@import "https://fonts.googleapis.com/css2?family=Fraunces:wght@400;600;700&family=DM+Sans:wght@300;400;500;600&display=swap";:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}#root{box-sizing:border-box;flex-direction:column;width:100%;height:100vh;margin:0;display:flex}body{margin:0}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}.sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border-main);z-index:20;flex-direction:column;width:260px;min-width:260px;height:100vh;transition:transform .28s cubic-bezier(.4,0,.2,1);display:flex}.sidebar-header{border-bottom:1px solid var(--border-main);padding:18px 18px 14px}.brand{align-items:center;gap:10px;display:flex}.brand-icon{background:var(--brand-primary);width:34px;height:34px;color:var(--bg-surface);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.brand-name{color:var(--brand-primary);letter-spacing:-.2px;font-family:Fraunces,serif;font-size:15px;font-weight:700}.new-chat-btn{background:var(--brand-primary);color:var(--bg-surface);cursor:pointer;border:none;border-radius:8px;align-items:center;gap:7px;width:calc(100% - 28px);margin:12px 14px 6px;padding:9px 14px;font-family:DM Sans,sans-serif;font-size:13px;font-weight:500;transition:background .18s;display:flex}.new-chat-btn:hover{background:var(--brand-hover)}.dark-theme .new-chat-btn{color:#b8b8b8;background:#313131}.dark-theme .new-chat-btn:hover{color:#d4d4d4;background:#3a3a3a}.chat-section-label{letter-spacing:1.5px;text-transform:uppercase;color:var(--text-muted);padding:10px 18px 5px;font-family:DM Sans,sans-serif;font-size:10px;font-weight:500}.chat-list{flex:1;padding:0 8px 10px;overflow-y:auto}.chat-list::-webkit-scrollbar{width:3px}.chat-list::-webkit-scrollbar-thumb{background:var(--border-main);border-radius:4px}.no-chats{color:var(--text-muted);padding:12px 14px;font-family:DM Sans,sans-serif;font-size:12px}.chat-item{cursor:pointer;color:var(--text-secondary);border-radius:8px;align-items:center;gap:8px;padding:8px 10px;font-family:DM Sans,sans-serif;font-size:13px;transition:background .14s,color .14s;display:flex;position:relative}.chat-item:hover{background:var(--hover-bg);color:var(--brand-primary)}.chat-item.active{background:var(--active-bg);color:var(--brand-primary);font-weight:500}.chat-icon{opacity:.5;flex-shrink:0}.chat-item.active .chat-icon{opacity:1}.chat-title{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.delete-btn{opacity:0;color:var(--danger);cursor:pointer;background:0 0;border:none;border-radius:4px;flex-shrink:0;align-items:center;padding:3px;transition:opacity .14s;display:flex}.chat-item:hover .delete-btn{opacity:1}.sidebar-footer{border-top:1px solid var(--border-main);flex-direction:column;gap:0;padding:8px 10px;display:flex}.sidebar-user-btn{cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;align-items:center;gap:10px;width:100%;padding:8px;font-family:DM Sans,sans-serif;transition:background .15s;display:flex}.sidebar-user-btn:hover{background:var(--hover-bg)}.sidebar-avatar{background:var(--brand-primary);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:flex;overflow:hidden}.sidebar-avatar img{object-fit:cover;border-radius:50%;width:100%;height:100%}.sidebar-avatar span{font-size:13px;font-weight:600}.sidebar-user-info{flex-direction:column;flex:1;min-width:0;display:flex}.sidebar-user-name{color:var(--text-main);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.sidebar-user-email{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:11px;overflow:hidden}.sidebar-chevron{color:var(--text-muted);flex-shrink:0;transition:transform .2s}.sidebar-chevron.rotated{transform:rotate(180deg)}.settings-panel{padding:6px 4px 4px;animation:.2s both settingsSlide}@keyframes settingsSlide{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.settings-section{padding:8px 