.search-layout{display:flex;height:100vh;height:100dvh;overflow:hidden}.sidebar{width:60px;background:var(--sidebar-bg);border-right:1px solid var(--sidebar-border);display:flex;flex-direction:column;align-items:center;padding:var(--space-5) 0;gap:var(--space-3);transition:width var(--transition-base);flex-shrink:0;z-index:100}.sidebar-brand{display:flex;align-items:center;gap:var(--space-3);padding:0 var(--space-2);height:40px;width:100%;justify-content:center;overflow:hidden;transition:all var(--transition-base);margin-bottom:var(--space-2);flex-shrink:0}.sidebar-brand .logo-icon{width:32px;height:32px;flex-shrink:0;transition:transform var(--transition-base)}.sidebar.expanded .sidebar-brand{justify-content:flex-start;padding:0 var(--space-4)}.sidebar-brand .brand-name{font-size:var(--font-size-lg);font-weight:700;color:var(--primary);background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.sidebar-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;color:var(--gray-500);transition:all var(--transition-fast)}.sidebar-btn:hover{background:#0d9b6a1a;color:var(--primary)}.sidebar-btn.active{background:#0d9b6a1f;color:var(--primary)}.sidebar-btn svg{width:22px;height:22px}.sidebar-divider{width:24px;height:1px;background:var(--sidebar-border);margin:var(--space-1) 0}.sidebar-chats{flex:1;display:none!important;flex-direction:column;gap:var(--space-2);overflow-y:auto;padding:0 var(--space-2);width:100%}.sidebar.expanded .sidebar-chats{display:flex!important}.sidebar-chat-item{position:relative;display:flex;align-items:center;justify-content:space-between;width:100%;height:40px;border-radius:var(--radius-md);color:var(--gray-700);transition:all var(--transition-fast);cursor:pointer;padding:0 var(--space-2)}.sidebar-chat-item:hover{background:#0d9b6a0f}.sidebar-chat-item-clickable{display:flex;align-items:center;gap:var(--space-3);flex:1;min-width:0;height:100%}.sidebar-chat-item-clickable svg{width:20px!important;height:20px!important;stroke:var(--primary)!important;color:var(--primary)!important;flex-shrink:0!important}.sidebar-chat-item-clickable .sidebar-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:var(--font-size-sm);font-weight:500}.chat-options-container{position:relative;display:flex;align-items:center;justify-content:center}.chat-options-btn{width:28px;height:28px;border:none;background:transparent;color:var(--gray-400);border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);opacity:0}.sidebar-chat-item:hover .chat-options-btn,.chat-options-container.open .chat-options-btn{opacity:1}.chat-options-btn:hover{background:#0d9b6a1a;color:var(--primary)}.chat-options-btn svg{width:16px!important;height:16px!important;stroke:currentColor!important;color:currentColor!important}.chat-options-menu{position:absolute;top:30px;right:0;background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:var(--space-1);min-width:100px;opacity:0;visibility:hidden;transform:translateY(-4px);transition:all var(--transition-fast);z-index:150}.chat-options-container.open .chat-options-menu{opacity:1;visibility:visible;transform:translateY(0)}.chat-option-delete-btn{display:flex;align-items:center;gap:var(--space-2);width:100%;padding:.5rem .75rem;border:none;background:transparent;color:#dc2626;font-size:var(--font-size-xs);font-weight:600;border-radius:var(--radius-sm);cursor:pointer;text-align:left;transition:background var(--transition-fast)}.chat-option-delete-btn:hover{background:#fef2f2}.chat-option-delete-btn svg{width:14px!important;height:14px!important;stroke:#dc2626!important;color:#dc2626!important}[data-theme=dark] .sidebar-chat-item{color:var(--gray-300)}[data-theme=dark] .sidebar-chat-item:hover{background:#0d9b6a1a}[data-theme=dark] .chat-options-menu{background:#172033f2;border-color:var(--gray-200);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}[data-theme=dark] .chat-option-delete-btn:hover{background:#dc262626}.sidebar-bottom{margin-top:auto;display:flex;flex-direction:column;align-items:center;gap:var(--space-2)}.aurora-canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0;opacity:.5;transition:opacity .4s ease}.aurora-canvas.hidden{opacity:0;pointer-events:none}[data-theme=dark] .aurora-canvas{opacity:.3}[data-theme=dark] .aurora-canvas.hidden{opacity:0}.main-content>*:not(.aurora-canvas){position:relative;z-index:1}.toggle-switch{position:relative;display:inline-block;width:44px;height:24px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background-color:var(--gray-300, #d1d5db);transition:.3s;border-radius:24px}.toggle-slider:before{content:"";position:absolute;height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;transition:.3s;border-radius:50%}.toggle-switch input:checked+.toggle-slider{background-color:var(--accent-blue, #3b82f6)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(20px)}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;position:relative;background:var(--white)}.top-bar{display:flex;align-items:center;justify-content:flex-start;gap:var(--space-3);padding:14px 