:root{--ink:#17223b;--muted:#667085;--paper:#f7f8fc;--line:#dce2ee;--brand:#465cff;--brand-dark:#3347d6;--danger:#b42318;--surface:#ffffff;--soft:#eef1f8;--hover:#e7eaf2}:root[data-theme=dark]{--ink:#edf1ff;--muted:#aeb8d0;--paper:#111625;--line:#333c54;--brand:#7485ff;--brand-dark:#95a2ff;--danger:#ff9b91;--surface:#1b2234;--soft:#293249;--hover:#343e57;color-scheme:dark}*{box-sizing:border-box}body,html{margin:0;min-height:100%}body{color:var(--ink);background:var(--paper);font-family:Inter,Segoe UI,system-ui,sans-serif}button,input,textarea{font:inherit}a{color:inherit;text-decoration:none}.center{min-height:100vh;display:grid;place-items:center;padding:24px}.login-bg{background:radial-gradient(circle at 20% 10%,#dfe7ff 0,transparent 34%),radial-gradient(circle at 90% 90%,#ddf8e7 0,transparent 32%),#f7f8fc}.login-card{width:min(100%,420px);background:var(--surface);border:1px solid var(--line);border-radius:28px;padding:36px;box-shadow:0 24px 70px rgba(40,55,100,.12);display:grid;grid-gap:18px;gap:18px}.login-card h1{margin:0;text-align:center;font-size:30px}.mascot{font-size:54px}.mascot,.muted{text-align:center}.muted{color:var(--muted);margin:-8px 0 6px}label{display:grid;grid-gap:8px;gap:8px;font-weight:700}input,textarea{width:100%;border:2px solid var(--line);border-radius:14px;padding:13px 15px;color:var(--ink);background:var(--surface);outline:none}input:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px #465cff1a}button{border:0;cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}.primary{background:var(--brand);color:white;border-radius:14px;min-height:50px;padding:12px 20px;font-weight:800}.primary:hover:not(:disabled){background:var(--brand-dark)}.error{color:var(--danger);background:#fff0ee;border-radius:12px;padding:10px 12px;margin:0}.app{min-height:100vh}.topbar{height:72px;background:var(--surface);border-bottom:1px solid var(--line);justify-content:space-between;padding:0 max(24px,calc((100vw - 1080px) / 2))}.brand,.topbar{display:flex;align-items:center}.brand{gap:10px;font-weight:900;letter-spacing:.03em}.header-actions{display:flex;align-items:center;gap:8px}.theme-button{width:42px;height:42px;display:grid;place-items:center;background:var(--soft);color:var(--ink);border-radius:12px;font-size:20px}.theme-button:hover{background:var(--hover)}.ghost{background:var(--soft);color:var(--ink);border-radius:12px;padding:10px 16px;font-weight:700}.content{width:min(1080px,calc(100% - 32px));margin:0 auto;padding:44px 0 64px}.content>h1{font-size:clamp(30px,5vw,46px);margin:0 0 8px}.lead{color:var(--muted);font-size:20px;margin:0 0 30px}.cards{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:16px;gap:16px}.action-card{min-height:190px;padding:24px;border-radius:24px;display:flex;flex-direction:column;justify-content:space-between;border:2px solid transparent;transition:transform .15s ease,box-shadow .15s ease}.action-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(30,44,80,.12)}.action-card span{font-size:48px}.action-card strong{font-size:21px}.blue{background:#dfe7ff;border-color:#b8c7ff}.violet{background:#eee2ff;border-color:#d8bfff}.orange{background:#ffe8d6;border-color:#ffc99e}.green{background:#ddf5e5;border-color:#afe0bf}.back{display:inline-block;margin-bottom:18px;color:var(--brand-dark);font-weight:800}.chat-panel{background:var(--surface);border:1px solid var(--line);border-radius:24px;overflow:hidden;margin-top:24px}.messages{height:min(58vh,580px);overflow-y:auto;padding:24px;display:grid;align-content:start;grid-gap:18px;gap:18px}.content.chat-layout{width:min(1440px,calc(100% - 24px));height:calc(100vh - 72px);min-height:560px;padding:14px 0 12px;display:flex;flex-direction:column}.chat-layout .back{margin-bottom:4px}.chat-layout>h1{font-size:clamp(25px,3vw,34px);margin:0}.chat-workspace{flex:1 1;min-height:0;display:grid;grid-template-columns:270px minmax(0,1fr);grid-gap:12px;gap:12px;margin-top:10px}.chat-sidebar{min-height:0;display:flex;flex-direction:column;gap:12px;padding:14px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}.chat-sidebar-header{display:flex;align-items:center;justify-content:space-between}.chat-sidebar h2{margin:0;font-size:19px}.chat-sidebar-close,.chat-sidebar-toggle{display:none}.new-dialog-button{min-height:44px;width:100%;padding:9px 14px}.conversation-list{min-height:0;overflow-y:auto;display:grid;align-content:start;grid-gap:5px;gap:5px}.conversation-item{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 36px;align-items:center;border-radius:12px}.conversation-item.active,.conversation-item:hover{background:var(--soft)}.conversation-open{min-width:0;padding:11px 6px 11px 12px;background:transparent;color:var(--ink);text-align:left;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-menu-button{width:34px;height:34px;border-radius:9px;background:transparent;color:var(--muted);font-size:21px}.conversation-menu-button:hover{background:var(--hover);color:var(--ink)}.conversation-menu{position:absolute;z-index:6;right:6px;top:39px;padding:5px;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 28px rgba(20,30,55,.18)}.conversation-menu button{padding:8px 13px;border-radius:7px;background:transparent;color:var(--danger);font-weight:750}.conversation-menu button:hover{background:var(--soft)}.chat-main{min-width:0;min-height:0}.chat-layout .chat-panel{height:100%;min-height:0;margin-top:0;border-radius:18px;display:flex;flex-direction:column}.chat-layout .messages{flex:1 1;min-height:0;height:auto;padding:clamp(16px,2vw,28px)}.chat-layout .composer{flex:0 0 auto;background:var(--surface)}.exchange{display:grid;grid-gap:10px;gap:10px}.message-row{display:grid;grid-gap:4px;gap:4px;width:-moz-fit-content;width:fit-content;max-width:78%}.user-row{justify-self:end;justify-items:end}.assistant-row{justify-self:start;justify-items:start}.bubble{max-width:78%;border-radius:18px;padding:13px 16px;line-height:1.5;white-space:pre-wrap}.message-row .bubble{max-width:100%}.bubble.user{justify-self:end;background:var(--brand);color:white;border-bottom-right-radius:6px}.bubble.assistant{justify-self:start;background:var(--soft);border-bottom-left-radius:6px}.copy-button{background:transparent;color:var(--ink);border:0;border-radius:7px;width:32px;height:30px;padding:0;display:grid;place-items:center;font-size:18px;font-weight:800;box-shadow:none}.copy-button:hover{background:var(--hover);color:var(--ink)}.empty,.typing{color:var(--muted)}.empty{text-align:center;padding:80px 20px}.empty span{font-size:48px}.composer{border-top:1px solid var(--line);padding:16px;display:grid;grid-template-columns:1fr auto auto;grid-gap:12px;gap:12px;align-items:end}.composer textarea{resize:none;min-height:54px}.composer .primary{min-width:130px}.prompt-improve-button{min-height:50px;white-space:nowrap}.form-improve-button{justify-self:start}.chat-panel>.error{margin:0 16px 8px}.coming{margin-top:28px;min-height:360px;background:var(--surface);border:1px solid var(--line);border-radius:24px;display:grid;place-items:center;align-content:center;text-align:center;padding:30px}:root[data-theme=dark] .blue,:root[data-theme=dark] .green,:root[data-theme=dark] .orange,:root[data-theme=dark] .violet{background:#252e45;border-color:#46516f}.coming span{font-size:70px}.coming h2{font-size:28px;margin:18px 0 4px}.coming p{color:var(--muted)}.image-generator{display:grid;grid-gap:18px;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:24px}.image-generator 