@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--primary: #8E2DE2;--bg-color: #000000;--card-bg: #1A1A1A;--text-primary: #FFFFFF;--text-secondary: #9E9E9E;--bubble-user: #8E2DE2;--bubble-ai: #1E1E1E}html{height:100%;height:100dvh;overflow:hidden}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-primary);height:100%;overflow:hidden}#root{display:flex;flex-direction:column;height:100%;overflow:hidden}.header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:var(--bg-color);border-bottom:1px solid var(--card-bg)}.header-left{display:flex;align-items:center;gap:16px}.studdy-logo-text{font-weight:800;letter-spacing:1.2px;color:var(--primary);font-size:20px}.upgrade-btn{background-color:var(--primary);color:#fff;border:none;border-radius:20px;padding:8px 16px;font-weight:700;font-size:14px;cursor:pointer;transition:opacity .2s}.upgrade-btn:hover{opacity:.8}.chat-container{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center}.studdy-icon{width:80px;height:80px;margin-bottom:24px;fill:var(--primary);color:var(--primary)}.greeting-text{font-size:28px;font-weight:700;margin-bottom:8px}.sub-greeting{font-size:16px;color:var(--text-secondary);margin-bottom:32px}.chat-modes{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;max-width:600px}.mode-chip{background:transparent;border:1px solid var(--text-secondary);color:var(--text-secondary);border-radius:20px;padding:8px 16px;font-size:14px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:6px}.mode-chip.active{background:#8e2de233;border-color:var(--primary);color:var(--primary);font-weight:700}.message-bubble{max-width:85%;margin-bottom:16px;padding:12px 16px;border-radius:20px;line-height:1.5;font-size:16px}.message-user{background-color:var(--bubble-user);color:#fff;align-self:flex-end;border-top-right-radius:4px}.message-ai{background-color:var(--bubble-ai);color:var(--text-primary);align-self:flex-start;border-top-left-radius:4px}.message-ai pre{background:#000;padding:12px;border-radius:8px;overflow-x:auto;margin-top:8px}.message-ai code{color:#ff4081;font-family:monospace}.input-area{padding:16px;background:var(--bg-color);display:flex;flex-direction:column}.input-row{display:flex;align-items:flex-end;gap:12px;margin-bottom:8px}.attach-btn{background:none;border:none;color:var(--primary);cursor:pointer;padding:8px}.input-box{flex:1;background:var(--card-bg);border-radius:24px;border:1px solid #333;padding:14px 20px;color:#fff;font-size:16px;resize:none;font-family:inherit;outline:none;max-height:120px}.send-btn{background:var(--primary);color:#fff;border:none;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;cursor:pointer}.send-btn:disabled{opacity:.5;cursor:not-allowed}.disclaimer{font-size:11px;color:var(--text-secondary);text-align:center}.splash-root{position:fixed;top:0;right:0;bottom:0;left:0;background:#000;display:flex;align-items:center;justify-content:center;z-index:9999;opacity:1;transition:opacity .6s ease}.splash-root.splash-out{opacity:0;pointer-events:none}.splash-content{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;width:100%}.splash-spacer{flex:1}.splash-logo-wrap{opacity:0;transform:scale(.8);animation:splashLogoIn .5s ease-out .2s forwards,splashPulse 2s ease-in-out .9s infinite alternate}.splash-logo{width:100px;height:100px;object-fit:contain}.splash-title{margin-top:20px;font-size:28px;font-weight:800;letter-spacing:1.5px;color:#fff;opacity:0;animation:splashFadeUp .5s ease-out .4s forwards}.splash-subtitle{margin-top:6px;font-size:16px;color:#999;opacity:0;animation:splashFadeUp .5s ease-out .5s forwards}.splash-brand{margin-bottom:8px;opacity:0;animation:splashFadeUp .5s ease-out .7s