/* Datum Agent — full-screen chat in the datum.build Gradient Flow night theme */
:root{
  --bg:#0A0713;--surface:#120D24;--surface-2:#1B1440;--surface-3:#241B52;--line:#2A2150;--line-2:#3A2E6E;
  --ink:#F4F1FB;--mut:#B7AED3;--faint:#8479A8;--accent:#22D3EE;--violet:#7C3AED;--green:#22C55E;--green-ink:#052E16;
  --danger:#F87171;--warn:#FBBF24;--flow:linear-gradient(90deg,#22D3EE,#7C3AED 38%,#F0398F 70%,#FF8A3D);
  --r:14px;--side:288px;--panel:min(46vw,760px);
  --font:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',sans-serif;--display:'Space Grotesk',system-ui,sans-serif;--mono:'JetBrains Mono',ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box}[hidden]{display:none!important}html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--ink);font:15.5px/1.6 var(--font);-webkit-font-smoothing:antialiased;overflow:hidden}
a{color:var(--accent)}button,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}
.flow{background:var(--flow);-webkit-background-clip:text;background-clip:text;color:transparent}
.app{display:grid;grid-template-columns:var(--side) minmax(0,1fr);height:100vh;height:100dvh}
.app.with-panel{grid-template-columns:var(--side) minmax(0,1fr) var(--panel)}
.app.side-collapsed{grid-template-columns:0 minmax(0,1fr)}.app.side-collapsed.with-panel{grid-template-columns:0 minmax(0,1fr) var(--panel)}

/* sidebar */
.side{display:flex;flex-direction:column;min-width:0;background:var(--surface);border-right:1px solid var(--line);padding:14px 12px calc(12px + env(safe-area-inset-bottom));overflow:hidden}
.side-top{display:flex;align-items:center;justify-content:space-between;padding:4px 6px 12px}
.brand img{height:24px;width:auto;display:block}.brand-txt{font:700 18px var(--display);background:var(--flow);-webkit-background-clip:text;background-clip:text;color:transparent}
.new-chat{display:flex;align-items:center;gap:8px;width:100%;padding:11px 14px;border-radius:12px;border:1px solid var(--line-2);background:var(--surface-2);font-weight:700;cursor:pointer;transition:background .15s}
.new-chat:hover{background:var(--surface-3)}
.search{display:flex;align-items:center;gap:8px;margin:10px 0 6px;padding:8px 12px;border-radius:10px;background:var(--bg);border:1px solid var(--line);color:var(--faint)}
.search input{flex:1;border:0;background:transparent;outline:none;min-width:0}
.side-scroll{flex:1;overflow-y:auto;margin:6px -4px;padding:0 4px;scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}
.group{margin:14px 0 4px;padding:0 10px;font:700 11.5px var(--font);letter-spacing:.08em;text-transform:uppercase;color:var(--faint);display:flex;justify-content:space-between;align-items:center}
.group button{background:none;border:0;color:var(--faint);cursor:pointer;font-size:15px;padding:0 4px}
.item{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;border-radius:10px;border:0;background:none;text-align:left;cursor:pointer;color:var(--mut)}
.item:hover{background:var(--surface-2);color:var(--ink)}.item.on{background:var(--surface-3);color:var(--ink)}
.item .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.item .x{opacity:0;background:none;border:0;color:var(--faint);cursor:pointer;padding:0 2px}.item:hover .x,.item:focus-within .x{opacity:1}
.dot{width:8px;height:8px;border-radius:50%;flex:none;background:var(--faint)}.dot.done,.dot.passed{background:var(--green)}.dot.running,.dot.queued{background:var(--accent);animation:pulse 1.2s infinite}.dot.failed{background:var(--warn)}.dot.cancelled{background:var(--danger)}
@keyframes pulse{50%{opacity:.35}}
.account{border-top:1px solid var(--line);padding-top:10px;margin-top:6px}
.acct{display:flex;align-items:center;gap:10px;width:100%;padding:8px;border-radius:12px;border:0;background:none;cursor:pointer;text-align:left}
.acct:hover{background:var(--surface-2)}
.avatar{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font:700 14px var(--display);background:var(--flow);color:#fff;flex:none}
.acct .meta{min-width:0;flex:1}.acct .meta b{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.acct .meta span{font-size:12.5px;color:var(--faint)}
.plan{font-size:11px;font-weight:800;padding:2px 8px;border-radius:999px;background:var(--surface-3);color:var(--accent)}.plan.beast{background:var(--flow);color:#fff}
.menu{position:absolute;bottom:72px;left:12px;right:12px;background:var(--surface-2);border:1px solid var(--line-2);border-radius:14px;padding:6px;box-shadow:0 20px 50px -20px #000;z-index:30}
.menu button,.menu a{display:block;width:100%;text-align:left;padding:9px 12px;border-radius:10px;border:0;background:none;cursor:pointer;color:var(--ink);text-decoration:none;font-size:14.5px}
.menu button:hover,.menu a:hover{background:var(--surface-3)}.menu hr{border:0;border-top:1px solid var(--line);margin:6px 4px}

