*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:#0b001a;color:#e2e8f0;min-height:100vh;-webkit-font-smoothing:antialiased;}
a{text-decoration:none;color:inherit;}
button{font-family:inherit;}
.floating-blurs,.blur-blob{position:fixed;pointer-events:none;z-index:0;}
.floating-blurs{inset:0;overflow:hidden;}
.navbar{position:fixed;top:0;left:0;right:0;z-index:50;padding:12px 24px;border-bottom:1px solid rgba(168,85,247,0.15);backdrop-filter:blur(16px);background:rgba(11,0,26,0.7);}
.navbar-inner{display:flex;align-items:center;gap:12px;}
.navbar-logo{width:36px;height:36px;border-radius:50%;object-fit:cover;filter:drop-shadow(0 0 8px rgba(168,85,247,0.5));}
.navbar-title{font-size:1.25rem;font-weight:700;}
.glow-text{background:linear-gradient(135deg,#c084fc,#f9a8d4,#93c5fd);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.floating-icons{position:fixed;inset:0;pointer-events:none;z-index:1;}
.floating-icon{position:absolute;opacity:0.1;}
.floating-icon img{width:100%;height:100%;object-fit:contain;}
.home-main{position:relative;z-index:2;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2.5rem;padding:5rem 1.5rem 2rem;}
.home-hero-title{font-size:clamp(2.2rem,6vw,4rem);font-weight:800;text-align:center;line-height:1.15;letter-spacing:-0.02em;}
.home-hero-title span{background:linear-gradient(135deg,#c084fc,#f9a8d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.animated-btn{padding:14px 48px;font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,#9333ea,#ec4899);color:#fff;border:none;border-radius:9999px;cursor:pointer;transition:transform 0.2s,box-shadow 0.2s;box-shadow:0 0 30px rgba(147,51,234,0.4);}
.animated-btn:hover{transform:scale(1.05);box-shadow:0 0 50px rgba(147,51,234,0.6);}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem;max-width:960px;width:100%;}
.feature-card{position:relative;background:rgba(255,255,255,0.03);border:1px solid rgba(168,85,247,0.2);border-radius:1.25rem;padding:2rem 1.5rem;display:flex;flex-direction:column;gap:0.75rem;cursor:pointer;transition:transform 0.2s,border-color 0.2s,box-shadow 0.2s;}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(168,85,247,0.5);box-shadow:0 0 30px rgba(168,85,247,0.2);}
.feature-card-img{width:56px;height:56px;}
.feature-card-img img{width:100%;height:100%;object-fit:contain;}
.feature-card h3{font-size:1.1rem;font-weight:700;color:#e9d5ff;}
.feature-card p{font-size:0.875rem;color:rgba(255,255,255,0.5);line-height:1.6;}
.feature-badge{display:inline-block;padding:3px 12px;border-radius:9999px;font-size:0.7rem;font-weight:700;background:linear-gradient(135deg,#9333ea,#ec4899);color:#fff;letter-spacing:0.05em;width:fit-content;}
.chat-header{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid rgba(168,85,247,0.15);background:rgba(11,0,26,0.9);backdrop-filter:blur(12px);flex-shrink:0;z-index:10;}
.chat-back-btn{padding:6px 14px;border-radius:9999px;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);color:rgba(255,255,255,0.6);font-size:0.82rem;white-space:nowrap;transition:all 0.2s;}
.chat-back-btn:hover{background:rgba(168,85,247,0.15);border-color:rgba(168,85,247,0.3);color:#d8b4fe;}
.chat-header-center{flex:1;text-align:center;}
.chat-header-title{font-size:1rem;font-weight:700;}
.chat-header-sub{font-size:0.72rem;color:rgba(255,255,255,0.4);}
.chat-header-avatars{display:flex;gap:4px;}
.mini-avatar{width:28px;height:28px;border-radius:50%;border:1px solid;display:flex;align-items:center;justify-content:center;font-size:0.65rem;font-weight:700;}
.sidebar-label{font-size:0.65rem;font-weight:700;color:rgba(255,255,255,0.3);text-transform:uppercase;letter-spacing:0.1em;padding:0 4px;}
.sidebar-divider{height:1px;background:rgba(255,255,255,0.06);margin:4px 0;}
.persona-btn,.group-chat-btn{display:flex;align-items:center;gap:10px;padding:10px;border-radius:10px;border:1px solid;cursor:pointer;transition:all 0.2s;width:100%;color:#e2e8f0;}
.persona-avatar-sm{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.85rem;flex-shrink:0;}
.group-icon-sm{width:34px;height:34px;border-radius:50%;background:rgba(168,85,247,0.15);display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0;}
.persona-name-sm{font-size:0.82rem;font-weight:600;}
.persona-title-sm{font-size:0.7rem;color:rgba(255,255,255,0.4);}
.persona-tagline-sm{font-size:0.65rem;}
.mobile-tabs{display:flex;gap:6px;padding:8px;overflow-x:auto;border-bottom:1px solid rgba(168,85,247,0.1);flex-shrink:0;}
.mobile-tabs::-webkit-scrollbar{display:none;}
@media(min-width:768px){.mobile-tabs{display:none;}}