forwards}.splash-brand-text{font-size:16px;font-weight:700;background:linear-gradient(90deg,#00aeef,#662d8c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:1.5px}@keyframes splashLogoIn{to{opacity:1;transform:scale(1)}}@keyframes splashPulse{0%{transform:scale(1)}to{transform:scale(1.05)}}@keyframes splashFadeUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.auth-container{display:flex;align-items:center;justify-content:center;height:100vh;background-color:var(--bg-color);padding:20px}.auth-card{background-color:var(--card-bg);border-radius:16px;padding:40px;width:100%;max-width:400px;box-shadow:0 10px 25px #00000080}.auth-header{text-align:center;margin-bottom:30px}.auth-logo-img{width:80px;height:80px;object-fit:contain;margin-bottom:14px;animation:float 3s ease-in-out infinite alternate}@keyframes float{0%{transform:translateY(0)}to{transform:translateY(-6px)}}.auth-brand{font-size:26px;font-weight:800;letter-spacing:1.5px;color:#fff;margin-bottom:6px}.auth-header p{color:var(--text-secondary);font-size:14px}.auth-error{background-color:#ff40811a;color:#ff4081;padding:12px;border-radius:8px;margin-bottom:20px;text-align:center;font-size:14px}.auth-form{display:flex;flex-direction:column;gap:16px}.input-group{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:14px;color:var(--text-secondary)}.input-group input{width:100%;padding:14px 14px 14px 44px;border-radius:8px;border:1px solid #333;background-color:var(--bg-color);color:#fff;font-size:16px;outline:none;transition:border-color .2s}.input-group input:focus{border-color:var(--primary)}.auth-submit-btn{background-color:var(--primary);color:#fff;border:none;border-radius:8px;padding:14px;font-size:16px;font-weight:700;cursor:pointer;margin-top:8px;transition:opacity .2s}.auth-submit-btn:hover:not(:disabled){opacity:.9}.auth-submit-btn:disabled{opacity:.5;cursor:not-allowed}.auth-spinner{display:inline-block;width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}.auth-divider{text-align:center;margin:24px 0;position:relative}.auth-divider:before{content:"";position:absolute;left:0;top:50%;width:40%;height:1px;background-color:#333}.auth-divider:after{content:"";position:absolute;right:0;top:50%;width:40%;height:1px;background-color:#333}.auth-divider span{color:var(--text-secondary);font-size:12px;background-color:var(--card-bg);padding:0 10px}.google-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:14px;border-radius:8px;border:1px solid #333;background-color:transparent;color:#fff;font-size:16px;font-weight:500;cursor:pointer;transition:background-color .2s}.google-btn:hover:not(:disabled){background-color:#ffffff0d}.google-btn:disabled{opacity:.5;cursor:not-allowed}.google-icon{width:20px;height:20px}.auth-footer{margin-top:24px;text-align:center;font-size:14px;color:var(--text-secondary)}.text-btn{background:none;border:none;color:var(--primary);font-weight:700;cursor:pointer;font-size:14px;padding:0}.text-btn:hover{text-decoration:underline}.details-root{min-height:100vh;background:#000;display:flex;align-items:center;justify-content:center;padding:24px}.details-card{width:100%;max-width:420px;display:flex;flex-direction:column;align-items:center;gap:0}.details-avatar{position:relative;width:100px;height:100px;border-radius:50%;background:#8e2de2;display:flex;align-items:center;justify-content:center;cursor:pointer;margin-bottom:8px}.details-avatar-text{font-size:42px;font-weight:700;color:#fff}.details-avatar-badge{position:absolute;bottom:0;right:0;background:#1a1a1a;border:2px solid #8E2DE2;border-radius:50%;padding:5px;display:flex;color:#8e2de2}.details-hint{font-size:12px;color:#666;margin-bottom:28px}.details-title{font-size:26px;font-weight:800;color:#fff;margin-bottom:8px;text-align:center}.details-subtitle{font-size:15px;color:#888;text-align:center;margin-bottom:28px}.details-form{width:100%;display:flex;flex-direction:column;gap:12px}.details-input{width:100%;background:#1a1a1a;border:1px