/* main */
.main{display:flex;flex-direction:column;min-width:0;min-height:0;position:relative;background:radial-gradient(900px 500px at 50% -10%,#1d1045 0%,transparent 60%),var(--bg)}
.top{display:flex;align-items:center;gap:10px;padding:12px 18px;padding-top:calc(12px + env(safe-area-inset-top));border-bottom:1px solid transparent}
.top-title{flex:1;min-width:0;font:600 15px var(--display);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--mut)}
.top-actions{display:flex;gap:8px}
.chip-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:999px;border:1px solid var(--line-2);background:var(--surface-2);cursor:pointer;font-weight:600;font-size:13.5px;text-decoration:none;color:var(--ink)}
.chip-btn:hover{background:var(--surface-3)}.chip-btn.ghost{background:transparent}
.icon-btn{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:10px;border:0;background:none;cursor:pointer;font-size:17px;color:var(--mut)}
.icon-btn:hover{background:var(--surface-2);color:var(--ink)}.icon-btn.rec{background:#3b0d18;color:var(--danger);animation:pulse 1s infinite}
.only-mobile{display:none}

.thread{flex:1;overflow-y:auto;padding:12px 18px 24px;scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:var(--line-2) transparent}
.thread>*{max-width:820px;margin-left:auto;margin-right:auto}
.empty{display:flex;flex-direction:column;align-items:center;text-align:center;padding:9vh 12px 20px}
.empty-mascot{width:112px;height:auto;image-rendering:pixelated;filter:drop-shadow(0 12px 30px rgba(124,58,237,.45))}
.empty h1{font:700 clamp(28px,4.2vw,44px)/1.08 var(--display);letter-spacing:-.03em;margin:18px 0 10px}
.empty p{color:var(--mut);max-width:560px;margin:0 0 22px}
.examples{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.example{padding:10px 16px;border-radius:999px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);text-decoration:none;font-weight:600;font-size:14px;transition:.15s}
.example:hover{border-color:var(--accent);background:var(--surface-2)}

.msg{margin:22px auto;display:flex;flex-direction:column}
.msg.user{align-items:flex-end}
.msg.user .bubble{background:var(--surface-2);border:1px solid var(--line);padding:11px 15px;border-radius:18px 18px 6px 18px;max-width:85%;white-space:pre-wrap;word-wrap:break-word}
.msg.assistant .body{word-wrap:break-word}
.body p{margin:0 0 12px}.body p:last-child{margin-bottom:0}.body ul,.body ol{margin:0 0 12px;padding-left:22px}.body li{margin:4px 0}
.body h1,.body h2,.body h3{font-family:var(--display);line-height:1.2;margin:18px 0 8px}.body h1{font-size:22px}.body h2{font-size:19px}.body h3{font-size:17px}
.body code{font:13.5px var(--mono);background:var(--surface-2);padding:2px 6px;border-radius:6px}
.body pre{position:relative;background:#07050f;border:1px solid var(--line);border-radius:12px;padding:14px;overflow-x:auto;margin:0 0 12px}
.body pre code{background:none;padding:0;font-size:13px;line-height:1.55}
.body pre .copy{position:absolute;top:8px;right:8px;padding:3px 9px;font-size:12px;border-radius:8px;border:1px solid var(--line-2);background:var(--surface-2);color:var(--mut);cursor:pointer}
.body table{border-collapse:collapse;margin:0 0 12px;display:block;overflow-x:auto}.body th,.body td{border:1px solid var(--line);padding:6px 10px}.body th{background:var(--surface-2)}
.body blockquote{margin:0 0 12px;padding:6px 14px;border-left:3px solid var(--violet);color:var(--mut)}
.body a{color:var(--accent)}
.cursor::after{content:"▍";color:var(--accent);animation:pulse 1s infinite;margin-left:1px}
.thumbs{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 8px;justify-content:flex-end}.thumbs img{height:84px;border-radius:10px;border:1px solid var(--line)}
.file-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:9px;background:var(--surface-2);border:1px solid var(--line);font-size:13px}
.note{display:flex;align-items:center;gap:8px;margin:8px 0;font-size:13.5px;color:var(--mut)}
.note.status::before{content:"";width:14px;height:14px;border-radius:50%;border:2px solid var(--line-2);border-top-color:var(--accent);animation:spin .8s linear infinite}
.note.memory{color:#c4b5fd}.note.err{color:var(--danger)}
@keyframes spin{to{transform:rotate(360deg)}}
.sources{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0}
.source{display:inline-flex;gap:6px;align-items:center;max-width:280px;padding:6px 10px;border-radius:10px;background:var(--surface);border:1px solid var(--line);font-size:12.5px;color:var(--mut);text-decoration:none}
.source b{color:var(--accent)}.source span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.steps{margin:10px 0;display:grid;gap:8px}
.step{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:start;padding:10px;border-radius:12px;background:var(--surface);border:1px solid var(--line)}
.step img{width:160px;border-radius:8px;border:1px solid var(--line);cursor:zoom-in}.step small{color:var(--faint)}
.actions{display:flex;gap:2px;margin-top:8px;opacity:.75}.actions button{background:none;border:0;cursor:pointer;color:var(--faint);padding:4px 7px;border-radius:8px;font-size:14px}
.actions button:hover{background:var(--surface-2);color:var(--ink)}.actions button.on{color:var(--accent)}