20px;position:absolute;top:0;right:0;left:0;z-index:100!important}.mobile-sidebar-toggle{display:none!important;align-items:center;justify-content:center;width:40px;height:40px;padding:0;margin-right:4px;background:var(--gray-100);border:1px solid var(--gray-200);border-radius:var(--radius-md);cursor:pointer;flex-shrink:0;transition:all var(--transition-fast);color:var(--gray-700)}.mobile-sidebar-toggle svg{width:20px;height:20px}.mobile-sidebar-toggle:hover{background:var(--gray-200)}.custom-dropdown{position:relative;display:inline-block}.dropdown-trigger{display:inline-flex;align-items:center;gap:8px;padding:6px 14px 6px 8px;background:#18191e;border:1px solid #33353e;border-radius:12px;cursor:pointer;box-shadow:0 2px 8px #0006;transition:all .2s cubic-bezier(.16,1,.3,1);font-size:14px;font-weight:600;color:#f1f5f9;outline:none;-webkit-user-select:none;user-select:none}.dropdown-trigger:hover{background:#20222a;border-color:#ffffff40}.custom-dropdown.open .dropdown-trigger{background:#22242d;border-color:#10b981;box-shadow:0 0 0 3px #10b98138,0 4px 14px #00000080}.dropdown-trigger-icon{width:26px;height:26px;border-radius:7px;display:flex;align-items:center;justify-content:center;flex-shrink:0;background:#fff;border:1px solid rgba(255,255,255,.2);box-shadow:0 1px 2px #00000040;overflow:hidden;padding:3px}.dropdown-trigger-icon svg,.dropdown-trigger-icon img,.dropdown-trigger-icon .model-brand-img{width:16px;height:16px;display:block;object-fit:contain;flex-shrink:0}.dropdown-trigger-name{white-space:nowrap;max-width:180px;overflow:hidden;text-overflow:ellipsis}.dropdown-trigger .globe-icon{width:14px;height:14px;color:#94a3b8;opacity:.8;flex-shrink:0;margin-left:2px}.dropdown-trigger .chevron-icon{width:14px;height:14px;color:#94a3b8;transition:transform .2s ease;flex-shrink:0}.custom-dropdown.open .dropdown-trigger .chevron-icon{transform:rotate(180deg);color:#10b981}.dropdown-menu{position:absolute;top:calc(100% + 8px);left:0;right:auto;background:#18191e;border:1px solid #2e3038;border-radius:16px;box-shadow:0 25px 60px -10px #000000d9,0 0 0 1px #ffffff0d;padding:16px;width:380px;max-width:calc(100vw - 32px);opacity:0;visibility:hidden;transform:translateY(-8px) scale(.98);transform-origin:top left;transition:all .2s cubic-bezier(.16,1,.3,1);z-index:9999;display:flex;flex-direction:column;gap:12px;box-sizing:border-box}.custom-dropdown.open .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0) scale(1)}.model-modal-header{display:flex;flex-direction:column;gap:2px;padding:0 4px}.model-modal-title{font-size:16px;font-weight:700;color:#fff;letter-spacing:-.01em}.model-modal-subtitle{font-size:13px;color:#94a3b8}.model-search-wrapper{position:relative;display:flex;align-items:center;width:100%}.model-search-icon{position:absolute;left:12px;width:16px;height:16px;color:#64748b;pointer-events:none}.model-search-input{width:100%;padding:10px 36px 10px 38px;background:#1e1f26;border:1px solid rgba(255,255,255,.08);border-radius:12px;font-size:14px;color:#fff;outline:none;transition:all .2s ease}.model-search-input::placeholder{color:#64748b}.model-search-input:focus{border-color:#10b981;background:#23252e;box-shadow:0 0 0 3px #10b98138}.model-search-clear{position:absolute;right:10px;background:none;border:none;color:#64748b;cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .15s ease}.model-search-clear:hover{color:#fff;background:#ffffff1a}.model-search-clear svg{width:14px;height:14px}.model-filter-pills{display:flex;align-items:center;gap:6px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}.model-filter-pills::-webkit-scrollbar{display:none}.model-filter-pill{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;background:#20222a;border:1px solid rgba(255,255,255,.06);border-radius:10px;font-size:12px;font-weight:600;color:#94a3b8;cursor:pointer;white-space:nowrap;transition:all .15s ease}.model-filter-pill:hover{background:#282a35;color:#f1f5f9}.model-filter-pill.active{background:#10b981;border-color:#10b981;color:#fff;box-shadow:0 2px 10px #10b98159}.model-filter-pill .pill-badge{font-size:11px;opacity:.75}.model-list-scrollable{max-height:380px;overflow-y:auto;display:flex;flex-direction:column;gap:4px;margin-right:-4px;padding-right:4px;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.15) transparent}.model-list-scrollable::-webkit-scrollbar{width:6px}.model-list-scrollable::-webkit-scrollbar-thumb{background:#ffffff26;border-radius:999px}.model-group-header{font-size:11px;font-weight:800;letter-spacing:.08em;color:#94a3b8;padding:12px 6px 4px;text-transform:uppercase}.model-group-header:first-child{padding-top:4px}.model-item-card{display:flex;align-items:center;gap:12px;padding:8px 10px;border-radius:12px;background:transparent;border:1px solid transparent;cursor:pointer;transition:all .15s cubic-bezier(.16,1,.3,1);text-align:left;width:100%;position:relative;outline:none}.model-item-card:hover{background:#ffffff0d}.model-item-card.active{background:#10b9811f;border-left:3px