*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}button,a,[role=button]{touch-action:manipulation}:root{--bg: #faf9f7;--sidebar-bg: #f0ede7;--surface: #ffffff;--accent: #cc785c;--accent-soft: rgba(204,120,92,.13);--text: #1a1211;--text-muted: #73726e;--border: rgba(0,0,0,.08);--shadow-sm: 0 1px 4px rgba(0,0,0,.06);--shadow-md: 0 4px 20px rgba(0,0,0,.09);--shadow-lg: 0 12px 40px rgba(0,0,0,.13);--radius: 14px;--radius-sm: 8px;--font: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Courier New", monospace;--tr: .22s cubic-bezier(.16,1,.3,1)}[data-theme=dark]{--bg: #18181b;--sidebar-bg: #111113;--surface: #27272a;--accent: #d4896a;--accent-soft: rgba(212,137,106,.15);--text: #e4e4e7;--text-muted: #71717a;--border: rgba(255,255,255,.07);--shadow-sm: 0 1px 4px rgba(0,0,0,.4);--shadow-md: 0 4px 20px rgba(0,0,0,.5);--shadow-lg: 0 12px 40px 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img{width:100%;height:100%;object-fit:cover;display:block}.logo-name{font-weight:700;font-size:1rem;letter-spacing:-.02em}.new-chat-btn{display:flex;align-items:center;gap:8px;width:100%;padding:8px 12px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-family:var(--font);font-size:.85rem;font-weight:500;cursor:pointer;transition:filter var(--tr),transform var(--tr);margin-bottom:12px}.new-chat-btn:hover{filter:brightness(1.08);transform:translateY(-1px)}.new-chat-btn:active{transform:translateY(0);filter:brightness(.96)}.sidebar-search-btn{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;padding:8px 11px;margin:-3px 0 10px;border-radius:11px;border:1px solid var(--border);background:color-mix(in oklab,var(--surface) 88%,transparent);color:var(--text);cursor:pointer;font-family:var(--font);font-size:.84rem;transition:border-color var(--tr),background var(--tr),transform var(--tr),box-shadow var(--tr)}.sidebar-search-main{display:inline-flex;align-items:center;gap:8px;min-width:0}.sidebar-search-main i{color:var(--accent);font-size:.82rem}.sidebar-search-btn:hover{border-color:color-mix(in oklab,var(--accent) 42%,var(--border));background:color-mix(in oklab,var(--accent-soft) 72%,var(--surface) 28%);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.sidebar-search-kbd{flex-shrink:0;padding:2px 7px;border-radius:999px;border:1px solid var(--border);background:#80808014;color:var(--text-muted);font-size:.7rem;letter-spacing:.03em}.sb-label{font-size:.7rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--text-muted);padding:4px 8px 5px}.chats-sec{flex:1 1 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.15s;justify-content:flex-start}.project-new-btn:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.projects-list{display:grid;gap:3px}.project-item{display:flex;align-items:center;gap:9px;width:100%;min-width:0;border:none;background:transparent;color:var(--text);border-radius:10px;padding:8px;cursor:pointer;transition:background .15s,color .15s;text-align:left;font-family:var(--font);font-size:.94rem}.project-item:hover{background:#80808017}.project-item.active{background:var(--accent-soft);color:var(--accent)}.project-row{position:relative;display:flex;align-items:center;border-radius:10px;transition:background .15s}.project-row:hover{background:#8080800d}.project-row .project-item{flex:1;border-radius:10px}.project-row:hover .project-item{background:transparent}.project-item-actions{display:flex;align-items:center;gap:2px;opacity:0;pointer-events:none;transition:opacity .15s;padding-right:4px;flex-shrink:0}.project-row:hover .project-item-actions{opacity:1;pointer-events:auto}.project-act{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border:none;background:transparent;color:var(--text-muted);border-radius:7px;cursor:pointer;font-size:.78rem;transition:background .13s,color .13s}.project-act:hover{background:#80808024;color:var(--text)}.project-act.danger:hover{background:#ef44441f;color:#ef4444}.project-row.drag-target{background:var(--accent-soft);outline:2px dashed var(--accent);outline-offset:-2px}.history-item.is-dragging,.ph-chat-item.is-dragging{opacity:.45}.project-ic{width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;border-radius:7px;flex-shrink:0;font-size:.88rem}.project-name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}.project-empty{font-size:.76rem;color:var(--text-muted);padding:2px 2px 6px}.project-overlay{position:fixed;inset:0;z-index:1200;display:flex;align-items:center;justify-content:center;padding:clamp(16px,4vh,40px) 16px;background:#0706085c;backdrop-filter:blur(10px);opacity:0;pointer-events:none;transition:opacity .22s ease}.project-overlay.active{opacity:1;pointer-events:all}.project-modal{width:min(660px,calc(100vw - 