/* build card */
.build{margin:16px auto;border:1px solid var(--line-2);border-radius:16px;background:linear-gradient(180deg,var(--surface-2),var(--surface));overflow:hidden}
.build-head{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line)}
.build-head b{flex:1;min-width:0;font-family:var(--display);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.build-steps{list-style:none;margin:0;padding:10px 14px;display:grid;gap:6px;font-size:14px}
.build-steps li{display:flex;gap:8px;align-items:baseline}.build-steps li small{color:var(--faint);margin-left:auto;padding-left:10px;text-align:right}
.build-foot{display:flex;gap:8px;flex-wrap:wrap;padding:10px 14px;border-top:1px solid var(--line)}
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:12px;border:0;font-weight:800;cursor:pointer;text-decoration:none}
.btn.primary{background:var(--green);color:var(--green-ink);box-shadow:0 0 0 1px #16a34a inset,0 10px 24px -12px rgba(34,197,94,.7)}.btn.primary:hover{filter:brightness(1.07)}
.btn.soft{background:var(--surface-3);color:var(--ink)}.btn:disabled{opacity:.55;cursor:default}

/* composer */
.composer{margin:0 auto;width:min(820px,calc(100% - 28px));margin-bottom:calc(14px + env(safe-area-inset-bottom));background:var(--surface);border:1px solid var(--line-2);border-radius:20px;padding:10px 12px 8px;box-shadow:0 20px 60px -30px rgba(124,58,237,.6)}
.composer:focus-within{border-color:#5b46a8}
.composer textarea{display:block;width:100%;resize:none;border:0;background:transparent;outline:none;max-height:40vh;padding:6px 4px;line-height:1.5}
.controls{display:flex;justify-content:space-between;align-items:center;gap:8px}.controls .left,.controls .right{display:flex;align-items:center;gap:4px}
.toggle{padding:6px 12px;border-radius:999px;border:1px solid var(--line-2);background:none;cursor:pointer;font-size:13px;font-weight:700;color:var(--mut)}
.toggle[aria-pressed="true"]{background:rgba(34,211,238,.12);border-color:var(--accent);color:var(--accent)}
.seg{display:inline-flex;padding:3px;border-radius:999px;background:var(--bg);border:1px solid var(--line)}
.seg button{padding:5px 13px;border-radius:999px;border:0;background:none;cursor:pointer;font-size:13px;font-weight:700;color:var(--mut)}
.seg button.on{background:var(--surface-3);color:var(--ink)}
.send{width:38px;height:38px;border-radius:12px;border:0;background:var(--green);color:var(--green-ink);font-size:18px;font-weight:900;cursor:pointer;margin-left:4px}
.send.stop{background:var(--ink);color:var(--bg)}.send:disabled{opacity:.45;cursor:default}
.attachments{display:flex;flex-wrap:wrap;gap:6px}.attachments:empty{display:none}.attachments .file-chip button{background:none;border:0;color:var(--faint);cursor:pointer}
.build-opts{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:2px 2px 6px}.build-opts input{flex:1;min-width:220px;padding:7px 12px;border-radius:10px;border:1px solid var(--line);background:var(--bg);outline:none}
.fine{margin:4px 4px 0;font-size:11.5px;color:var(--faint)}