solid #10b981;border-top-left-radius:4px;border-bottom-left-radius:4px}.model-item-card.locked{cursor:not-allowed;opacity:.55;filter:grayscale(.2)}.model-item-card.locked:hover{background:#ef44440f}.model-item-icon{width:36px;height:36px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0;background:#fff;border:1px solid rgba(255,255,255,.2);box-shadow:0 1px 3px #00000040,0 0 0 1px #0000000d;overflow:hidden;transition:all .18s cubic-bezier(.16,1,.3,1);padding:5px}.model-item-card:hover .model-item-icon{background:#fff;transform:scale(1.05);box-shadow:0 2px 8px #00000059}.model-item-card.active .model-item-icon{background:#fff;box-shadow:0 0 0 2px #10b981,0 2px 8px #10b98159}.model-item-icon svg,.model-item-icon img,.model-brand-img{width:22px;height:22px;display:block;object-fit:contain;flex-shrink:0}.model-item-info{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}.model-item-title{font-size:14px;font-weight:600;color:#f1f5f9;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.model-item-card.active .model-item-title{color:#fff}.model-item-slug{font-size:12px;color:#94a3b8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.model-item-meta{display:flex;align-items:center;gap:8px;flex-shrink:0}.model-pill-badge{font-size:10px;font-weight:700;letter-spacing:.04em;padding:3px 8px;border-radius:6px;text-transform:uppercase}.badge-basic,.badge-free{background:#272a34;color:#94a3b8}.badge-pro,.badge-premium{background:#3b82f633;color:#60a5fa;border:1px solid rgba(59,130,246,.3)}.badge-pro-plus,.badge-enterprise{background:#10b9812e;color:#34d399;border:1px solid rgba(16,185,129,.3)}.model-item-check{width:20px;height:20px;border-radius:50%;background:#10b981;color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}.model-item-check svg{width:12px;height:12px}.model-item-lock{width:16px;height:16px;color:#ef4444;flex-shrink:0}.model-empty-state{padding:28px 16px;text-align:center;color:#94a3b8;font-size:13px}.tier-badge-inline{vertical-align:middle;margin-left:6px;transform:translateY(-1px)}.tier-badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:999px;font-size:10px;font-weight:700;letter-spacing:.4px;text-transform:uppercase;flex-shrink:0}.tier-badge-free{background:#6b728026;color:#6b7280}.tier-badge-pro,.tier-badge-premium{background:#0d9b6a2e;color:#0d9b6a}.tier-badge-plus{background:#3b82f62e;color:#3b82f6}.tier-badge-enterprise{background:#f59e0b26;color:#d97706}.tier-badge-ultra{background:linear-gradient(135deg,#a855f738,#ec489938);color:#a855f7}[data-theme=dark] .tier-badge-free{background:#6b728040;color:#9ca3af}[data-theme=dark] .tier-badge-pro{background:#0d9b6a47;color:#6ee7b7}[data-theme=dark] .tier-badge-plus{background:#3b82f647;color:#93c5fd}[data-theme=dark] .tier-badge-ultra{background:linear-gradient(135deg,#a855f759,#ec489959);color:#d8b4fe}[data-theme=dark] .dropdown-trigger{background:var(--white);border-color:var(--gray-200);color:var(--gray-700)}[data-theme=dark] .dropdown-trigger:hover{background:var(--gray-100);border-color:var(--gray-300)}[data-theme=dark] .dropdown-trigger svg.chevron-icon{color:var(--gray-500)}[data-theme=dark] .dropdown-trigger svg.model-icon{color:var(--gray-500)}[data-theme=dark] .dropdown-menu{background:#172033d9;border-color:var(--gray-200)}[data-theme=dark] .dropdown-item{color:var(--gray-700)}[data-theme=dark] .dropdown-item:hover{background:#0d9b6a1f;color:var(--primary)}[data-theme=dark] .dropdown-item.active{background:var(--primary-light);color:var(--primary)}[dir=rtl] .dropdown-menu{right:auto;left:0}[dir=rtl] .dropdown-item{text-align:right;flex-direction:row-reverse}[dir=rtl] .dropdown-trigger svg.chevron-icon{margin-left:0;margin-right:var(--space-1)}.main-content{flex:1;display:flex;flex-direction:column;height:100vh;position:relative;overflow:hidden;transition:all .4s cubic-bezier(.16,1,.3,1)}.main-content.is-welcome{justify-content:center;align-items:center}.main-content.is-welcome .chat-pane{display:flex;flex-direction:column;justify-content:center;align-items:center;height:100%;width:100%;position:relative}.main-content.is-welcome .top-bar{position:absolute;top:0;left:0;right:0;z-index:50;padding:14px 20px;display:flex;align-items:center;justify-content:flex-start;gap:var(--space-3)}.main-content.is-welcome .chat-area{flex:0 0 auto;overflow:visible;padding:0 var(--space-6);display:flex;flex-direction:column;align-items:center;justify-content:center;max-width:820px;width:100%;margin:0 auto}.main-content.is-welcome .welcome-screen{flex:0 0 auto;padding:0;max-width:680px;width:100%;display:flex;flex-direction:column;align-items:center;text-align:center;animation:fadeIn .5s cubic-bezier(.16,1,.3,1) forwards}.welcome-logo{position:relative;display:flex;align-items:center;justify-content:center;margin-bottom:.85rem}.welcome-logo:before{content:"";position:absolute;width:100px;height:100px;border-radius:50%;background:radial-gradient(circle,rgba(13,155,106,.4) 0%,rgba(56,189,248,.15) 55%,transparent 