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image-spin{to{transform:rotate(1turn)}}.edit-source{display:flex;gap:16px;align-items:center;background:var(--soft);border-radius:16px;padding:12px}.edit-source img{width:92px;height:92px;border-radius:12px;object-fit:cover}.edit-source p{color:var(--muted);margin:5px 0}.text-button{background:transparent;color:var(--brand-dark);padding:4px 0;font-weight:800}.image-history{margin-top:38px}.image-history h2{font-size:26px}.image-empty{padding:50px 24px;text-align:center;color:var(--muted);background:var(--surface);border:1px dashed var(--line);border-radius:20px}.image-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:18px;gap:18px}.image-card{position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:20px}.image-card>img{aspect-ratio:1/1}.image-card>img,.video-card>video{width:100%;object-fit:cover;display:block}.video-card>video{aspect-ratio:16/9;background:#0b1020}.image-card>p{margin:0;padding:13px 14px 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.danger-action{background:#ffe2df;color:#8d1d15}.mobile-menu-button{display:none;position:absolute;top:10px;right:10px;z-index:2;width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.92);color:#17223b;font-size:25px;font-weight:900}.image-modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:24px;background:rgba(5,9,18,.86)}.image-modal-content{position:relative;max-width:min(1000px,94vw);max-height:92vh;background:var(--surface);border-radius:20px;padding:16px;overflow:auto}.image-modal-content img{display:block;max-width:100%;max-height:76vh;margin:auto;border-radius:12px}.video-modal-content video{display:block;width:min(1000px,90vw);max-height:76vh;border-radius:12px;background:#000}.music-list{display:grid;grid-gap:18px;gap:18px}.music-card{padding:20px;border:1px solid var(--line);border-radius:20px;background:var(--surface)}.music-card h3{margin:0 0 4px}.music-card>p{margin:0 0 14px;color:var(--muted)}.music-track{display:flex;align-items:center;gap:12px;margin:10px 0}.music-track audio{width:min(520px,100%)}.image-modal-content p{margin:14px 4px 2px}.modal-close{position:absolute;top:24px;right:24px;z-index:2;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.92);color:#17223b;font-size:30px}@media (max-width:760px){.cards{grid-template-columns:1fr 1fr}.action-card{min-height:150px}.composer{grid-template-columns:1fr auto}.composer textarea{grid-column:1/-1}.composer .primary{width:100%}.bubble,.message-row{max-width:92%}.content.chat-layout{width:100%;height:calc(100vh - 72px);min-height:480px;padding:10px 12px 0}.chat-sidebar-toggle{display:inline-flex;align-items:center;align-self:flex-start;gap:7px;margin:5px 0 8px;padding:8px 12px;border-radius:10px;background:var(--soft);color:var(--ink);font-weight:800}.chat-workspace{grid-template-columns:1fr;margin-top:0}.chat-sidebar{position:fixed;z-index:130;inset:0 auto 0 0;width:min(320px,88vw);border-radius:0 18px 18px 0;transform:translateX(-105%);transition:transform .18s ease;box-shadow:10px 0 35px rgba(10,18,35,.28)}.chat-sidebar.open{transform:translateX(0)}.chat-sidebar-close{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--soft);color:var(--ink);font-size:25px}.chat-sidebar-backdrop{position:fixed;z-index:120;inset:0;background:rgba(5,9,18,.55)}.chat-layout .chat-panel{border-radius:14px 14px 0 0}.image-controls{align-items:stretch;flex-direction:column}.create-image-button,.image-controls label{width:100%;min-width:0}.image-grid{grid-template-columns:repeat(2,1fr)}.mobile-menu-button{display:grid;place-items:center}.image-actions{padding:18px}}@media (max-width:430px){.brand span{font-size:14px}.content{padding-top:28px}.cards{grid-template-columns:1fr}.action-card{min-height:128px}.image-grid{grid-template-columns:1fr}}