solid #333;border-radius:14px;padding:16px 20px;color:#fff;font-size:16px;font-family:inherit;outline:none;box-sizing:border-box}.details-input:focus{border-color:#8e2de2}.details-error{color:#ff5252;font-size:13px;margin:0}.details-btn{width:100%;background:#8e2de2;color:#fff;border:none;border-radius:14px;padding:16px;font-size:16px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:opacity .2s;font-family:inherit}.details-btn:disabled{opacity:.6;cursor:not-allowed}.details-spinner{width:20px;height:20px;border:2px 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#6a1b9a47}.explore-v-spacer{flex:1}.explore-v-img-wrap{width:100%;height:110px;overflow:hidden;flex-shrink:0}.explore-v-img{width:100%;height:110px;object-fit:cover;display:block}.explore-v-content{padding:10px;display:flex;flex-direction:column;gap:0}.explore-v-title{font-size:13px;font-weight:700;color:#fff;line-height:1.2;margin:6px 0 8px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical}@keyframes explore-shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.explore-skeleton{border-radius:16px;background:linear-gradient(90deg,#2c1654b3 25%,#6a1b9a40,#2c1654b3 75%);background-size:800px 100%;animation:explore-shimmer 1.6s ease-in-out infinite}.explore-skeleton--h{height:190px}.explore-skeleton--v{flex:1;height:200px;border-radius:16px;background:linear-gradient(90deg,#2c1654b3 25%,#6a1b9a40,#2c1654b3 75%);background-size:800px 100%;animation:explore-shimmer 1.6s ease-in-out infinite}.explore-error{display:flex;flex-direction:column;align-items:center;padding:24px 0 16px;gap:8px}.explore-error-icon{font-size:28px;opacity:.6}.explore-error-text{font-size:13px;color:#888}.explore-retry-btn{background:none;border:1px solid var(--explore-purple-light);color:var(--explore-purple-light);border-radius:20px;padding:6px 20px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .18s,color .18s}.explore-retry-btn:hover{background:#9c27b026}@media (max-width: 420px){.explore-h-card{height:160px}.explore-h-title{font-size:14px}}*{box-sizing:border-box;margin:0;padding:0}:root{--primary: #8E2DE2;--bg: #000;--card: #111;--border: #222;--text: #fff;--text-muted: #888;--bubble-user: #8E2DE2;--bubble-ai: #1A1A1A;--radius: 20px}html,body{height:100%;height:100dvh;overflow:hidden;font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}#root{height:100%;height:100dvh;display:flex;flex-direction:column;overflow:hidden}.chat-root{display:flex;flex-direction:column;height:100%;height:100dvh;overflow:hidden;background:var(--bg);position:relative}.chat-appbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border);background:var(--bg);flex-shrink:0;z-index:10;min-height:56px}.chat-appbar-left{display:flex;align-items:center;gap:12px}.chat-appbar-right{display:flex;align-items:center;gap:4px}.chat-logo{display:flex;align-items:center;gap:8px}.chat-logo span{font-size:18px;font-weight:800;color:var(--primary);letter-spacing:1.2px}.icon-btn{background:none;border:none;color:var(--text);cursor:pointer;padding:8px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background .15s}.icon-btn:hover{background:#111}.connection-banner{background-color:#ff5252;color:#fff;padding:8px 16px;display:flex;align-items:center;justify-content:center;gap:10px;font-size:14px;font-weight:600;animation:slideDown .3s ease-out}.connection-icon{font-size:16px}@keyframes slideDown{0%{transform:translateY(-100%)}to{transform:translateY(0)}}.icon-btn:disabled{color:#555;cursor:not-allowed}.upgrade-chip{display:flex;align-items:center;gap:6px;background:var(--primary);color:#fff;border:none;border-radius:20px;padding:6px 