/* TensorFlow Playground. Colours, fonts and the header come from db/play.css (light, dark and auto themes). */
.tp{padding-bottom:20px}
.tp-app{display:flex;flex-direction:column;gap:14px}
.tp-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;min-width:0}
.tp-ph{display:flex;align-items:center;justify-content:space-between;gap:8px 12px;flex-wrap:wrap;margin-bottom:10px}
.tp-ph h2,.tp-ph h3{margin:0;font:600 17px/1.2 var(--f-display);color:var(--ink);display:flex;align-items:center;gap:8px}
.tp-ph h3{font-size:15px}
.tp-step{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font:600 12px/1 var(--f-body)}
.tp-note{color:var(--muted);font-size:12.5px}
.tp-row{display:flex;align-items:center;gap:8px 14px;flex-wrap:wrap}
.grow{flex:1}
.tp-hide{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.tp-lbl{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2)}
.tp select,.tp input[type=number],.tp textarea{background:var(--surface-2);border:1px solid var(--line-strong);border-radius:7px;padding:6px 8px;font-size:13.5px;color:var(--ink);max-width:100%}
.tp input[type=number]{width:84px}
.tp select:disabled,.tp input:disabled{opacity:.6}
.tp-btn{appearance:none;display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-strong);background:var(--surface-2);color:var(--ink);border-radius:8px;padding:7px 13px;font-size:13.5px;font-weight:600;cursor:pointer;white-space:nowrap;user-select:none}
.tp-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.tp-btn:disabled,.tp-btn[aria-disabled=true],.tp-btn.tp-off{opacity:.5;cursor:not-allowed;pointer-events:none}
.tp-btn.tp-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.tp-btn.tp-primary:hover:not(:disabled){filter:brightness(1.08);color:var(--accent-ink)}
.tp-btn.tp-sm{padding:4px 9px;font-size:12.5px}
.tp-go{min-width:118px;justify-content:center;font-size:14.5px;padding:9px 18px}
.tp-go.tp-stop{background:var(--err-bg);border-color:var(--err-ink);color:var(--err-ink)}
.tp-msg{font-size:13px;color:var(--ink-2);margin:8px 0 0;min-height:0}
.tp-msg:empty{display:none}
.tp-msg.err{color:var(--err-ink);background:var(--err-bg);padding:7px 10px;border-radius:7px}
.tp-msg.warn{color:var(--ink-2);background:var(--accent-soft);padding:7px 10px;border-radius:7px}

/* play.css styles every table as a SQL result grid; tables here are ordinary text */
.tp table{font:inherit;min-width:0}
.tp th,.tp td{white-space:normal;max-width:none;overflow:visible;position:static;background:none}
.tp tbody tr:hover td:not(.rn){background:none}

/* 1 data */
.tp-data{transition:box-shadow .15s}
.tp-data.drag{box-shadow:0 0 0 3px var(--accent)}
.tp-src{display:flex;align-items:center;gap:8px 12px;flex-wrap:wrap}
.tp-or{color:var(--muted);font-size:13px}
.tp-src .tp-lbl{min-width:0;max-width:100%}
.tp-src select{min-width:0;max-width:min(360px,100%)}
.tp-paste{margin-top:10px;display:flex;flex-direction:column;gap:8px}
.tp-paste textarea{width:100%;min-height:130px;font:12.5px/1.5 var(--f-mono);resize:vertical}
.tp-cols-wrap{margin-top:12px;overflow:auto;max-height:330px;border:1px solid var(--line);border-radius:8px}
.tp-cols{width:100%;border-collapse:collapse;font-size:13px}
.tp .tp-cols th,.tp .tp-cols td{padding:6px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle;white-space:nowrap}
.tp .tp-cols thead th{position:sticky;top:0;background:var(--surface-2);font-weight:600;color:var(--ink-2);z-index:1}
.tp .tp-cols tbody th{font-weight:600;color:var(--ink);max-width:220px;overflow:hidden;text-overflow:ellipsis}
.tp .tp-cols td:nth-child(4){white-space:normal;min-width:180px}
.tp .tp-cols tr.r-target th,.tp .tp-cols tr.r-target td{background:var(--accent-soft)}
.tp-cols tr.r-ignore th,.tp-cols tr.r-ignore td:nth-child(3),.tp-cols tr.r-ignore td:nth-child(4),.tp-cols tr.r-ignore td:nth-child(5){opacity:.55}
.tp-cols select{padding:3px 6px;font-size:12.5px}
.tp-flag{display:inline-block;margin-left:6px;padding:0 6px;border-radius:99px;border:1px solid var(--line-strong);font:600 10.5px/1.6 var(--f-body);color:var(--muted);cursor:help;vertical-align:1px}
.tp-opts{margin-top:12px}