.mobile-tab{padding:5px 14px;border-radius:9999px;border:1px solid rgba(255,255,255,0.1);background:transparent;color:rgba(255,255,255,0.5);font-size:0.75rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:all 0.2s;}
.chat-area-header{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid rgba(168,85,247,0.1);background:rgba(11,0,26,0.5);flex-shrink:0;}
.chat-area-name{font-size:0.9rem;font-weight:700;}
.chat-area-sub{font-size:0.72rem;color:rgba(255,255,255,0.4);}
.stacked-avatars{display:flex;}
.stacked-av{width:30px;height:30px;border-radius:50%;border:2px solid;display:flex;align-items:center;justify-content:center;font-size:0.7rem;font-weight:700;margin-left:-8px;}
.stacked-av:first-child{margin-left:0;}
.private-badge{display:flex;align-items:center;gap:5px;padding:4px 10px;border-radius:9999px;border:1px solid;font-size:0.72rem;font-weight:600;}
.priv-dot{width:6px;height:6px;border-radius:50%;}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}
.msg-row{display:flex;gap:10px;margin-bottom:14px;animation:fadeSlideUp 0.28s ease;}
.msg-row.user{flex-direction:row-reverse;}
@keyframes fadeSlideUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.msg-av{width:32px;height:32px;border-radius:50%;border:1px solid;display:flex;align-items:center;justify-content:center;font-size:0.8rem;font-weight:700;flex-shrink:0;margin-top:2px;}
.msg-body{display:flex;flex-direction:column;gap:3px;max-width:72%;}
.msg-body.user{align-items:flex-end;}
.msg-sender{font-size:0.7rem;font-weight:600;padding:0 4px;}
.msg-bubble{padding:10px 14px;border-radius:14px;border:1px solid;font-size:0.875rem;line-height:1.55;word-break:break-word;}
.msg-bubble.user{background:linear-gradient(135deg,rgba(147,51,234,0.35),rgba(236,72,153,0.25));border-color:rgba(168,85,247,0.4);border-radius:14px 14px 2px 14px;}
.msg-bubble.ai{border-radius:14px 14px 14px 2px;}
.typing-indicator{display:flex;gap:4px;align-items:center;height:16px;}
.typing-dot{width:7px;height:7px;border-radius:50%;animation:bounce 1.2s ease-in-out infinite;}
.typing-dot:nth-child(1){animation-delay:0s;}
.typing-dot:nth-child(2){animation-delay:0.2s;}
.typing-dot:nth-child(3){animation-delay:0.4s;}
@keyframes bounce{0%,60%,100%{transform:translateY(0)}30%{transform:translateY(-6px)}}
.empty-chat{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;height:100%;min-height:240px;padding:2rem;text-align:center;}
.empty-stacked{display:flex;justify-content:center;}
.empty-av{width:52px;height:52px;border-radius:50%;border:2px solid;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700;margin-left:-10px;}
.empty-av:first-child{margin-left:0;}
.empty-chat-title{font-size:1.1rem;font-weight:700;color:#e9d5ff;}
.empty-chat-sub{font-size:0.85rem;color:rgba(255,255,255,0.4);max-width:340px;}
.suggest-grid{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;}
.suggest-btn{padding:7px 16px;border-radius:9999px;background:rgba(168,85,247,0.1);border:1px solid rgba(168,85,247,0.25);color:#d8b4fe;font-size:0.78rem;cursor:pointer;transition:all 0.2s;}
.suggest-btn:hover{background:rgba(168,85,247,0.2);}
.chat-input-area{padding:10px 14px;border-top:1px solid rgba(168,85,247,0.15);background:rgba(11,0,26,0.8);flex-shrink:0;}
.chat-input-row{display:flex;gap:8px;align-items:flex-end;}
.chat-textarea{flex:1;background:rgba(255,255,255,0.05);border:1px solid rgba(168,85,247,0.25);border-radius:12px;padding:10px 14px;color:#fff;font-size:0.9rem;font-family:inherit;resize:none;outline:none;max-height:120px;overflow-y:auto;line-height:1.45;transition:border-color 0.2s;}
.chat-textarea:focus{border-color:rgba(168,85,247,0.55);}
.chat-textarea::placeholder{color:rgba(255,255,255,0.3);}
.chat-send-btn{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#a855f7,#7c3aed);color:#fff;border:none;font-size:1rem;cursor:pointer;transition:all 0.2s;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 0 18px rgba(168,85,247,0.5);}
.chat-send-btn:hover:not(:disabled){transform:scale(1.08);}
.chat-send-btn:disabled{opacity:0.4;cursor:not-allowed;}
.chat-input-hint{font-size:0.68rem;color:rgba(255,255,255,0.25);margin-top:5px;text-align:center;}
.page-back-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 18px;border-radius:9999px;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);color:rgba(255,255,255,0.6);font-size:0.82rem;cursor:pointer;margin-bottom:2rem;transition:all 0.2s;}
.page-back-btn:hover{background:rgba(168,85,247,0.15);border-color:rgba(168,85,247,0.3);color:#d8b4fe;}