/* panel */
.panel{display:flex;flex-direction:column;min-width:0;border-left:1px solid var(--line);background:var(--surface)}
.panel[hidden]{display:none}
.panel-top{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;padding-top:calc(10px + env(safe-area-inset-top));border-bottom:1px solid var(--line)}
.tabs{display:flex;gap:4px}.tabs button{padding:6px 12px;border-radius:9px;border:0;background:none;cursor:pointer;font-weight:700;font-size:13.5px;color:var(--mut)}.tabs button.on{background:var(--surface-3);color:var(--ink)}
.panel-actions{display:flex;gap:6px;align-items:center}
.panel-body{flex:1;min-height:0;overflow:auto;background:#fff}
.panel-body iframe{width:100%;height:100%;border:0;display:block;background:#fff}
.panel-body.dark{background:var(--bg)}
.files{display:grid;grid-template-columns:220px 1fr;height:100%}.files ul{list-style:none;margin:0;padding:8px;border-right:1px solid var(--line);overflow:auto}
.files li button{width:100%;text-align:left;padding:6px 8px;border-radius:8px;border:0;background:none;color:var(--mut);cursor:pointer;font:13px var(--mono)}.files li button.on,.files li button:hover{background:var(--surface-2);color:var(--ink)}
.files pre{margin:0;padding:14px;overflow:auto;font:12.5px/1.55 var(--mono);color:var(--ink)}
.panel-msg{padding:40px 24px;text-align:center;color:var(--mut)}

/* modal (sign in, paywall) */
.overlay{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:16px;background:rgba(5,3,12,.72);backdrop-filter:blur(6px)}
.overlay[hidden]{display:none}
.modal{width:min(440px,100%);background:var(--surface);border:1px solid var(--line-2);border-radius:22px;padding:28px;box-shadow:0 40px 90px -30px #000;position:relative}
.modal h2{font:700 26px/1.1 var(--display);letter-spacing:-.02em;margin:10px 0 8px}.modal p{color:var(--mut);margin:0 0 16px}
.modal label{display:block;font-size:13px;font-weight:700;color:var(--mut);margin:0 0 6px}
.modal input[type=email],.modal input[type=text]{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line-2);background:var(--bg);outline:none;font-size:16px}
.modal input:focus{border-color:var(--accent)}
.modal .btn{width:100%;justify-content:center;margin-top:14px;padding:12px}
.modal .err{color:var(--danger);font-size:13.5px;margin:10px 0 0;min-height:1em}
.modal .link{background:none;border:0;color:var(--accent);cursor:pointer;padding:0;font-weight:700}
.modal .x{position:absolute;top:14px;right:14px}
.code-boxes{display:flex;gap:8px;justify-content:space-between}
.code-boxes input{width:100%;max-width:52px;aspect-ratio:1/1.15;text-align:center;font:700 22px var(--display);border-radius:12px;border:1px solid var(--line-2);background:var(--bg);outline:none}
.code-boxes input:focus{border-color:var(--accent)}
.price-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:6px}
.price{padding:14px;border-radius:14px;border:1px solid var(--line-2);background:var(--surface-2);cursor:pointer;text-align:left}
.price:hover{border-color:var(--accent)}.price b{display:block;font:700 20px var(--display)}.price span{font-size:12.5px;color:var(--mut)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:60;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;font-weight:700;font-size:14px;box-shadow:0 20px 40px -16px #000}
.lightbox{position:fixed;inset:0;z-index:70;background:rgba(0,0,0,.85);display:grid;place-items:center;padding:20px;cursor:zoom-out}.lightbox img{max-width:100%;max-height:100%;border-radius:10px}

@media (max-width:1100px){.app.with-panel{grid-template-columns:var(--side) minmax(0,1fr)}.panel{position:fixed;inset:0 0 0 auto;width:min(100%,720px);z-index:40;box-shadow:-30px 0 80px -30px #000}}
@media (max-width:820px){
  .app,.app.with-panel,.app.side-collapsed{grid-template-columns:minmax(0,1fr)}
  .side{position:fixed;inset:0 auto 0 0;width:min(86vw,320px);z-index:45;transform:translateX(-102%);transition:transform .2s;box-shadow:30px 0 80px -30px #000}
  .app.side-open .side{transform:none}.only-mobile{display:inline-grid}
  .top-actions .ghost{display:none}.composer{width:calc(100% - 16px);border-radius:18px}
  .controls{flex-wrap:wrap}.thread{padding:8px 12px 20px}.msg.user .bubble{max-width:92%}
  .panel{width:100%}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}