75%);filter:blur(20px);z-index:0;pointer-events:none;animation:pulseGlow 4s ease-in-out infinite alternate}.welcome-logo-img{position:relative;z-index:1;width:64px;height:64px;filter:drop-shadow(0 8px 16px rgba(13,155,106,.28));transition:transform .3s ease}.welcome-logo-img:hover{transform:scale(1.06) rotate(5deg)}@keyframes pulseGlow{0%{transform:scale(.92);opacity:.7}to{transform:scale(1.1);opacity:1}}.welcome-title{font-family:var(--font-family);font-size:clamp(1.85rem,4.2vw,2.5rem);font-weight:800;color:var(--gray-900);line-height:1.22;letter-spacing:-.035em;margin:0 0 .4rem;max-width:680px;min-height:1.25em;display:block;text-align:center;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.welcome-cursor{display:inline-block;width:3px;height:.9em;background:var(--primary);margin-left:4px;border-radius:2px;animation:blinkCursor .8s infinite;vertical-align:-2px;transition:opacity .6s ease}@keyframes blinkCursor{0%,to{opacity:1}50%{opacity:0}}[data-theme=dark] .welcome-title{color:#f8fafc}.welcome-title .highlight{color:var(--primary);background:linear-gradient(135deg,#10b981,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.welcome-subtitle{font-size:.88rem;color:var(--gray-400);font-weight:500;margin:0 0 1.35rem;letter-spacing:-.01em}[data-theme=dark] .welcome-subtitle{color:#94a3b8}.main-content.is-welcome .input-area{max-width:780px;width:100%;margin:0 auto;padding:0 var(--space-6);z-index:20}.main-content.is-welcome .input-bar{border-radius:32px;padding:.75rem .85rem .75rem 1.35rem;box-shadow:0 16px 40px #00000014,0 0 0 1px #0d9b6a2e;background:color-mix(in srgb,var(--white) 90%,transparent);backdrop-filter:blur(25px);-webkit-backdrop-filter:blur(25px);transition:all .35s cubic-bezier(.16,1,.3,1)}.main-content.is-welcome .input-bar:focus-within{border-color:var(--primary);box-shadow:0 20px 48px #0d9b6a38,0 0 0 2px var(--primary);transform:translateY(-2px)}[data-theme=dark] .main-content.is-welcome .input-bar{background:#121a2bd9;border-color:#0d9b6a59;box-shadow:0 20px 50px #0000008c,0 0 35px #0d9b6a24}.file-previews{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem .25rem;overflow-x:auto;width:100%}.file-preview-item{position:relative;width:52px;height:52px;border-radius:10px;overflow:hidden;border:1px solid rgba(255,255,255,.15);background:#0003;flex-shrink:0;display:flex;align-items:center;justify-content:center}.file-preview-item .pdf-preview{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;background:#1e293b;color:#f8fafc;padding:2px}.file-preview-item .pdf-icon{font-size:18px}.file-preview-item .pdf-name{font-size:8px;text-overflow:ellipsis;overflow:hidden;white-space:nowrap;max-width:44px}.file-preview-item .remove-preview-btn{position:absolute;top:2px;right:2px;width:16px;height:16px;border-radius:50%;background:#000000bf;color:#fff;border:none;font-size:11px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1;transition:background .2s ease}.file-preview-item .remove-preview-btn:hover{background:#ef4444}.main-content.is-welcome .bottom-info{position:absolute;bottom:14px;left:0;right:0;text-align:center;font-size:12px;color:var(--gray-400);letter-spacing:.2px}[data-theme=dark] .main-content.is-welcome .bottom-info{color:#64748b}.main-content:not(.is-welcome){justify-content:flex-start}.main-content:not(.is-welcome) .chat-area{flex:1;overflow-y:auto;padding:0 var(--space-8)}.main-content:not(.is-welcome) .input-area{padding:var(--space-2) var(--space-8) var(--space-2);transition:all .4s cubic-bezier(.16,1,.3,1)}.chat-area{flex:1;overflow-y:auto;display:flex;flex-direction:column;padding:0 var(--space-8);scroll-behavior:smooth}.messages-container{flex:1;display:flex;flex-direction:column;gap:var(--space-6);padding:4.5rem 0 160px;max-width:760px;margin:0 auto;width:100%}.message{animation:fadeInUp .4s ease forwards}.message-user{display:flex;justify-content:flex-end}.message-user .message-bubble{background:#0d9b6a14;border:1px solid rgba(13,155,106,.22);color:var(--gray-900);border-radius:20px 20px 4px;padding:.95rem 1.35rem;max-width:75%;font-size:var(--font-size-base);line-height:1.6;box-shadow:0 4px 16px #00000008}[data-theme=dark] .message-user .message-bubble{background:#0d9b6a29;border-color:#10b98159;color:#f8fafc;box-shadow:0 6px 20px #00000040}.message-assistant{display:flex;flex-direction:column;gap:var(--space-3)}.message-assistant-header{display:flex;align-items:center;gap:var(--space-2)}.message-assistant-header .assistant-icon{width:24px;height:24px;background:transparent;display:flex;align-items:center;justify-content:center}.message-assistant-header .assistant-icon img{width:24px;height:24px;object-fit:contain}.message-assistant-header .assistant-icon svg{width:14px;height:14px;color:var(--white)}.message-assistant-header span{font-size:var(--font-size-xs);font-weight:600;color:var(--gray-500);text-transform:uppercase;letter-spacing:.05em}.message-assistant .message-content{padding-left:0;font-size:var(--font-size-base);line-height:1.8;color:var(--gray-700)}.message-assistant .message-content p{margin-bottom:var(--space-4)}.message-assistant .message-content strong{color:var(--gray-900);font-weight:600}.message-point{display:flex;gap:var(--space-3);margin-bottom:var(--space-4);align-items:flex-start}.message-point .point-icon{width:22px;height:22px;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}.message-point .point-icon svg{width:12px;height:12px;color:var(--primary)}.message-point .point-content{flex:1}.message-point .point-content strong{display:block;margin-bottom:var(--space-1);color:var(--gray-900)}.message-point .point-content p{margin:0;color:var(--gray-500);font-size:var(--font-size-sm)}.source-badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;background:var(--primary-light);border-radius:var(--radius-sm);font-size:var(--font-size-xs);color:var(--primary);font-weight:500;cursor:pointer;transition:background var(--transition-fast)}.source-badge:hover{background:#d1fae5}.source-badge svg{width:12px;height:12px}.message-actions{display:flex;align-items:center;flex-wrap:wrap;gap:var(--space-3);padding-top:var(--space-3);border-top:1px solid var(--gray-100);margin-top:var(--space-4)}.action-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;color:var(--gray-400);transition:all var(--transition-fast)}.action-btn:hover{background:var(--gray-100);color:var(--gray-600)}.action-btn svg{width:16px;height:16px}.message-model-info{display:none;align-items:center;margin-top:10px;animation:fadeIn .2s cubic-bezier(.16,1,.3,1)}.message-model-info-tag{display:inline-flex;align-items:center;gap:6px;background:#ffffff0d;padding:4px 10px;border-radius:8px;border:1px solid rgba(255,255,255,.08);font-size:11.5px;font-weight:500;color:var(--text-secondary);font-family:var(--font-sans, system-ui)}.message-model-info-tag svg{color:var(--primary, #0D9B6A);flex-shrink:0}[data-theme=light] .message-model-info-tag{background:var(--gray-100);border-color:var(--gray-200);color:var(--gray-700)}.retry-btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:.5rem 1rem;background:var(--white);border:1.5px solid #FCA5A5;border-radius:var(--radius-lg);cursor:pointer;font-size:var(--font-size-sm);font-weight:500;color:#dc2626;transition:all var(--transition-fast);margin-top:var(--space-2)}.retry-btn:hover{background:#fef2f2;border-color:#ef4444}.retry-btn svg{width:14px;height:14px}.message-error{color:#dc2626;font-size:var(--font-size-sm);padding:var(--space-3);background:#fef2f2;border-radius:var(--radius-md);border:1px solid #FECACA}.loading-dots{display:flex;gap:6px;padding:var(--space-4)}.loading-dots span{width:8px;height:8px;background:var(--primary);border-radius:50%;animation:pulse 1.4s infinite ease-in-out}.loading-dots span:nth-child(1){animation-delay:0s}.loading-dots span:nth-child(2){animation-delay:.2s}.loading-dots span:nth-child(3){animation-delay:.4s}.input-area{padding:var(--space-2) var(--space-8) var(--space-2);max-width:760px;margin:0 auto;width:100%}.input-bar{display:flex;align-items:center;gap:var(--space-3);padding:.5rem .5rem .5rem 1rem;background:var(--white);border:1.5px solid var(--gray-200);border-radius:var(--radius-2xl);box-shadow:var(--shadow-md);transition:all var(--transition-fast)}.input-bar:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px #0d9b6a14,var(--shadow-md)}.input-attach-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:transparent;border:1.5px solid var(--gray-200);border-radius:50%;cursor:pointer;color:var(--gray-400);transition:all var(--transition-fast);flex-shrink:0}.input-attach-btn:hover{border-color:var(--gray-300);color:var(--gray-600)}.input-attach-btn svg{width:16px;height:16px}.input-text{flex:1;border:none;outline:none;font-size:var(--font-size-base);background:transparent;padding:.5rem 0;resize:none;min-height:24px;max-height:120px;line-height:1.5}.input-text::placeholder{color:var(--gray-400)}.input-send-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--primary-gradient);border:none;border-radius:50%;cursor:pointer;color:var(--white);transition:all var(--transition-fast);flex-shrink:0;box-shadow:0 2px 8px #0d9b6a4d}.input-send-btn:hover{transform:scale(1.05);box-shadow:0 4px 12px #0d9b6a66}.input-send-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.input-send-btn svg{width:18px;height:18px}.mode-buttons{display:flex;gap:var(--space-3);margin-top:var(--space-3);padding-left:var(--space-1)}.mode-btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:.4rem .85rem;font-size:var(--font-size-sm);font-weight:500;border:1.5px solid var(--gray-200);border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-fast);background:var(--white);color:var(--gray-600)}.mode-btn:hover{border-color:var(--primary);color:var(--primary)}.mode-btn.active{background:var(--primary-light);border-color:var(--primary);color:var(--primary)}.mode-btn svg{width:14px;height:14px}.mode-btn .mode-icon{font-size:14px;line-height:1}.send-hint{text-align:right;font-size:var(--font-size-xs);color:var(--gray-400);margin-top:var(--space-2);padding-right:var(--space-2)}.send-hint