8px 10px}.settings-label{letter-spacing:1.5px;text-transform:uppercase;color:var(--text-muted);margin-bottom:8px;font-size:10px;font-weight:500}.settings-info-row{color:var(--text-secondary);align-items:center;gap:8px;padding:5px 0;font-size:12.5px;display:flex}.settings-info-row svg{color:var(--text-muted);flex-shrink:0}.settings-info-row span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.settings-logout-btn{border:1px solid var(--danger);width:100%;color:var(--danger);cursor:pointer;background:0 0;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:9px 12px;font-family:DM Sans,sans-serif;font-size:13px;font-weight:500;transition:all .15s;display:flex}.settings-logout-btn:hover{background:var(--danger);color:#fff}.sidebar-overlay{z-index:19;background:#00000059;display:none;position:fixed;inset:0}@media (width<=768px){.sidebar{position:fixed;top:0;bottom:0;left:0;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block}}.msg-row{width:100%;max-width:820px;margin:0 auto;padding:10px 24px;animation:.3s both fadeUp}@keyframes fadeUp{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}.user-row{justify-content:flex-end;display:flex}.user-bubble{background:var(--brand-primary);color:var(--bg-surface);border-radius:18px 18px 4px;max-width:72%;padding:14px 18px;font-family:DM Sans,sans-serif;font-size:14.5px;line-height:1.65;box-shadow:0 2px 12px #1a2e4a33}.attachment-indicator{opacity:.75;align-items:center;gap:4px;margin-bottom:4px;display:flex}.ai-row{align-items:flex-start;gap:14px;display:flex}.ai-avatar{background:var(--brand-primary);width:36px;height:36px;color:var(--bg-surface);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;margin-top:2px;display:flex}.ai-content{flex:1;min-width:0}.ai-label{letter-spacing:2px;text-transform:uppercase;color:var(--text-muted);margin-bottom:8px;font-family:DM Sans,sans-serif;font-size:10.5px;font-weight:600}.ai-card{background:var(--bg-surface);border:1px solid var(--border-main);border-radius:12px;padding:18px 20px;box-shadow:0 1px 6px #0000000d}.ai-text{color:var(--text-body);font-family:DM Sans,sans-serif;font-size:14.5px;line-height:1.75}.md-p{margin:0 0 10px}.md-p:last-child{margin-bottom:0}.md-bold{color:var(--brand-primary);font-weight:700}.md-ul{background:var(--bg-main);border-left:3px solid var(--brand-primary);border-radius:8px;flex-direction:column;gap:8px;margin:10px 0 0 2px;padding:14px 16px;list-style:none;display:flex}.md-li{color:var(--text-secondary);align-items:flex-start;gap:8px;font-size:13.5px;line-height:1.6;display:flex}.md-li:before{content:"•";color:var(--brand-primary);flex-shrink:0;margin-top:1px;font-weight:700}.sources-row{border-top:1px solid var(--hover-bg);flex-wrap:wrap;gap:6px;margin-top:14px;padding-top:12px;display:flex}.source-tag{background:var(--tag-bg);color:var(--brand-primary);border:1px solid var(--tag-border);border-radius:20px;align-items:center;gap:5px;padding:3px 10px;font-family:DM Sans,sans-serif;font-size:11px;font-weight:500;display:inline-flex}.ai-actions{align-items:center;gap:8px;margin-top:10px;display:flex}.action-btn{border:1px solid var(--border-main);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:7px;align-items:center;gap:6px;padding:6px 13px;font-family:DM Sans,sans-serif;font-size:12px;font-weight:500;transition:border-color .15s,color .15s,background .15s;display:inline-flex}.action-btn:hover{border-color:var(--brand-primary);color:var(--brand-primary);background:var(--hover-bg)}.action-btn:disabled{opacity:.5;cursor:default}.accent-btn{border-color:var(--tag-border);color:var(--brand-primary);background:var(--tag-bg)}.accent-btn:hover{background:var(--hover-bg);border-color:var(--brand-primary);color:var(--brand-primary)}.input-area{background:var(--bg-surface);border-top:1px