14px;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;transition:opacity .2s}.upgrade-chip:hover{opacity:.85}.menu-wrap{position:relative}.popup-menu{position:absolute;right:0;top:calc(100% + 8px);background:#1a1a1a;border:1px solid #333;border-radius:14px;min-width:180px;overflow:hidden;z-index:200;box-shadow:0 8px 32px #0006}.popup-menu button{display:block;width:100%;padding:12px 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alternate}.empty-greeting{font-size:26px;font-weight:800;margin-bottom:8px}.empty-sub{font-size:16px;color:var(--text-muted);margin-bottom:28px}.explore-section-wrap{width:100%;max-width:640px;margin-top:24px;text-align:left}.explore-section-heading{font-size:16px;font-weight:700;color:var(--text);margin-bottom:12px;padding:0 2px}.mode-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;max-width:480px}.mode-chip{display:flex;align-items:center;gap:6px;background:transparent;border:1px solid #333;color:#888;border-radius:20px;padding:8px 16px;font-size:14px;cursor:pointer;transition:all .2s;font-family:inherit}.mode-chip:hover{border-color:var(--primary);color:var(--primary)}.mode-chip.active{background:#8e2de226;border-color:var(--primary);color:var(--primary);font-weight:700}.ai-avatar{width:28px;height:28px;object-fit:contain;border-radius:50%;flex-shrink:0;margin-bottom:2px}.bubble{max-width:min(85%,680px);padding:12px 16px;border-radius:20px;font-size:15px;line-height:1.6;word-break:break-word}.bubble-user{background:var(--bubble-user);color:#fff;border-top-right-radius:4px}.bubble-ai{background:var(--bubble-ai);color:var(--text);border-top-left-radius:4px}.bubble-ai pre{background:#0a0a0a;padding:12px;border-radius:8px;overflow-x:auto;margin-top:8px}.bubble-ai code{color:#ff79c6;font-family:monospace;font-size:13px}.bubble-ai p:last-child{margin-bottom:0}.bubble-ai ul,.bubble-ai ol{padding-left:20px}.bubble-ai h1,.bubble-ai h2,.bubble-ai h3{margin:10px 0 6px}.chat-input-area{flex-shrink:0;padding:12px 16px;padding-bottom:max(12px,env(safe-area-inset-bottom,12px));border-top:1px solid var(--border);background:var(--bg);position:relative;z-index:5}.att-name{display:block;font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.att-ready{display:block;font-size:11px;color:var(--primary)}.attach-btn{color:var(--primary)!important}.chat-textarea{flex:1;background:#1a1a1a;border:1px solid #333;border-radius:24px;padding:14px 20px;color:var(--text);font-size:16px;resize:none;font-family:inherit;outline:none;max-height:120px;min-height:50px;line-height:1.5;transition:border-color .2s}.chat-textarea:focus{border-color:var(--primary)}.send-btn{width:48px;height:48px;background:var(--primary);color:#fff;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:opacity .2s}.send-btn:not(.disabled):hover{opacity:.85}.mini-spinner{width:20px;height:20px;border:2px solid rgba(142,45,226,.3);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}.disclaimer{font-size:11px;color:#666;text-align:center;margin-top:8px;display:block;line-height:1.4}@media (max-width: 600px){.chat-appbar{padding:10px 12px}.chat-messages{padding:12px}.chat-input-area{padding:10px 12px;padding-bottom:max(10px,env(safe-area-inset-bottom,10px))}.bubble{font-size:14px}.upgrade-chip{display:none}.empty-greeting{font-size:22px}}.settings-root{min-height:100vh;background:#000;display:flex;flex-direction:column}.settings-header{display:flex;align-items:center;gap:12px;padding:16px;border-bottom:1px solid #1a1a1a}.settings-header h1{font-size:18px;font-weight:700;color:#fff;margin:0}.settings-profile-card{display:flex;align-items:center;gap:16px;margin:20px 16px;padding:20px;background:#111;border-radius:18px;border:1px solid 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