kbd{font-family:inherit;font-weight:500}.bottom-info{text-align:center;padding:var(--space-2) 0;font-size:var(--font-size-xs);color:var(--gray-400)}.bottom-info a{color:var(--primary)}.settings-fab{position:fixed;bottom:1.5rem;left:1.5rem;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--white);border:1.5px solid var(--gray-200);border-radius:50%;cursor:pointer;color:var(--gray-500);transition:all var(--transition-fast);box-shadow:var(--shadow-md);z-index:50}.settings-fab:hover{color:var(--primary);border-color:var(--primary);box-shadow:var(--shadow-lg)}.settings-fab svg{width:18px;height:18px}.user-menu{position:relative}.user-avatar{width:36px;height:36px;border-radius:50%;background:var(--primary-gradient);display:flex;align-items:center;justify-content:center;color:var(--white);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;border:none;transition:transform var(--transition-fast)}.user-avatar:hover{transform:scale(1.05)}.user-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);padding:var(--space-2);min-width:200px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all var(--transition-fast);z-index:200}.user-dropdown.open{opacity:1;visibility:visible;transform:translateY(0)}.user-dropdown-item{display:flex;align-items:center;gap:var(--space-3);padding:.6rem .75rem;border-radius:var(--radius-md);font-size:var(--font-size-sm);color:var(--gray-700);cursor:pointer;border:none;background:none;width:100%;text-align:left;transition:background var(--transition-fast)}.user-dropdown-item:hover{background:var(--gray-100)}.user-dropdown-item svg{width:16px;height:16px;color:var(--gray-400)}.user-dropdown-item.danger{color:#dc2626}.user-dropdown-item.danger svg{color:#dc2626}@media(max-width:480px){.search-layout{flex-direction:column}.sidebar{position:fixed;left:0;top:0;bottom:0;width:85%;max-width:320px;z-index:1001;transform:translate(-100%);transition:transform var(--transition-base);box-shadow:var(--shadow-xl)}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:1000}.sidebar.open+.sidebar-overlay{display:block}.chat-area{padding:0 var(--space-3)}.input-area{padding:var(--space-3)}.top-bar{padding:var(--space-2) var(--space-3)}.welcome-title{font-size:var(--font-size-xl);line-height:1.3}.welcome-subtitle{font-size:var(--font-size-sm)}.input-bar{border-radius:var(--radius-lg)}.message-content{max-width:92%;font-size:.95rem;line-height:1.55}.message-actions{opacity:1}.input-bar textarea{min-height:48px;max-height:120px;font-size:16px}.input-send-btn{width:44px;height:44px}.dropdown-trigger{padding:.5rem .75rem;font-size:.8rem}.dropdown-content{width:calc(100vw - 2rem);max-width:400px;max-height:60vh}.dropdown-item{padding:.65rem .875rem;font-size:.875rem}.settings-modal{margin:0;border-radius:0;max-height:100vh;max-height:100dvh;height:100vh;height:100dvh}.settings-container{flex-direction:column;padding:0;gap:0}.settings-nav{flex-direction:row;overflow-x:auto;padding:var(--space-2) var(--space-3);gap:var(--space-2);border-bottom:1px solid var(--gray-100);-webkit-overflow-scrolling:touch}.settings-nav-item{flex-shrink:0;padding:.5rem .75rem;font-size:.8rem}.settings-content{flex:1;overflow-y:auto;padding:var(--space-4)}.setting-row{flex-direction:column;align-items:flex-start;gap:var(--space-2);padding:var(--space-3) 0}.quota-progress-container{width:100%}.suggestion-cards{gap:var(--space-2)}.suggestion-card{padding:var(--space-3);font-size:.875rem}.file-preview-container{padding:var(--space-2)}.file-preview-item{max-width:80px}}@media(min-width:481px)and (max-width:768px){.sidebar{display:none}.sidebar.open{display:block}.chat-area{padding:0 var(--space-5)}.input-area{padding:var(--space-4) var(--space-5)}.welcome-title{font-size:var(--font-size-2xl)}.message-content{max-width:85%}.settings-modal{margin:2rem;max-height:calc(100vh - 4rem)}.settings-container{gap:var(--space-4)}.settings-nav{flex-direction:column;padding:var(--space-4);border-right:1px solid var(--gray-100);border-bottom:none;min-width:180px}.settings-content{padding:var(--space-4)}}@media(min-width:769px)and (max-width:1024px){.chat-area{padding:0 var(--space-6)}}.sidebar-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:900;display:none;opacity:0;transition:opacity .3s ease}.sidebar-overlay.active{display:block;opacity:1}@media(max-width:768px){.sidebar{display:flex!important;position:fixed;top:0;left:0;bottom:0;z-index:1000!important;width:280px;background:var(--sidebar-bg);box-shadow:4px 0 30px #0009;transform:translate(-100%);transition:transform .3s cubic-bezier(.16,1,.3,1);pointer-events:none}.sidebar.open{transform:translate(0);pointer-events:auto!important}.sidebar.open .sidebar-chats{display:flex!important}.sidebar.open .sidebar-text{display:inline-block!important;opacity:1!important}.sidebar.open .sidebar-btn{width:100%;justify-content:flex-start;padding:0 var(--space-4);gap:var(--space-3)}.sidebar.open .sidebar-brand{justify-content:flex-start;padding:0 var(--space-4)}.top-bar{padding:.75rem 