solid var(--border-main);flex-shrink:0;padding:14px 24px 18px}.input-wrap{background:var(--bg-main);border:1.5px solid var(--border-main);border-radius:14px;align-items:flex-end;gap:8px;max-width:820px;margin:0 auto;padding:8px 10px;transition:border-color .2s;display:flex}.input-wrap:focus-within{border-color:var(--brand-primary);background:var(--bg-surface);box-shadow:0 0 0 3px #1a2e4a12}.attach-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;flex-shrink:0;align-self:flex-end;align-items:center;margin-bottom:1px;padding:6px;transition:color .15s,background .15s;display:flex}.attach-btn:hover:not(:disabled){color:var(--brand-primary);background:var(--hover-bg)}.attach-btn:disabled{opacity:.4;cursor:default}.chat-textarea{color:var(--brand-primary);resize:none;background:0 0;border:none;outline:none;flex:1;min-height:26px;max-height:160px;padding:4px 0;font-family:DM Sans,sans-serif;font-size:14px;line-height:1.6;overflow-y:auto}.chat-textarea::placeholder{color:var(--text-muted)}.chat-textarea::-webkit-scrollbar{width:3px}.chat-textarea::-webkit-scrollbar-thumb{background:var(--border-main);border-radius:4px}.send-btn{background:var(--brand-primary);width:36px;height:36px;color:var(--bg-surface);cursor:pointer;border:none;border-radius:9px;flex-shrink:0;justify-content:center;align-self:flex-end;align-items:center;transition:background .18s,opacity .18s;display:flex}.send-btn:hover:not(:disabled){background:var(--brand-hover)}.send-btn:disabled{opacity:.45;cursor:default}.file-chips{flex-wrap:wrap;gap:6px;max-width:820px;margin:0 auto 8px;display:flex}.file-chip{background:var(--bg-main);border:1px solid var(--border-main);color:var(--text-muted);border-radius:8px;align-items:center;gap:6px;padding:5px 10px;font-family:DM Sans,sans-serif;font-size:12px;transition:border-color .2s;display:flex}.file-chip.staged{border-color:var(--brand-primary);background:#1a2e4a0d}.file-chip-name{color:var(--brand-primary);text-overflow:ellipsis;white-space:nowrap;max-width:160px;font-weight:600;overflow:hidden}.file-chip-size{color:var(--text-muted);font-size:11px}.file-chip-status{font-size:11px;font-style:italic}.file-chip-remove{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;align-items:center;padding:2px;transition:color .15s,background .15s;display:flex}.file-chip-remove:hover{color:#ef4444;background:#ef44441a}.input-hint{text-align:center;max-width:820px;color:var(--text-muted);margin:8px auto 0;font-family:DM Sans,sans-serif;font-size:11px}.typing-row{align-items:flex-start;gap:14px;width:100%;max-width:820px;margin:0 auto;padding:10px 24px;display:flex}.typing-avatar{background:var(--brand-primary);width:36px;height:36px;color:var(--bg-surface);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.typing-card{background:var(--bg-surface);border:1px solid var(--border-main);border-radius:12px;padding:14px 18px;box-shadow:0 1px 6px #0000000d}.typing-label{letter-spacing:2px;color:var(--text-muted);margin-bottom:10px;font-family:DM Sans,sans-serif;font-size:10.5px;font-weight:600}.typing-dots{align-items:center;gap:5px;display:flex}.typing-dots span{background:var(--brand-primary);opacity:.4;border-radius:50%;width:7px;height:7px;animation:.9s ease-in-out infinite bounce}.typing-dots span:nth-child(2){animation-delay:.15s}.typing-dots span:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,80%,to{opacity:.4;transform:translateY(0)}40%{opacity:1;transform:translateY(-6px)}}.welcome{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:60px 24px 40px;animation:.4s both fadeUp;display:flex}.welcome-icon{background:var(--brand-primary);width:64px;height:64px;color:var(--bg-surface);border-radius:16px;justify-content:center;align-items:center;margin-bottom:20px;display:flex;box-shadow:0 8px 30px #1a2e4a2e}.welcome-title{color:var(--brand-primary);letter-spacing:-.5px;max-width:560px;margin-bottom:8px;font-family:Fraunces,serif;font-size:28px;font-weight:700}.welcome-sub{color:var(--text-muted);max-width:380px;margin-bottom:32px;font-family:DM Sans,sans-serif;font-size:13px;line-height:1.55}.suggestion-grid{grid-template-columns:1fr 1fr;gap:12px;width:100%;max-width:580px;display:grid}.suggestion-card{background:var(--bg-surface);border:1.5px solid var(--border-main);cursor:pointer;text-align:left;border-radius:12px;align-items:flex-start;gap:12px;padding:14px 16px;font-family:DM Sans,sans-serif;transition:border-color .18s,box-shadow .18s,background .18s;display:flex}.suggestion-card:hover{border-color:var(--brand-primary);background:var(--hover-bg);box-shadow:0 3px 14px #1a2e4a1a}.sug-icon{flex-shrink:0;margin-top:1px;font-size:22px}.sug-title{color:var(--brand-primary);margin-bottom:3px;font-size:13px;font-weight:600}.sug-prompt{color:var(--text-muted);font-size:12px;line-height:1.5}@media (width<=520px){.welcome{justify-content:flex-start;padding:20px 16px 10px}.welcome-icon{width:48px;height:48px;margin-bottom:12px}.welcome-icon svg{width:24px;height:24px}.welcome-title{margin-bottom:6px;font-size:18px}.welcome-sub{margin-bottom:18px;font-size:12px;line-height:1.4}.suggestion-grid{grid-template-columns:1fr 1fr;gap:8px}.suggestion-card{text-align:center;flex-direction:column;align-items:center;gap:6px;padding:10px}.sug-title{margin-bottom:0;font-size:12px}.sug-prompt{display:none}}.fir-overlay{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:100;background:#00000073;justify-content:center;align-items:center;padding:16px;animation:.2s overlayIn;display:flex;position:fixed;inset:0}@keyframes overlayIn{0%{opacity:0}to{opacity:1}}.fir-modal{background:var(--bg-surface);border:1px solid var(--border-main);border-radius:16px;flex-direction:column;width:100%;max-width:780px;max-height:90vh;animation:.25s cubic-bezier(.34,1.56,.64,1) modalIn;display:flex;overflow:hidden;box-shadow:0 24px 64px #0000002e}@keyframes modalIn{0%{opacity:0;transform:scale(.94)translateY(12px)}to{opacity:1;transform:scale(1)translateY(0)}}.fir-header{border-bottom:1px solid var(--border-main);background:var(--bg-surface);flex-shrink:0;justify-content:space-between;align-items:center;padding:18px 22px 16px;display:flex}.fir-header-left{align-items:center;gap:12px;display:flex}.fir-header-icon{background:var(--brand-primary);color:#fff;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;display:flex}.fir-title{color:var(--text-main);margin:0;font-family:Fraunces,serif;font-size:17px;font-weight:700}.fir-subtitle{color:var(--text-muted);margin:2px 0 0;font-family:DM Sans,sans-serif;font-size:12px}.req-star{color:#e05252;font-weight:700}.fir-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:7px;padding:6px 8px;font-size:18px;line-height:1;transition:background .15s,color .15s}.fir-close:hover:not(:disabled){background:var(--hover-bg);color:var(--text-main)}.fir-body{flex-direction:column;flex:1;gap:14px;padding:20px 22px;display:flex;overflow-y:auto}.fir-body::-webkit-scrollbar{width:4px}.fir-body::-webkit-scrollbar-thumb{background:var(--scroll-thumb);border-radius:4px}.fir-section-label{letter-spacing:1.5px;text-transform:uppercase;color:var(--text-muted);margin-bottom:8px;font-family:DM Sans,sans-serif;font-size:11px;font-weight:600}.fir-section{flex-direction:column;display:flex}.fir-select{background:var(--bg-surface);border:1.5px solid var(--border-main);color:var(--text-main);cursor:pointer;border-radius:8px;outline:none;width:220px;padding:9px 12px;font-family:DM Sans,sans-serif;font-size:13.5px;transition:border-color .18s}.fir-select:focus{border-color:var(--brand-primary)}.fir-grid{grid-template-columns:1fr 1fr;gap:0 