24px));max-height:min(88vh,820px);display:flex;flex-direction:column;border-radius:22px;border:1px solid color-mix(in oklab,var(--border) 76%,transparent);background:linear-gradient(180deg,color-mix(in oklab,var(--surface) 78%,transparent),color-mix(in oklab,var(--surface) 88%,transparent));backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);box-shadow:0 26px 80px #00000038,var(--shadow-lg);overflow:hidden;transform:translateY(12px) scale(.985);transition:transform .26s cubic-bezier(.16,1,.3,1)}.project-overlay.active .project-modal{transform:translateY(0) scale(1)}.pm-body{overflow-y:auto;flex:1;min-height:0}.pm-section-last{padding-bottom:16px}.pm-hdr{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:20px 20px 0;flex-shrink:0}.pm-hdr-left{flex:1;min-width:0}.pm-title{font-size:1.55rem;letter-spacing:-.025em;font-weight:700;line-height:1.15;color:var(--text)}.pm-subtitle{font-size:.84rem;color:var(--text-muted);margin-top:3px;line-height:1.4}.pm-icon-btn{width:34px;height:34px;border-radius:10px;border:1px solid var(--border);background:color-mix(in oklab,var(--sidebar-bg) 80%,transparent);color:var(--text-muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:.92rem;flex-shrink:0;transition:border-color .15s,color .15s,background .15s}.pm-icon-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.pm-section{padding:16px 20px 0}.pm-label{display:block;font-size:.73rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:8px}.pm-label-opt{font-weight:500;text-transform:none;letter-spacing:0;opacity:.75}.pm-name{width:100%;height:52px;border-radius:14px;border:1px solid var(--border);background:color-mix(in oklab,var(--sidebar-bg) 90%,transparent);color:var(--text);font-size:1rem;font-family:var(--font);padding:0 14px;outline:none;transition:border-color .15s,box-shadow .15s,background var(--tr)}.pm-name::placeholder{color:var(--text-muted);opacity:.72}.pm-name:focus{border-color:color-mix(in oklab,var(--accent) 55%,var(--border));box-shadow:0 0 0 4px color-mix(in oklab,var(--accent-soft) 55%,transparent)}.pm-cats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.pm-chip{border:1px solid var(--border);color:var(--text-muted);background:color-mix(in oklab,var(--sidebar-bg) 85%,transparent);border-radius:12px;padding:10px 8px 9px;display:flex;flex-direction:column;align-items:center;gap:6px;font-size:.78rem;font-weight:600;cursor:pointer;font-family:var(--font);transition:border-color .15s,background .15s,color .15s,transform .15s,box-shadow .15s;line-height:1.2;text-align:center}.pm-chip i{font-size:1.15rem;transition:transform .2s cubic-bezier(.34,1.56,.64,1)}.pm-chip span{font-size:.74rem;font-weight:600}.pm-chip:hover{transform:translateY(-2px);border-color:color-mix(in oklab,var(--accent) 40%,var(--border));box-shadow:0 4px 12px #00000014}.pm-chip:hover i{transform:scale(1.18)}.pm-chip.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);box-shadow:0 0 0 3px color-mix(in oklab,var(--accent-soft) 60%,transparent)}.pm-chip[data-cat=investing] i{color:#22c55e}.pm-chip[data-cat=homework] i{color:#3b82f6}.pm-chip[data-cat=writing] i{color:#8b5cf6}.pm-chip[data-cat=travel] i{color:#f59e0b}.pm-chip[data-cat=code] i{color:#06b6d4}.pm-chip[data-cat=design] i{color:#ec4899}.pm-chip[data-cat=health] i{color:#ef4444}.pm-chip[data-cat=cooking] i{color:#f97316}.pm-chip[data-cat=music] i{color:#6366f1}.pm-chip[data-cat=business] i{color:#14b8a6}.pm-chip[data-cat=research] i{color:#eab308}.pm-chip[data-cat=gaming] i{color:#a855f7}.pm-chip.active i{color:inherit}.pm-instr{width:100%;min-height:80px;border-radius:14px;border:1px solid var(--border);background:color-mix(in oklab,var(--sidebar-bg) 90%,transparent);color:var(--text);padding:11px 14px;resize:vertical;font-family:var(--font);font-size:.88rem;line-height:1.55;outline:none;transition:border-color .15s,box-shadow .15s,background var(--tr)}.pm-instr::placeholder{color:var(--text-muted);opacity:.65}.pm-instr:focus{border-color:color-mix(in oklab,var(--accent) 55%,var(--border));box-shadow:0 0 0 4px color-mix(in oklab,var(--accent-soft) 55%,transparent)}.pm-ftr{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:16px 20px 20px;flex-shrink:0;border-top:1px solid color-mix(in oklab,var(--border) 70%,transparent);margin-top:16px}.pm-cancel-btn{height:40px;padding:0 16px;border-radius:10px;border:1px solid var(--border);background:transparent;color:var(--text-muted);font-size:.88rem;font-weight:600;font-family:var(--font);cursor:pointer;transition:background .15s,color .15s}.pm-cancel-btn:hover{background:color-mix(in oklab,var(--sidebar-bg) 80%,transparent);color:var(--text)}.pm-create{height:40px;padding:0 20px;border-radius:10px;border:1px solid transparent;background:color-mix(in