/* pictures */
.tp-viz{display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:14px}
.tp-pane{display:flex;flex-direction:column}
.tp-pane canvas{width:100%;aspect-ratio:1.08;display:block;border-radius:6px}
.tp-axes{display:inline-flex;align-items:center;gap:5px;flex-wrap:wrap}
.tp-axes select,.tp-pane .tp-ph>select{padding:3px 6px;font-size:12.5px;max-width:150px}
.tp-legend{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;margin-top:8px;font-size:12px;color:var(--ink-2)}
.tp-legend span{display:inline-flex;align-items:center;gap:5px}
.tp-dot{display:inline-block;width:9px;height:9px;border-radius:50%;flex:none;margin-right:4px;vertical-align:0}
.tp-legend .tp-dot{margin-right:0}
.tp-ring{background:none!important;border:1.6px solid var(--ink-2);width:9px;height:9px}
.tp-sw{display:inline-block;width:16px;height:3px;border-radius:2px}
.tp-sw-pos{background:#3b82f6}.tp-sw-neg{background:#f97316}
.tp-sw-train{background:repeating-linear-gradient(90deg,var(--muted) 0 5px,transparent 5px 8px)}
.tp-sw-val{background:var(--accent)}
.tp-sw-line{background:var(--ink)}
.tp-ramp{display:inline-block;width:70px;height:9px;border-radius:3px;background:linear-gradient(90deg,#440154,#3b528b,#21918c,#5ec962,#fde725)}
.tp-layers{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:8px}
.tp-layer{display:inline-flex;align-items:center;border:1px solid var(--line-strong);border-radius:99px;background:var(--surface-2);overflow:hidden}
.tp-layer b{min-width:30px;text-align:center;font-size:13px}
.tp-layer button{appearance:none;border:0;background:none;color:var(--ink-2);width:26px;height:26px;cursor:pointer;font-size:15px}
.tp-layer button:hover:not(:disabled){color:var(--accent);background:var(--accent-soft)}
.tp-layer button:disabled{opacity:.4;cursor:not-allowed}
.tp-lbtns{display:inline-flex;gap:6px;margin-left:auto}

/* 2 train */
.tp-settings{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px 16px}
.tp-settings .tp-lbl{justify-content:space-between}
.tp-settings select,.tp-settings input{width:118px}
.tp-bar{display:flex;align-items:center;gap:10px 18px;flex-wrap:wrap;margin-top:14px}
.tp-metric{display:flex;flex-direction:column;min-width:84px}
.tp-metric small{font-size:11.5px;color:var(--muted)}
.tp-metric strong{font:600 18px/1.25 var(--f-mono);color:var(--ink);font-variant-numeric:tabular-nums}
.tp-base strong{color:var(--muted)}
.tp-progress{height:5px;background:var(--surface-2);border-radius:99px;overflow:hidden;margin-top:12px}
.tp-progress div{height:100%;width:0;background:var(--accent);transition:width .12s}
.tp-charts{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:12px}
.tp-charts figure{margin:0;min-width:0}
.tp-charts figcaption{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:4px}
.tp-charts canvas{width:100%;aspect-ratio:2.6;display:block}