20px;display:grid}.fir-col{flex-direction:column;gap:0;display:flex}.fir-field{flex-direction:column;margin-bottom:12px;display:flex}.fir-field label{color:var(--text-secondary);margin-bottom:5px;font-family:DM Sans,sans-serif;font-size:12.5px;font-weight:600}.fir-field input,.fir-field textarea,.fir-field select{background:var(--bg-surface);border:1.5px solid var(--border-main);color:var(--text-main);resize:vertical;border-radius:8px;outline:none;padding:9px 12px;font-family:DM Sans,sans-serif;font-size:13.5px;line-height:1.5;transition:border-color .18s,box-shadow .18s,background .18s}.fir-field input::placeholder,.fir-field textarea::placeholder{color:var(--text-muted)}.fir-field input:focus,.fir-field textarea:focus{border-color:var(--brand-primary);box-shadow:0 0 0 3px #1a2e4a14}.has-error input,.has-error textarea{border-color:#e05252!important;box-shadow:0 0 0 3px #e052521a!important}.field-error{color:#e05252;margin-top:4px;font-family:DM Sans,sans-serif;font-size:11.5px}.fir-footer{border-top:1px solid var(--border-main);flex-shrink:0;justify-content:space-between;align-items:center;margin-top:4px;padding-top:16px;display:flex}.fir-footer-right{align-items:center;gap:10px;display:flex}.fir-btn-reset{border:1px solid var(--border-main);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:8px;padding:9px 16px;font-family:DM Sans,sans-serif;font-size:13px;transition:all .15s}.fir-btn-reset:hover:not(:disabled){border-color:var(--text-muted);color:var(--text-main)}.fir-btn-cancel{border:1px solid var(--border-main);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:8px;padding:9px 18px;font-family:DM Sans,sans-serif;font-size:13px;transition:all .15s}.fir-btn-cancel:hover:not(:disabled){background:var(--hover-bg)}.fir-btn-submit{background:var(--brand-primary);color:#fff;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:7px;padding:9px 22px;font-family:DM Sans,sans-serif;font-size:13px;font-weight:600;transition:background .18s,opacity .18s;display:flex}.fir-btn-submit:hover:not(:disabled){background:var(--brand-hover)}.fir-btn-submit:disabled{opacity:.6;cursor:default}.fir-spinner{border:2px solid #fff6;border-top-color:#fff;border-radius:50%;width:14px;height:14px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.dark-theme .fir-field input,.dark-theme .fir-field textarea,.dark-theme .fir-select{background:var(--hover-bg)}.dark-theme .fir-field input:focus,.dark-theme .fir-field textarea:focus{border-color:#8a9dc0;box-shadow:0 0 0 3px #8a9dc01f}@media (width<=600px){.fir-grid{grid-template-columns:1fr}.fir-footer{flex-direction:column;gap:10px}.fir-footer-right{width:100%}.fir-btn-submit,.fir-btn-cancel{flex:1;justify-content:center}}.fir-options-panel{background:var(--bg-main);border:1.5px solid var(--border-main);border-radius:14px;max-width:620px;margin:0 auto 12px;font-family:DM Sans,sans-serif;animation:.2s fir-panel-in;overflow:hidden;box-shadow:0 4px 24px #00000014}@keyframes fir-panel-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fir-options-header{justify-content:space-between;align-items:center;padding:14px 18px 10px;display:flex}.fir-options-question{color:var(--text-main);font-size:14px;font-weight:600}.fir-options-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;align-items:center;padding:4px;transition:color .15s,background .15s;display:flex}.fir-options-close:hover{color:var(--text-main);background:var(--hover-bg)}.fir-options-list{flex-direction:column;display:flex}.fir-option-item{border:none;border-top:1px solid var(--border-main);cursor:pointer;text-align:left;color:var(--text-main);background:0 0;align-items:center;gap:12px;width:100%;padding:12px 18px;font-family:DM Sans,sans-serif;font-size:14px;transition:background .15s;display:flex}.fir-option-item:hover{background:var(--hover-bg)}.fir-option-number{background:var(--hover-bg);width:28px;height:28px;color:var(--brand-primary);border:1.5px solid var(--border-main);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;font-size:12px;font-weight:700;transition:background .15s,border-color .15s;display:flex}.fir-option-item:hover .fir-option-number{background:var(--brand-primary);color:#fff;border-color:var(--brand-primary)}.fir-option-label{font-weight:500}.fir-option-custom{cursor:default;opacity:.5}.fir-option-custom:hover{background:0 0}.fir-option-edit-icon{background:0 0;border-color:#0000}.fir-option-placeholder{color:var(--text-muted);font-weight:400}.fir-options-footer{border-top:1px solid var(--border-main);justify-content:flex-end;padding:8px 18px 12px;display:flex}.fir-option-skip{background:var(--hover-bg);border:1px solid var(--border-main);color:var(--text-muted);cursor:pointer;border-radius:8px;padding:6px 18px;font-family:DM Sans,sans-serif;font-size:13px;font-weight:600;transition:color .15s,background .15s}.fir-option-skip:hover{color:var(--text-main);background:var(--bg-surface)}@media (width<=500px){.fir-options-panel{margin:0 8px 8px}}:root{--bg-main:#e8eaef;--bg-surface:#f0f1f5;--bg-sidebar:#e2e4ea;--brand-primary:#1a2e4a;--brand-hover:#243d60;--text-main:#1a2e4a;--text-body:#2d3748;--text-secondary:#4a5568;--text-muted:#6b7585;--border-main:#d2d5dc;--icon-hover-bg:#dcdfe6;--scroll-thumb:#c5c9d2;--hover-bg:#dfe2e9;--active-bg:#d5dae5;--danger:#e05252;--tag-bg:#dee4f0;--tag-border:#c2cde0;--user-bubble-bg:#1a2e4a;--user-bubble-text:#fff}.dark-theme{--bg-main:#121212;--bg-surface:#1a1a1a;--bg-sidebar:#0e0e0e;--brand-primary:#c0c6d0;--brand-hover:#dce0e8;--text-main:#c8ccd4;--text-body:#b0b4bc;--text-secondary:#8a8e98;--text-muted:#585c64;--border-main:#252525;--icon-hover-bg:#222;--scroll-thumb:#333;--hover-bg:#1e1e1e;--active-bg:#252525;--danger:#ff4d4f;--tag-bg:#1c1c1c;--tag-border:#2a2a2a;--user-bubble-bg:#252525;--user-bubble-text:#d4d4d4}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{background:var(--bg-main);height:100%;transition:background .3s}body{color:var(--text-main);-webkit-font-smoothing:antialiased;font-family:DM Sans,sans-serif;transition:color .3s}.app{background:var(--bg-main);height:100vh;color:var(--text-main);transition:background .3s;display:flex;overflow:hidden}.main{background:var(--bg-main);flex-direction:column;flex:1;min-width:0;transition:background .3s;display:flex;overflow:hidden}.topbar{background:var(--bg-surface);border-bottom:1px solid var(--border-main);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;height:56px;padding:0 20px;transition:background .3s,border-color .3s;display:flex}.topbar-left{align-items:center;gap:12px;min-width:0;display:flex}.hamburger{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:7px;align-items:center;padding:6px;transition:background .15s,color .15s;display:none}.hamburger:hover{background:var(--icon-hover-bg);color:var(--text-main)}.topbar-title{color:var(--text-main);white-space:nowrap;text-overflow:ellipsis;max-width:400px;font-size:14px;font-weight:500;transition:color .3s;overflow:hidden}.topbar-brand{align-items:center;gap:9px;display:flex}.topbar-brand-icon{background:var(--brand-primary);width:30px;height:30px;color:var(--bg-surface);border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.topbar-brand-name{color:var(--brand-primary);letter-spacing:-.2px;font-family:Fraunces,serif;font-size:15px;font-weight:700}.action-buttons{align-items:center;gap:8px;display:flex}.icon-button{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:8px;transition:background .3s,color .3s,transform .2s;display:flex}.icon-button:hover{background:var(--icon-hover-bg);color:var(--text-main)}.icon-button.active{color:var(--danger)}.signin-btn{background:var(--brand-primary);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-radius:8px;padding:7px 