear infinite;will-change:transform}@keyframes snowfall{0%{transform:translateY(-20px) rotate(0);opacity:1}to{transform:translateY(105vh) 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.2s}.nav-btn:hover,.nav-btn.active{color:var(--text);border-color:var(--gold);background:#f4c54214}.chat-page{display:flex;flex-direction:column;flex:1;min-height:0}.messages{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px;scroll-behavior:smooth}.messages::-webkit-scrollbar{width:6px}.messages::-webkit-scrollbar-track{background:transparent}.messages::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}.message{display:flex;gap:12px;max-width:75%;animation:fadeSlideIn .3s ease}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.message.santa{align-self:flex-start}.message.user{align-self:flex-end;flex-direction:row-reverse}.message-avatar{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}.message.santa .message-avatar{background:var(--santa-bubble)}.message.user .message-avatar{background:var(--user-bubble)}.message-content{padding:12px 18px;border-radius:var(--radius);font-size:.95rem;line-height:1.6;position:relative}.message.santa .message-content{background:var(--santa-bubble);border-bottom-left-radius:4px}.message.user .message-content{background:var(--user-bubble);border-bottom-right-radius:4px}.typing-dots{display:flex;gap:5px;padding:4px 0}.typing-dots span{width:8px;height:8px;background:var(--text-muted);border-radius:50%;animation:bounce 1.4s ease-in-out infinite}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-8px)}}.input-area{padding:16px 24px;background:var(--bg-card);border-top:1px solid var(--border);flex-shrink:0}.input-wrapper{display:flex;gap:12px;max-width:800px;margin:0 auto}.upload-btn{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);padding:14px 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h3{font-family:Comfortaa,sans-serif;font-size:.95rem;font-weight:700;color:var(--gold);margin-bottom:10px;letter-spacing:.2px}.info-section p{font-size:.88rem;color:var(--text-muted);line-height:1.75}.info-section ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:7px}.info-section li{font-size:.88rem;color:var(--text-muted);line-height:1.6;padding-left:18px;position:relative}.info-section li:before{content:"·";position:absolute;left:4px;color:var(--gold);font-weight:700}.info-section strong{color:var(--text);font-weight:700}.info-meta{font-size:.75rem;color:var(--text-muted);opacity:.6;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border)}@media(max-width:640px){.header{padding:12px 16px}.header-title{font-size:1rem}.messages{padding:16px}.message{max-width:90%}.input-area{padding:12px 16px}.plans-page{padding:24px 16px}.welcome h2{font-size:1.4rem}.welcome-santa{font-size:3.5rem}.plan-price{font-size:1.6rem}.info-modal-header,.info-modal-body,.info-modal-footer{padding-left:18px;padding-right:18px}}.auth-page{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;z-index:10;padding:24px 16px}.auth-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:40px 36px;width:min(420px,100%);box-shadow:var(--shadow);animation:scaleIn .25s ease}.auth-logo{font-size:3rem;text-align:center;line-height:1;margin-bottom:6px}.auth-site-title{font-family:Comfortaa,sans-serif;font-size:1.5rem;text-align:center;margin-bottom:28px;background:linear-gradient(90deg,var(--snow),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.auth-tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:28px}.auth-tab{flex:1;background:none;border:none;color:var(--text-muted);font-family:inherit;font-size:.9rem;padding:10px 0;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .2s}.auth-tab.active{color:var(--snow);border-bottom-color:var(--gold)}.auth-tab:hover:not(.active){color:var(--snow)}.auth-form{display:flex;flex-direction:column;gap:18px}.auth-field{display:flex;flex-direction:column;gap:6px}.auth-label{font-size:.8rem;color:var(--text-muted);letter-spacing:.02em}.auth-input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-family:inherit;font-size:.95rem;padding:12px 16px;outline:none;transition:border-color .2s}.auth-input:focus{border-color:#f4c54266}.auth-input::placeholder{color:var(--text-muted);opacity:.5}.auth-error{font-size:.82rem;color:var(--accent-hover);text-align:center;padding:8px 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.2s}.header-logout-btn:hover{border-color:var(--accent);color:var(--accent-hover)}.auth-modal-overlay{align-items:center;justify-content:center}.auth-page--modal{position:static;padding:0;background:none}.auth-page--modal .auth-card{position:relative}.auth-close-btn{position:absolute;top:14px;right:16px;background:none;border:none;color:var(--text-muted);font-size:1rem;cursor:pointer;line-height:1;transition:color .2s}.auth-close-btn:hover{color:var(--snow)}