/* 3-5 results, predict, export */
.tp-results{display:grid;grid-template-columns:1.1fr .9fr 1.2fr;gap:14px;align-items:start}
.tp-empty{color:var(--muted);font-size:13.5px;margin:4px 0}
.tp-big{display:flex;gap:10px 20px;flex-wrap:wrap;margin-bottom:12px}
.tp-big div{display:flex;flex-direction:column}
.tp-big small{font-size:11.5px;color:var(--muted)}
.tp-big b{font:600 22px/1.2 var(--f-mono);color:var(--ink)}
.tp-big div:first-child b{color:var(--accent)}
.tp-tbl{border-collapse:collapse;font-size:13px;width:100%;margin-bottom:8px}
.tp-tbl th,.tp-tbl td{padding:5px 8px;border-bottom:1px solid var(--line);text-align:right;font-variant-numeric:tabular-nums}
.tp-tbl th:first-child{text-align:left;font-weight:600;color:var(--ink-2)}
.tp-tbl thead th{color:var(--muted);font-weight:600;font-size:12px}
.tp-per th:first-child{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tp-cm-wrap{overflow:auto;margin-bottom:10px}
.tp-cm{border-collapse:separate;border-spacing:3px;font-size:12.5px}
.tp-cm caption{text-align:left;font-size:12px;color:var(--muted);padding-bottom:4px;caption-side:top}
.tp-cm th{font-weight:600;color:var(--ink-2);padding:3px 6px;text-align:left;white-space:nowrap}
.tp-cm thead th{text-align:center;font-size:11.5px}
.tp .tp-cm td{min-width:44px;text-align:center;padding:7px 6px;border-radius:5px;font:600 13px var(--f-mono);color:var(--ink);background:color-mix(in srgb,var(--line) 50%,transparent)}
.tp .tp-cm td.ok{background:color-mix(in srgb,var(--accent) calc(var(--a) * 70% + 8%),var(--surface))}
.tp .tp-cm td.bad{background:color-mix(in srgb,#ef4444 calc(var(--a) * 70% + 10%),var(--surface))}
.tp-warnline{margin-top:6px;color:var(--ink-2)}
.tp-pform{display:grid;grid-template-columns:1fr;gap:7px;max-height:300px;overflow:auto;padding-right:4px}
.tp-pform .tp-lbl{justify-content:space-between}
.tp-pform .tp-lbl span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:48%}
.tp-pform input,.tp-pform select{width:52%}
.tp-pout{margin-top:12px}
.tp-answer{display:flex;flex-direction:column;gap:2px;margin-bottom:8px}
.tp-answer small{font-size:11.5px;color:var(--muted)}
.tp-answer b{font:600 22px/1.25 var(--f-mono);color:var(--ink);display:flex;align-items:center;gap:4px;word-break:break-word}
.tp-prob{display:grid;grid-template-columns:minmax(60px,34%) 1fr 54px;align-items:center;gap:8px;font-size:12.5px;margin:4px 0}
.tp-prob span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-2)}
.tp-prob b{text-align:right;font:600 12.5px var(--f-mono)}
.tp-pbar{height:9px;background:var(--surface-2);border-radius:99px;overflow:hidden}
.tp-pbar i{display:block;height:100%;border-radius:99px}
.tp-batch{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);display:flex;flex-direction:column;align-items:flex-start;gap:6px}
.tp-exports{margin-bottom:12px}
.tp-tabs{display:flex;align-items:center;gap:4px;border-bottom:1px solid var(--line);margin-bottom:0;flex-wrap:wrap}
.tp-tabs [role=tab]{appearance:none;border:0;background:none;color:var(--ink-2);padding:7px 10px;font-size:13px;font-weight:600;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}
.tp-tabs [role=tab][aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent)}
.tp-code{margin:0;background:var(--code-bg);border:1px solid var(--line);border-top:0;border-radius:0 0 8px 8px;padding:12px;font:12px/1.6 var(--f-mono);color:var(--ink);overflow:auto;max-height:380px;white-space:pre}
.tp-toast{position:fixed;left:50%;bottom:22px;transform:translate(-50%,20px);background:var(--ink);color:var(--bg);padding:9px 16px;border-radius:9px;font-size:13.5px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50}
.tp-toast.on{opacity:1;transform:translate(-50%,0)}

/* about */
.tp-flow{counter-reset:s;list-style:none;padding:0;margin:0 0 14px;display:grid;gap:8px}
.tp-flow li{counter-increment:s;display:grid;grid-template-columns:28px 1fr;gap:2px 10px;align-items:baseline}
.tp-flow li::before{content:counter(s);grid-row:span 2;display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font:600 12px var(--f-body)}
.tp-flow b{color:var(--ink)}
.about table{border-collapse:collapse;font-size:13.5px;margin:6px 0 14px;width:100%}
.about th,.about td{border-bottom:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
.about th{color:var(--ink);font-weight:600}
.about pre{background:var(--code-bg);border:1px solid var(--line);border-radius:8px;padding:10px 12px;font:12.5px/1.55 var(--f-mono);overflow:auto;color:var(--ink)}
.about code{font:12.5px var(--f-mono)}
.gl dt{font-weight:600;color:var(--ink);margin-top:8px}
.gl dd{margin:2px 0 0}

@media (max-width:1180px){
  .tp-viz{grid-template-columns:1fr 1fr}
  .tp-viz .tp-pane:nth-child(2){grid-column:span 2;order:3}
  .tp-viz .tp-pane:nth-child(2) canvas{aspect-ratio:2.2}
  .tp-settings{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tp-results{grid-template-columns:1fr 1fr}
  .tp-results>.tp-card:last-child{grid-column:span 2}
}
@media (max-width:720px){
  .wrap.tp{padding-inline:12px}
  .tp-card{padding:12px}
  .tp-viz,.tp-results,.tp-charts{grid-template-columns:1fr}
  .tp-viz .tp-pane:nth-child(2){grid-column:auto;order:0}
  .tp-viz .tp-pane:nth-child(2) canvas{aspect-ratio:1.3}
  .tp-results>.tp-card:last-child{grid-column:auto}
  .tp-settings{grid-template-columns:1fr 1fr;gap:8px 10px}
  .tp-settings .tp-lbl{flex-direction:column;align-items:stretch;gap:3px}
  .tp-settings select,.tp-settings input{width:100%}
  .tp-drop-hint{display:none}
  .tp-src .tp-lbl{flex:1 1 100%}
  .tp-src select{flex:1;max-width:none;width:100%}
  .tp-app,.tp-card{max-width:100%}
  .tp-metric{min-width:70px}
  .tp-metric strong{font-size:15px}
  .tp-bar{gap:8px 12px}
  .tp-charts canvas{aspect-ratio:2.1}
}
.tp-intro{max-width:900px;margin:0 0 16px;color:var(--ink-2);font-size:15px}
.tp-intro p{margin:0 0 8px}
.tp-intro b{color:var(--ink);font-weight:600}
.tp-examples{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;margin-top:10px!important}
.tp-examples span{font-size:13px;color:var(--muted)}