1rem!important;justify-content:space-between!important;width:100%}.mobile-sidebar-toggle{display:flex!important;width:38px;height:38px;border-radius:12px;background:#ffffff14;border:1px solid rgba(255,255,255,.12);align-items:center;justify-content:center;cursor:pointer}.dropdown-trigger{padding:.4rem .85rem;font-size:.82rem;border-radius:999px}.main-content.is-welcome .chat-area{padding:0 1rem;max-width:100%}.main-content.is-welcome .welcome-screen{padding:0 0 1rem;max-width:100%}.welcome-logo-img{width:60px;height:60px}.main-content.is-welcome .welcome-title{font-size:1.6rem;margin-bottom:.35rem;padding:0 .5rem}.main-content.is-welcome .welcome-subtitle{font-size:.85rem;margin-bottom:1.25rem}.main-content.is-welcome .input-area{padding:0 .75rem}.main-content.is-welcome .input-bar{padding:.45rem .5rem .45rem .95rem;border-radius:24px}.input-text{font-size:.92rem}.input-attach-btn{width:32px;height:32px}.input-send-btn{width:34px;height:34px}.main-content.is-welcome .bottom-info{font-size:11px;bottom:10px;padding:0 1rem}.chat-area{padding:0 1rem}.input-area{padding:.5rem 1rem}}@media(max-width:600px){.modal{margin:.5rem;border-radius:var(--radius-lg)}.modal-header{padding:var(--space-3) var(--space-4)}.modal-body{padding:var(--space-4)}.modal-footer{padding:var(--space-3) var(--space-4)}.modal-form{gap:var(--space-3)}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;opacity:0;visibility:hidden;transition:all var(--transition-fast)}.modal-overlay.open{opacity:1;visibility:visible}.modal{background:var(--white);border-radius:var(--radius-xl);width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl);transform:scale(.95) translateY(10px);transition:transform var(--transition-base)}.modal-overlay.open .modal{transform:scale(1) translateY(0)}.modal-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--gray-100);border:none;border-radius:var(--radius-md);cursor:pointer;color:var(--gray-500);transition:all var(--transition-fast)}.modal-close:hover{background:var(--gray-200);color:var(--gray-700)}.modal-close svg{width:16px;height:16px}.settings-modal{max-width:700px!important;width:90%;height:520px;padding:0;display:flex;flex-direction:column;border-radius:var(--radius-xl);background:var(--white);overflow:hidden;box-shadow:var(--shadow-xl)}.settings-modal .modal-header{padding:var(--space-4) var(--space-6);border-bottom:1px solid var(--gray-200);display:flex;justify-content:space-between;align-items:center}.settings-container{display:flex;flex:1;overflow:hidden}.settings-nav{width:200px;background:var(--gray-50);border-right:1px solid var(--gray-200);padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-2)}.settings-nav-item{display:flex;align-items:center;gap:var(--space-3);padding:.75rem 1rem;border-radius:var(--radius-lg);font-size:var(--font-size-sm);font-weight:500;color:var(--gray-600);border:none;background:transparent;cursor:pointer;text-align:left;transition:all var(--transition-fast)}.all-chats-trigger{margin-top:.25rem;border-top:1px dashed var(--sidebar-border);padding-top:.5rem!important;color:var(--primary)!important;font-weight:600!important}.all-chats-trigger .sidebar-chat-item-clickable{color:var(--primary)!important}.all-chats-count-badge{font-size:.72rem;font-weight:700;padding:2px 7px;background:var(--primary-light);color:var(--primary);border-radius:999px;margin-left:auto}[data-theme=dark] .all-chats-count-badge{background:#0d9b6a33;color:#34d399}.all-chats-modal{max-width:580px;width:92%;display:flex;flex-direction:column;height:75vh;max-height:600px;padding:0;background:var(--white);border-radius:24px;overflow:hidden;box-shadow:0 25px 60px #00000040;border:1px solid var(--gray-200)}[data-theme=dark] .all-chats-modal{background:#121a2bf5;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.12);box-shadow:0 25px 60px #000000bf}.all-chats-modal .modal-header{padding:1.25rem 1.5rem 1rem;display:flex!important;flex-direction:row!important;align-items:center!important;justify-content:space-between!important;border-bottom:1px solid var(--gray-100);width:100%}[data-theme=dark] .all-chats-modal .modal-header{border-bottom-color:#ffffff14}.all-chats-modal-title-wrap{display:flex;align-items:center;gap:.65rem}.all-chats-modal-title-wrap svg{color:var(--primary);flex-shrink:0}.all-chats-modal-title-wrap h2{font-size:1.15rem;font-weight:700;color:var(--gray-900);margin:0;letter-spacing:-.01em}[data-theme=dark] .all-chats-modal-title-wrap h2{color:#f9fafb}.all-chats-modal .modal-close{width:34px;height:34px;border-radius:50%;background:var(--gray-100);border:1px solid var(--gray-200);color:var(--gray-500);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;flex-shrink:0}.all-chats-modal .modal-close:hover{background:var(--gray-200);color:var(--gray-800);transform:scale(1.05)}[data-theme=dark] .all-chats-modal .modal-close{background:#ffffff0f;border-color:#ffffff1a;color:#94a3b8}[data-theme=dark] .all-chats-modal .modal-close:hover{background:#ffffff24;color:#fff}.all-chats-search-bar{margin:1rem 