20px;font-family:DM Sans,sans-serif;font-size:13px;font-weight:600;transition:background .18s,transform .15s}.signin-btn:hover{background:var(--brand-hover);transform:translateY(-1px)}.chat-area{scroll-behavior:smooth;flex-direction:column;flex:1;display:flex;position:relative;overflow-y:auto}.chat-area::-webkit-scrollbar{width:5px}.chat-area::-webkit-scrollbar-thumb{background:var(--scroll-thumb);border-radius:4px}.messages-wrap{flex-direction:column;padding:20px 0 8px;display:flex}.temporary-chat-screen{text-align:center;background:var(--bg-main);flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;padding:20px;animation:.4s ease-out fadeIn;display:flex;position:absolute;top:0;left:0}.temporary-chat-screen h2{color:var(--text-main);margin-bottom:12px;font-size:28px;font-weight:600}.temporary-chat-screen p{color:var(--text-muted);max-width:400px;font-size:14px;line-height:1.5}.fir-input-prompt{background:var(--bg-main);border:1.5px solid var(--border-main);border-radius:12px;justify-content:space-between;align-items:center;gap:12px;max-width:820px;margin:0 auto 8px;padding:10px 16px;animation:.2s fir-panel-in;display:flex;box-shadow:0 2px 12px #0000000f}.fir-input-prompt-text{color:var(--text-main);align-items:center;gap:10px;font-family:DM Sans,sans-serif;font-size:13px;font-weight:600;display:flex}.fir-input-prompt-skip{background:var(--hover-bg);border:1px solid var(--border-main);color:var(--text-muted);cursor:pointer;border-radius:6px;padding:3px 12px;font-family:DM Sans,sans-serif;font-size:12px;font-weight:600;transition:color .15s,background .15s}.fir-input-prompt-skip:hover{color:var(--text-main);background:var(--bg-surface)}.fir-input-prompt-cancel{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;flex-shrink:0;align-items:center;padding:4px;transition:color .15s,background .15s;display:flex}.fir-input-prompt-cancel:hover{color:var(--text-main);background:var(--hover-bg)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (width<=768px){.hamburger{display:flex}}.auth-page{background:var(--bg-main);min-height:100vh;font-family:DM Sans,sans-serif;display:flex}.auth-left{background:var(--brand-primary);flex:1;justify-content:center;align-items:center;padding:60px 48px;display:flex;position:relative;overflow:hidden}.auth-left:before{content:"";background:#ffffff08;border-radius:50%;width:400px;height:400px;position:absolute;top:-120px;right:-120px}.auth-left:after{content:"";background:#ffffff05;border-radius:50%;width:300px;height:300px;position:absolute;bottom:-80px;left:-80px}.auth-left-content{z-index:1;max-width:440px;position:relative}.auth-brand{align-items:center;gap:12px;margin-bottom:40px;display:flex}.auth-brand-icon{color:#fff;background:#ffffff1f;border-radius:10px;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.auth-brand-name{color:#fff;letter-spacing:-.3px;font-family:Fraunces,serif;font-size:20px;font-weight:700}.auth-left-title{color:#fff;letter-spacing:-.5px;margin-bottom:14px;font-family:DM Sans,sans-serif;font-size:36px;font-weight:700;line-height:1.2}.auth-left-sub{color:#fff9;margin-bottom:40px;font-size:15px;line-height:1.6}.auth-features{flex-direction:column;gap:20px;display:flex}.auth-feature{align-items:flex-start;gap:14px;display:flex}.auth-feature-icon{color:#fff;background:#ffffff1a;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;display:flex}.auth-feature h3{color:#fff;margin:0 0 3px;font-size:14px;font-weight:600}.auth-feature p{color:#ffffff80;margin:0;font-size:12.5px;line-height:1.4}.auth-right{background:var(--bg-main);flex-direction:column;flex:1;justify-content:center;align-items:center;max-width:520px;padding:40px 