/* PixelLab panel. Dark, dense, and deliberately quiet — the artwork is the only
   thing on screen that should be colourful. */

:root {
  --bg:      #0f0e15;
  --panel:   #17161f;
  --panel-2: #1e1c28;
  --line:    #2c2937;
  --text:    #e6e3ef;
  --dim:     #9b95ad;
  --faint:   #6a6579;
  --accent:  #6dc2ca;
  --accent-2:#d04649;
  --ok:      #6abe30;
  --warn:    #d9a066;
  --err:     #d95763;
  --radius:  10px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; color: inherit; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }

/* ---- gate ---------------------------------------------------------------- */

.gate {
  max-width: 360px; margin: 18vh auto; padding: 0 20px; text-align: center;
}
.gate h1 { margin: 0 0 6px; font-size: 28px; letter-spacing: -0.02em; }
.gate .sub { margin: 0 0 22px; color: var(--dim); }
.gate form { display: flex; flex-direction: column; gap: 10px; }
.gate .hint { margin-top: 18px; color: var(--faint); font-size: 12.5px; line-height: 1.6; }
.gate .err { color: var(--err); margin-top: 12px; }

input[type=password], input[type=text], input[type=number], textarea, select {
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px;
  padding: 9px 11px; width: 100%; outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 76px; line-height: 1.55; }

button {
  background: var(--accent); color: #08131a; border: 0; border-radius: 8px;
  padding: 9px 14px; cursor: pointer; font-weight: 600;
}
button:hover { filter: brightness(1.08); }
button:disabled { opacity: .45; cursor: not-allowed; filter: none; }
button.ghost {
  background: transparent; color: var(--dim); border: 1px solid var(--line); font-weight: 500;
}
button.ghost:hover { color: var(--text); border-color: var(--faint); }
button.danger { background: transparent; color: var(--err); border: 1px solid var(--line); font-weight: 500; }

/* ---- chrome -------------------------------------------------------------- */

.top {
  display: flex; align-items: center; gap: 16px;
  padding: 10px 18px; border-bottom: 1px solid var(--line); background: var(--panel);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; letter-spacing: -0.01em; }
.top nav { display: flex; gap: 4px; }
.tab {
  background: transparent; color: var(--dim); font-weight: 500;
  padding: 6px 12px; border-radius: 7px;
}
.tab:hover { color: var(--text); }
.tab.on { background: var(--panel-2); color: var(--text); }
.spend { margin-left: auto; color: var(--faint); font-size: 12.5px; font-family: var(--mono); }

main { padding: 22px 18px 60px; max-width: 1180px; margin: 0 auto; }
.view[hidden] { display: none; }

h2 { font-size: 17px; margin: 0 0 4px; letter-spacing: -0.01em; }
.lede { color: var(--dim); margin: 0 0 18px; }

/* ---- forms --------------------------------------------------------------- */

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px;
}
.field { margin-bottom: 14px; }
.field > label { display: block; margin-bottom: 6px; color: var(--dim); font-size: 12.5px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row > .field { flex: 1 1 150px; margin-bottom: 0; }

.seg { display: flex; gap: 4px; flex-wrap: wrap; }
.seg button {
  background: var(--panel-2); color: var(--dim); border: 1px solid var(--line);
  font-weight: 500; padding: 7px 12px;
}
.seg button.on { background: var(--accent); color: #08131a; border-color: var(--accent); font-weight: 600; }

.actions { display: flex; gap: 10px; align-items: center; margin-top: 18px; }
.est { color: var(--faint); font-size: 12.5px; font-family: var(--mono); }
.note { color: var(--warn); font-size: 12.5px; margin-top: 10px; }

