:root{color-scheme:dark;--bg:#080f13;--panel:#101c23;--soft:#15242c;--line:#263942;--text:#eff8fa;--muted:#a6bdc7;--accent:#39d4d6;font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--text)}header{max-width:1320px;margin:auto;padding:24px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}button,input,textarea,select{font:inherit}button,a.button,.uploadButton{min-height:44px;cursor:pointer;border:1px solid var(--line);border-radius:12px;background:var(--soft);color:var(--text);padding:10px 16px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}button:hover,a.button:hover,.uploadButton:hover{border-color:var(--accent)}button:disabled{opacity:.5;cursor:wait}.primary{background:var(--accent);border-color:var(--accent);color:#061719;font-weight:650}.quiet{background:transparent;border-color:transparent}.wordmark{font-size:27px;font-weight:850;letter-spacing:-1px;background:transparent;border:0;padding:0}.wordmark span{color:var(--accent)}#profile{display:flex;align-items:center;gap:13px;font-size:.875rem}.avatar{background:#123239;border:1px solid #27616b;padding:6px 9px;border-radius:11px;color:#77ecec;font-weight:650}main{max-width:1250px;margin:auto;padding:40px 32px}h1{font-size:clamp(1.8rem,3vw,2.65rem);letter-spacing:-.045em;line-height:1.15;margin:12px 0 14px}h2{font-size:1.25rem;line-height:1.3}.eyebrow{font-size:.8rem;letter-spacing:.15em;color:var(--accent);font-weight:650}.muted{color:var(--muted)}.small{font-size:.8125rem}.login{max-width:430px;margin:7vh auto}label{display:block;font-size:.875rem;margin:14px 0 7px}input,textarea,select{color:var(--text);background:#0a151b;border:1px solid var(--line);border-radius:10px;padding:12px;width:100%;min-width:0}textarea{resize:vertical;min-height:88px}input:focus,textarea:focus,button:focus-visible,a:focus-visible,summary:focus-visible,select:focus{outline:2px solid var(--accent);outline-offset:3px}#loginForm .primary{width:100%;margin-top:24px}.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:30px 0 60px;max-width:1050px}.tile{display:flex;flex-direction:column;align-items:flex-start;text-align:left;padding:26px 24px;min-height:185px;border-radius:20px;background:linear-gradient(150deg,#13232b,#0d191f);transition:transform .18s ease,border-color .18s ease}.tile:hover{transform:translateY(-3px)}.tileIcon{font-size:2.1rem;line-height:1;min-width:64px;min-height:64px;border-radius:17px;display:grid;place-items:center;background:#23455b;margin-bottom:18px}.tile:nth-child(2) .tileIcon{background:#193d36}.tile:nth-child(3) .tileIcon{background:#353354}.tile:nth-child(4) .tileIcon{background:#493c26}.tile:nth-child(5) .tileIcon{background:#203a55}.tile:nth-child(6) .tileIcon{background:#273d42}.tile strong{font-size:1.125rem}.tile small{font-size:.875rem;color:var(--muted);margin-top:3px}.workspaceHeading{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:24px}.workspaceHeading .quiet{padding-left:0;color:var(--muted)}.workspaceHeading h1{font-size:1.8rem}.workgrid{display:grid;grid-template-columns:215px minmax(0,1fr);gap:26px}details{border:1px solid var(--line);border-radius:15px;background:var(--panel);padding:16px;margin-bottom:16px}summary{cursor:pointer;font-size:.9375rem;font-weight:600;min-height:32px;overflow-wrap:anywhere}aside details{background:transparent;border:0;padding:0}#chatList{display:grid;gap:6px;padding:10px 0}#chatList button{text-align:left;justify-content:flex-start;background:transparent;overflow-wrap:anywhere;width:100%;font-size:.875rem;line-height:1.5}#chatList button.active{background:var(--soft);border-color:var(--accent)}.messages{padding:12px 0;min-height:200px}.message{padding:20px;margin:14px 0;background:var(--panel);border:1px solid var(--line);border-radius:17px;overflow-wrap:anywhere}.message.user{margin-left:8%;background:#123037;border-color:#26515a}.messageTop{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;font-size:.875rem;color:var(--accent)}.message pre,.job pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;margin:0}.message button{padding:5px 9px;font-size:.8125rem;min-height:34px}.message .state{color:#ffc787}.empty{color:var(--muted);text-align:center;padding:40px 10px}.compose{padding:20px;background:var(--panel);border:1px solid #2b515c;border-radius:20px;position:sticky;bottom:16px}.compose textarea{background:transparent;border:0;padding:4px 0}.composeFoot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:12px}.composeFoot span{max-width:440px}.notice{padding:12px 16px;background:#243023;border:1px solid #586245;border-radius:12px;color:#e2e6c8;margin-bottom:16px}.fileList{display:grid;gap:10px}.fileRow{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:12px}.fileRow label{display:flex;align-items:center;gap:10px;flex:1;min-width:0;margin:0;overflow-wrap:anywhere}.fileRow input[type=checkbox]{width:20px;height:20px;flex:0 0 auto;accent-color:var(--accent)}.fileRow button{font-size:.8125rem;padding:8px 10px}.uploadButton{position:relative;overflow:hidden;font-size:.9375rem;width:max-content}.uploadButton input{position:absolute;inset:0;opacity:0;cursor:pointer}.job{background:#0b161c;margin-top:18px;padding:16px;border-radius:12px;border:1px