oklab,var(--text-muted) 22%,transparent);color:var(--text-muted);font-size:.88rem;font-weight:600;font-family:var(--font);cursor:not-allowed;transition:background .18s,color .18s,transform .18s,box-shadow .18s}.pm-create.ready{background:var(--accent);color:#fff;cursor:pointer;box-shadow:0 2px 10px color-mix(in oklab,var(--accent) 38%,transparent)}.pm-create.ready:hover{transform:translateY(-1px);filter:brightness(1.06)}@media(max-width:600px){.project-modal{border-radius:18px}.pm-hdr{padding:16px 16px 0}.pm-section{padding:14px 16px 0}.pm-ftr{padding:14px 16px 16px}.pm-title{font-size:1.3rem}.pm-cats{grid-template-columns:repeat(3,1fr);gap:6px}.pm-chip{padding:9px 6px 8px}}@media(max-width:400px){.pm-cats{grid-template-columns:repeat(2,1fr)}}.sidebar-footer{border-top:1px solid var(--border);padding-top:8px;display:flex;flex-direction:column;gap:1px}.sb-btn{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius-sm);background:none;border:none;cursor:pointer;font-family:var(--font);font-size:.84rem;color:var(--text-muted);text-align:left;width:100%;transition:background .15s,color .15s}.sb-btn i{width:15px;text-align:center;opacity:.65}.sb-btn:hover{background:#80808012;color:var(--text)}.sb-btn.sb-btn-logout{color:#e05555}.sb-btn.sb-btn-logout i{opacity:.95}.sb-btn.sb-btn-logout:hover{background:#e055551f;color:#e05555}.user-chip{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s}.user-chip:hover{background:#80808012}.user-av{width:26px;height:26px;border-radius:50%;flex-shrink:0;background:linear-gradient(135deg,var(--accent),#e8a98a);display:flex;align-items:center;justify-content:center;color:#fff;font-size:.72rem;font-weight:700;overflow:hidden}.user-name-txt{font-size:.84rem;font-weight:500;line-height:1.2}.user-plan-txt{font-size:.72rem;color:var(--text-muted)}.main-content{flex:1 1 0;min-width:0;display:flex;flex-direction:column;overflow:hidden;position:relative;transition:margin-left .24s cubic-bezier(.16,1,.3,1)}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:0 18px;height:52px;flex-shrink:0;border-bottom:1px solid var(--border);background:var(--bg);transition:background var(--tr),border-color var(--tr);position:relative;z-index:20}.hdr-left{display:flex;align-items:center}.chat-proj-crumb{display:flex;align-items:center;gap:2px;margin-right:6px}.chat-proj-btn{display:flex;align-items:center;gap:5px;background:none;border:none;padding:4px 8px;border-radius:var(--radius-sm);cursor:pointer;font-family:var(--font);font-size:.82rem;color:var(--text-muted);transition:background .15s,color .15s}.chat-proj-btn:hover{background:#8080801a;color:var(--accent)}.chat-proj-btn i{font-size:.72rem}.chat-proj-sep{font-size:.66rem;color:var(--text-muted);opacity:.4}.model-sel-wrap{position:relative}.model-selector{display:flex;align-items:center;gap:7px;padding:5px 11px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);cursor:pointer;font-family:var(--font);font-size:.84rem;font-weight:500;color:var(--text);transition:border-color .15s,background var(--tr)}.model-selector:hover{border-color:var(--accent)}.model-dot{width:7px;height:7px;border-radius:50%;background:#22c55e;flex-shrink:0}.model-chevron{font-size:.65rem;color:var(--text-muted)}.model-dropdown{position:absolute;top:calc(100% + 6px);left:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:5px;box-shadow:var(--shadow-lg);z-index:200;min-width:210px;display:none}.model-dropdown.open{display:block;animation:dropIn .15s ease}@keyframes dropIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}.mdl-opt{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s}.mdl-opt:hover{background:var(--sidebar-bg)}.mdl-opt.selected{background:var(--accent-soft)}.mdl-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}.mdl-info strong{display:block;font-size:.84rem}.mdl-info span{font-size:.75rem;color:var(--text-muted)}.mdl-opt.coming-soon{opacity:.5;cursor:default}.mdl-opt.coming-soon:hover{background:transparent}.hdr-actions{display:flex;align-items:center;gap:4px}.hdr-btn{width:32px;height:32px;border-radius:var(--radius-sm);border:none;background:transparent;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.9rem;transition:background .15s,color .15s}.hdr-btn:hover{background:#8080801a;color:var(--text)}.hdr-btn.active{color:var(--accent)}.chat-body{flex:1 1 0;min-height:0;overflow-y:auto;display:flex;flex-direction:column}.welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;text-align:center}.welcome-icon{width:88px;height:88px;border-radius:22px;background:transparent;display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;margin:0 auto 22px;box-shadow:none;overflow:visible}.welcome-icon 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