/* ---- gallery ------------------------------------------------------------- */

.grid-cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.pcard {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; cursor: pointer; transition: border-color .12s;
}
.pcard:hover { border-color: var(--faint); }
.pcard .thumb {
  aspect-ratio: 1; display: grid; place-items: center; background: var(--panel-2);
  /* Checkerboard, so transparency reads as transparency and not as white. */
  background-image:
    linear-gradient(45deg, #201e2a 25%, transparent 25%, transparent 75%, #201e2a 75%),
    linear-gradient(45deg, #201e2a 25%, transparent 25%, transparent 75%, #201e2a 75%);
  background-size: 16px 16px; background-position: 0 0, 8px 8px;
}
.pcard .thumb img { width: 100%; height: 100%; object-fit: contain; image-rendering: pixelated; }
.pcard .meta { padding: 10px 11px; }
.pcard .meta b { display: block; font-weight: 600; font-size: 13px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pcard .meta span { color: var(--faint); font-size: 12px; font-family: var(--mono); }

.chip {
  display: inline-block; padding: 1px 7px; border-radius: 999px;
  font-size: 11px; font-family: var(--mono); border: 1px solid var(--line); color: var(--dim);
}
.chip.run  { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.chip.ok   { color: var(--ok); }
.chip.err  { color: var(--err); }
.chip.warn { color: var(--warn); }

.empty { color: var(--faint); text-align: center; padding: 60px 20px; }

/* ---- piece view ---------------------------------------------------------- */

.piece-wrap { display: grid; gap: 18px; grid-template-columns: minmax(0, 1fr) 320px; align-items: start; }
@media (max-width: 900px) { .piece-wrap { grid-template-columns: 1fr; } }

.stage-box {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; display: grid; place-items: center; min-height: 320px; position: relative;
}
.stage {
  position: relative; line-height: 0;
  background-image:
    linear-gradient(45deg, #201e2a 25%, transparent 25%, transparent 75%, #201e2a 75%),
    linear-gradient(45deg, #201e2a 25%, transparent 25%, transparent 75%, #201e2a 75%);
  background-size: 16px 16px; background-position: 0 0, 8px 8px;
  border: 1px solid var(--line);
}
.stage canvas { display: block; image-rendering: pixelated; }
.stage canvas.overlay { position: absolute; inset: 0; cursor: crosshair; }

.toolbar { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar button { padding: 6px 10px; }

.swatches { display: flex; flex-wrap: wrap; gap: 6px; }
.sw {
  width: 30px; height: 30px; border-radius: 6px; border: 2px solid transparent;
  cursor: pointer; padding: 0; position: relative;
}
.sw.on { border-color: var(--text); }
.sw.eraser {
  background-image:
    linear-gradient(45deg, #2a2836 25%, transparent 25%, transparent 75%, #2a2836 75%),
    linear-gradient(45deg, #2a2836 25%, transparent 25%, transparent 75%, #2a2836 75%);
  background-size: 12px 12px; background-position: 0 0, 6px 6px;
  background-color: var(--panel-2);
}

.side .card + .card { margin-top: 14px; }
.side h3 { font-size: 13px; margin: 0 0 10px; color: var(--dim); font-weight: 600;
  text-transform: uppercase; letter-spacing: .06em; }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: 12.5px; }
.kv dt { color: var(--faint); }
.kv dd { margin: 0; font-family: var(--mono); }

.events { font-family: var(--mono); font-size: 11.5px; line-height: 1.7;
  max-height: 260px; overflow-y: auto; }
.events div { color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.events .tool { color: var(--accent); }
.events .say  { color: var(--text); white-space: normal; }
.events .done { color: var(--ok); white-space: normal; }

pre.source {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 12px; overflow: auto; max-height: 340px;
  font-family: var(--mono); font-size: 11.5px; line-height: 1.55; margin: 0;
}

.filmstrip { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; }
.filmstrip .fr {
  width: 72px; height: 72px; flex: 0 0 auto; border: 1px solid var(--line);
  border-radius: 6px; cursor: pointer; background: var(--panel-2);
}
.filmstrip .fr.on { border-color: var(--accent); }

/* ---- toast --------------------------------------------------------------- */

.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px;
  padding: 10px 16px; max-width: min(560px, 92vw); z-index: 100;
  box-shadow: 0 8px 30px rgba(0,0,0,.5);
}
.toast.bad { border-color: color-mix(in srgb, var(--err) 50%, var(--line)); color: var(--err); }