solid var(--line)}.job h3{font-size:1rem;margin:0 0 12px}.job details{background:transparent;padding:12px;margin-top:12px}.job pre{font-size:.9375rem}.job .small{color:var(--muted)}footer{display:flex;justify-content:space-between;gap:14px;border-top:1px solid var(--line);padding:24px 0;margin-top:35px;color:var(--muted);font-size:.875rem}#notice{position:fixed;z-index:30;bottom:22px;left:50%;transform:translateX(-50%);max-width:650px;width:calc(100% - 32px);padding:16px 20px;background:#173740;border:1px solid #448b99;border-radius:14px;box-shadow:0 12px 40px #0008}dialog{width:min(980px,calc(100% - 24px));max-height:92vh;overflow:auto;background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:18px;padding:22px}dialog::backdrop{background:#000b}.dialogHeading{display:flex;align-items:center;justify-content:space-between;gap:16px}.dialogHeading h2{overflow-wrap:anywhere}#previewContent{margin:18px 0}#previewContent img{max-width:100%;max-height:55vh;display:block;margin:auto}#previewContent iframe{width:100%;height:55vh;border:1px solid var(--line);border-radius:10px}#previewContent pre{white-space:pre-wrap;overflow-wrap:anywhere}#editControls{display:grid;gap:10px;margin:20px 0}#editControls .row{display:flex;gap:10px;flex-wrap:wrap}#editControls .row>*{flex:1;min-width:100px}#editControls label{margin:0}.button{margin-top:10px}@media(min-width:761px){#historyPanel>summary{margin-bottom:10px}}@media(max-width:760px){header{padding:18px 16px}main{padding:26px 16px}.tiles{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.tile{padding:18px 16px;min-height:168px}.tileIcon{min-width:52px;min-height:52px;font-size:1.8rem}.tile small{font-size:.8125rem}.desktop{display:none}.workgrid{display:block}.workspaceHeading{align-items:flex-end}.workspaceHeading button{font-size:.875rem}aside{margin-bottom:18px}.compose{position:static;padding:16px}.composeFoot{flex-wrap:wrap}.composeFoot span{width:100%;max-width:none}.composeFoot .primary{margin-left:auto}footer{flex-wrap:wrap}.message{padding:15px}.message.user{margin-left:4%}.fileRow{flex-wrap:wrap}.fileRow label{flex-basis:65%}.login{margin-top:4vh}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.imageOptions{display:grid;grid-template-columns:1fr 1fr;gap:16px}.imageResults{display:grid;gap:18px;margin-top:24px}.imageResult img{display:block;max-width:100%;max-height:640px;border-radius:12px;object-fit:contain;margin:14px auto}.imageResult h3{white-space:pre-wrap;overflow-wrap:anywhere}.imageResult .button{margin-right:12px}.imageResult button{margin:10px 0}.messageTop span{overflow-wrap:anywhere}#imagePanel[hidden]{display:none}@media(max-width:480px){.imageOptions{grid-template-columns:1fr}}

/* Attachments stay next to the active message or image prompt. */
#compose{z-index:5;position:sticky;bottom:calc(12px + env(safe-area-inset-bottom,0px));box-shadow:0 8px 28px #0005}
#attachmentTools{position:relative;margin-bottom:10px}
.attachmentToolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.attachmentToolbar .uploadButton{margin:0;min-height:44px}
#filePanel{position:static;border:0;background:transparent;padding:0;margin:0;flex:1;min-width:150px}
#filePanel>summary{display:list-item;min-height:44px;padding:10px 6px;font-size:.875rem}
.attachmentContents{position:absolute;bottom:calc(100% + 8px);left:0;right:0;z-index:7;background:var(--panel);border:1px solid var(--accent);border-radius:14px;padding:16px;max-height: min(45vh,320px);max-height:min(45dvh,320px);overflow:auto;overscroll-behavior:contain;box-shadow:0 10px 30px #0008}
#imageAttachments .attachmentContents{top:calc(100% + 8px);bottom:auto}
#selectedFiles{overflow-wrap:anywhere;max-height:76px;overflow:auto}
@media(max-width:480px){.attachmentToolbar{gap:8px}.attachmentToolbar .uploadButton{padding:8px 12px}#filePanel{min-width:130px}#filePanel>summary{font-size:.8125rem}.attachmentContents{padding:12px}#compose .composeFoot span{font-size:.75rem}}

/* APP-01: compact composer occupies layout space; it never overlays messages. */
#compose{position:relative;bottom:auto;padding:12px 16px;margin-top:12px}
#compose textarea{min-height:32px;max-height:none;resize:none;line-height:24px;padding:4px 0;box-sizing:border-box}
.composeHeading{display:flex;justify-content:space-between;align-items:center;gap:10px}
.composeHeading label{margin:6px 0}
#toggleComposer{font-size:.8rem;min-height:36px;padding:5px 10px}
#compose .composeFoot{margin-top:8px}
#compose.minimized #attachmentTools,#compose.minimized #selectedFiles,#compose.minimized #sendDestination{display:none}
#compose.minimized .composeHeading label{margin:0}
#compose.minimized .composeFoot{justify-content:flex-end}
.builderTile{text-decoration:none;color:var(--text);border:1px solid var(--accent)}
.builderTile .tileIcon{background:#15434a!important;color:#64e8e7}
.builderNav{margin:0;font-weight:650;color:var(--accent)!important}
@media(max-width:480px){#profile{gap:6px}#profile .avatar{display:none}.builderNav{font-size:.8rem;padding:8px}.composeFoot span{max-height:3em;overflow:auto}}