1.5rem .5rem;padding:.65rem 1rem;background:var(--gray-50);border:1.5px solid var(--gray-200);border-radius:14px;display:flex;align-items:center;gap:.65rem;color:var(--gray-400);transition:all .2s ease}.all-chats-search-bar:focus-within{background:var(--white);border-color:var(--primary);box-shadow:0 0 0 3px #0d9b6a26}[data-theme=dark] .all-chats-search-bar{background:#ffffff0a;border-color:#ffffff14}[data-theme=dark] .all-chats-search-bar:focus-within{background:#ffffff12;border-color:var(--primary);box-shadow:0 0 0 3px #0d9b6a40}.all-chats-search-bar input{flex:1;background:transparent;border:none;font-size:.88rem;color:var(--gray-800);outline:none;font-family:var(--font-family)}[data-theme=dark] .all-chats-search-bar input{color:#f3f4f6}.all-chats-list{flex:1;overflow-y:auto;padding:.5rem 1.5rem 1.5rem;display:flex;flex-direction:column;gap:.5rem}.all-chats-item{display:flex;align-items:center;justify-content:space-between;padding:.85rem 1.15rem;border-radius:14px;background:var(--gray-50);border:1px solid var(--gray-200);cursor:pointer;transition:all .2s cubic-bezier(.16,1,.3,1)}.all-chats-item:hover{background:var(--primary-light);border-color:var(--primary);transform:translateY(-1px);box-shadow:0 4px 12px #0d9b6a1a}[data-theme=dark] .all-chats-item{background:#ffffff08;border-color:#ffffff0f}[data-theme=dark] .all-chats-item:hover{background:#0d9b6a1f;border-color:#0d9b6a59;box-shadow:0 4px 16px #00000040}.all-chats-item-main{display:flex;flex-direction:column;gap:.2rem;flex:1;min-width:0}.all-chats-item-title{font-size:.92rem;font-weight:600;color:var(--gray-800);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}[data-theme=dark] .all-chats-item-title{color:#f1f5f9}.all-chats-item-date{font-size:.76rem;color:var(--gray-400)}[data-theme=dark] .all-chats-item-date{color:#94a3b8}.all-chats-item-del-btn{width:32px;height:32px;border-radius:8px;border:none;background:transparent;color:var(--gray-400);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;margin-left:.5rem;opacity:.6}.all-chats-item:hover .all-chats-item-del-btn{opacity:1}.all-chats-item-del-btn:hover{background:#ef444426;color:#ef4444}.all-chats-empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem 1rem;text-align:center;color:var(--gray-400);gap:.75rem}.settings-nav-item:hover{background:var(--gray-100);color:var(--gray-900)}.settings-nav-item.active{background:var(--primary-light);color:var(--primary)}.settings-nav-item svg{width:18px;height:18px}.settings-content{flex:1;padding:var(--space-6);overflow-y:auto;display:flex;flex-direction:column}.settings-pane{display:none;flex-direction:column;gap:var(--space-5)}.settings-pane.active{display:flex}.settings-pane h3{font-size:var(--font-size-lg);font-weight:600;color:var(--gray-900);border-bottom:1px solid var(--gray-100);padding-bottom:var(--space-2);margin-bottom:var(--space-2)}.setting-row{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);padding:var(--space-2) 0}.setting-info h4{font-size:var(--font-size-base);font-weight:600;color:var(--gray-900);margin-bottom:var(--space-1)}.setting-info p{font-size:var(--font-size-sm);color:var(--gray-500);line-height:1.4}.theme-switcher{display:flex;background:var(--gray-100);padding:3px;border-radius:var(--radius-lg);border:1px solid var(--gray-200)}.theme-btn{padding:.5rem 1rem;font-size:var(--font-size-sm);font-weight:600;border-radius:var(--radius-md);border:none;background:transparent;cursor:pointer;color:var(--gray-500);transition:all var(--transition-fast)}.theme-btn.active{background:var(--white);color:var(--gray-900);box-shadow:var(--shadow-sm)}.toggle-switch{width:44px;height:24px;background:var(--gray-300);border-radius:var(--radius-full);position:relative;border:none;cursor:pointer;transition:background var(--transition-fast);padding:0;flex-shrink:0}.toggle-switch.active{background:var(--primary)}.toggle-knob{width:18px;height:18px;background:var(--white);border-radius:50%;position:absolute;top:3px;left:3px;transition:left var(--transition-fast);box-shadow:var(--shadow-sm)}.toggle-switch.active .toggle-knob{left:23px}.account-profile{display:flex;align-items:center;gap:var(--space-4);background:var(--gray-50);padding:var(--space-4);border-radius:var(--radius-xl);border:1px solid var(--gray-200)}.account-avatar-lg{width:54px;height:54px;background:var(--primary-gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--white);font-weight:700;font-size:var(--font-size-lg);flex-shrink:0}.account-details h4{font-size:var(--font-size-base);font-weight:600;color:var(--gray-900)}.account-details p{font-size:var(--font-size-sm);color:var(--gray-500);margin-bottom:var(--space-2)}.quota-badge-container{display:flex;gap:var(--space-2)}.badge-pro{background:#eef2ff;color:#4f46e5;border:1px solid #C7D2FE}.quota-status-row{flex-direction:column;align-items:flex-start;gap:var(--space-3);background:var(--gray-50);padding:var(--space-4);border-radius:var(--radius-xl);border:1px solid 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