32px;display:flex}.auth-card{width:100%;max-width:400px;animation:.4s both authFadeIn}@keyframes authFadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.auth-card-header{margin-bottom:28px}.auth-card-header h2{color:var(--text-main);letter-spacing:-.3px;margin:0 0 6px;font-family:Fraunces,serif;font-size:26px;font-weight:700}.auth-card-header p{color:var(--text-muted);margin:0;font-size:13.5px}.auth-google-btn{background:var(--bg-surface);border:1.5px solid var(--border-main);width:100%;color:var(--text-main);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;gap:10px;padding:11px 16px;font-family:DM Sans,sans-serif;font-size:13.5px;font-weight:500;transition:all .18s;display:flex}.auth-google-btn:hover:not(:disabled){border-color:var(--text-muted);background:var(--hover-bg);box-shadow:0 2px 8px #0000000f}.auth-google-btn:disabled{opacity:.6;cursor:default}.auth-divider{align-items:center;margin:22px 0;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:var(--border-main);flex:1;height:1px}.auth-divider span{color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;padding:0 14px;font-size:11.5px}.auth-form{flex-direction:column;gap:16px;display:flex}.auth-field label{color:var(--text-secondary);margin-bottom:6px;font-size:12.5px;font-weight:600;display:block}.auth-input-wrap{background:var(--bg-surface);border:1.5px solid var(--border-main);border-radius:9px;align-items:center;padding:0 12px;transition:border-color .18s,box-shadow .18s;display:flex}.auth-input-wrap:focus-within{border-color:var(--brand-primary);box-shadow:0 0 0 3px #1a2e4a14}.auth-input-icon{color:var(--text-muted);flex-shrink:0;margin-right:10px}.auth-input-wrap input{color:var(--text-main);background:0 0;border:none;outline:none;flex:1;padding:10px 0;font-family:DM Sans,sans-serif;font-size:13.5px;line-height:1.5}.auth-input-wrap input::placeholder{color:var(--text-muted)}.auth-eye-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;align-items:center;padding:4px;transition:color .15s;display:flex}.auth-eye-btn:hover{color:var(--text-main)}.auth-error{color:#e05252;background:#e0525214;border:1px solid #e0525233;border-radius:8px;padding:10px 14px;font-size:12.5px;line-height:1.4}.auth-submit-btn{background:var(--brand-primary);color:#fff;cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;width:100%;margin-top:4px;padding:12px 16px;font-family:DM Sans,sans-serif;font-size:14px;font-weight:600;transition:background .18s,opacity .18s;display:flex}.auth-submit-btn:hover:not(:disabled){background:var(--brand-hover)}.auth-submit-btn:disabled{opacity:.6;cursor:default}.auth-spinner{border:2px solid #fff6;border-top-color:#fff;border-radius:50%;width:14px;height:14px;animation:.7s linear infinite authSpin;display:inline-block}@keyframes authSpin{to{transform:rotate(360deg)}}.auth-switch{text-align:center;color:var(--text-muted);margin-top:24px;font-size:13px}.auth-switch button{color:var(--brand-primary);cursor:pointer;text-underline-offset:2px;background:0 0;border:none;font-family:DM Sans,sans-serif;font-size:13px;font-weight:600;text-decoration:underline}.auth-switch button:hover{color:var(--brand-hover)}.auth-footer{color:var(--text-muted);letter-spacing:.5px;margin-top:32px;font-size:11.5px}.dark-theme .auth-left{background:#111}.dark-theme .auth-input-wrap:focus-within{border-color:#8a9dc0;box-shadow:0 0 0 3px #8a9dc01f}.dark-theme .auth-input-wrap input{background:0 0}@media (width<=900px){.auth-page{flex-direction:column}.auth-left{min-height:auto;padding:32px 24px}.auth-left-title{font-size:24px}.auth-features{display:none}.auth-right{max-width:100%;padding:32px 24px}}@media (width<=480px){.auth-left{padding:24px 20px}.auth-left-title{font-size:20px}.auth-left-sub{margin-bottom:0;font-size:13px}.auth-right{padding:24px 20px}.auth-card-header h2{font-size:22px}}