:root {
  --bg: #17130f;
  --bg-2: #201a15;
  --panel: #2a221b;
  --line: #3a2f24;
  --ink: #f4ece1;
  --ink-dim: #b3a493;
  --ink-faint: #7c6f60;
  --accent: #ff5c1a;
  --accent-2: #ffb44a;
  --a: #ff5c1a;
  --b: #37b7a4;
  --c: #d7c04a;
  --d: #8b7be0;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
/* Author display: values (flex) otherwise override the [hidden] attribute. */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: var(--mono);
  background: var(--bg);
  color: var(--ink);
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

/* --- top bar --- */
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 8px; }
.logo {
  background: var(--accent);
  color: #17130f;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}
.title { color: var(--ink-dim); letter-spacing: 3px; text-transform: uppercase; font-size: 11px; }
.meta-line { flex: 1; color: var(--ink-dim); font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.file-btn {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 6px 12px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.file-btn:hover { border-color: var(--accent); color: var(--accent-2); }
.file-btn.big { font-size: 13px; padding: 10px 20px; }

/* --- dropzone --- */
.dropzone {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 120px);
  padding: 40px;
}
.dropzone.drag { background: var(--bg-2); }
.dz-inner { text-align: center; max-width: 460px; }
.dz-inner h1 { font-weight: 600; font-size: 18px; margin-bottom: 8px; }
.dz-inner code { color: var(--accent-2); }
.dz-inner p { color: var(--ink-faint); margin-bottom: 24px; }

/* --- workspace --- */
.workspace { display: flex; flex-direction: column; }
.tabs {
  display: flex;
  gap: 2px;
  padding: 0 12px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}
.tab {
  padding: 10px 14px;
  color: var(--ink-dim);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  font-size: 12px;
}
.tab:hover { color: var(--ink); }
.tab.active { color: var(--accent-2); border-bottom-color: var(--accent); }

.view { padding: 20px; }

/* --- generic panels --- */
.grid { display: grid; gap: 12px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}
.card h3 { margin: 0 0 10px; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--ink-dim); }
.kv { display: flex; justify-content: space-between; padding: 3px 0; border-bottom: 1px dotted var(--line); }
.kv:last-child { border-bottom: 0; }
.kv .k { color: var(--ink-faint); }
.kv .v { color: var(--ink); }

/* --- pad grid --- */
.group-block { margin-bottom: 22px; }
.group-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.group-tag { width: 22px; height: 22px; border-radius: 5px; display: grid; place-items: center; font-weight: 700; color: #17130f; }
.group-tag.a { background: var(--a); } .group-tag.b { background: var(--b); }
.group-tag.c { background: var(--c); } .group-tag.d { background: var(--d); }
.pad-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.pad {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 10px;
  min-height: 74px;
}
.pad.empty { opacity: 0.35; }
.pad .pad-id { font-size: 10px; color: var(--ink-faint); }
.pad .pad-sample { font-size: 12px; color: var(--ink); margin: 3px 0 6px; word-break: break-word; }
.pad .pad-params { display: flex; flex-wrap: wrap; gap: 4px 8px; font-size: 10px; color: var(--ink-dim); }
.pad .chip { color: var(--accent-2); }

/* --- patterns --- */
.pattern-layout { display: grid; grid-template-columns: 190px 1fr; gap: 16px; align-items: start; }
.pattern-list { display: flex; flex-direction: column; gap: 3px; max-height: 78vh; overflow-y: auto; }
.pat-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 7px 10px; border-radius: 5px; cursor: pointer;
  background: var(--panel); border: 1px solid transparent;
}
.pat-item:hover { border-color: var(--line); }
.pat-item.active { border-color: var(--accent); }
.pat-item.muted { opacity: 0.4; }
.pat-item .pn { letter-spacing: 1px; }
.pat-item .pc { font-size: 10px; color: var(--ink-faint); }
.pat-canvas-wrap { background: var(--bg-2); border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow-x: auto; }
canvas { display: block; }
.pat-title { margin: 0 0 10px; font-size: 13px; }
.pat-title .badge { color: var(--ink-faint); font-size: 11px; margin-left: 8px; }

/* --- device / monitor --- */
.dev-bar { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.dev-detail { flex: 1; color: var(--ink-dim); font-size: 11px; }
.pill {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  font-size: 10px; text-transform: uppercase; letter-spacing: 1px;
  background: var(--panel); border: 1px solid var(--line); color: var(--ink-dim);
}
.pill.s-connected { background: #163d2e; border-color: #2f7d5b; color: #7ff0be; }
.pill.s-requesting { background: #3d3616; border-color: #7d6f2f; color: #f0dd7f; }
.pill.s-error, .pill.s-unsupported { background: #3d1616; border-color: #7d2f2f; color: #f09090; }
.pill.s-no-device { background: #2a2a2a; border-color: #555; color: #cbb; }

.dev-cols { display: grid; grid-template-columns: 340px 1fr; gap: 14px; align-items: start; }
@media (max-width: 780px) { .dev-cols { grid-template-columns: 1fr; } }
.dev-left { display: flex; flex-direction: column; gap: 14px; }
.dev-exp .exp-row { display: flex; gap: 6px; margin: 8px 0; flex-wrap: wrap; }
.exp-in {
  background: var(--bg); border: 1px solid var(--line); color: var(--ink);
  font-family: var(--mono); font-size: 11px; padding: 4px 7px; border-radius: 4px; flex: 1; min-width: 0;
}
.exp-val { max-width: 70px; }
.exp-result { font-size: 10px; color: var(--ink-dim); margin-top: 6px; word-break: break-word; min-height: 13px; }
.exp-result.okline { color: #7ff0be; }
.exp-result.errline { color: #f09090; }

.echo-body { display: flex; flex-direction: column; gap: 2px; margin-bottom: 8px; min-height: 40px; }
.echo-row { display: flex; justify-content: space-between; padding: 4px 6px; border-radius: 4px; background: var(--bg-2); }
.echo-k { color: var(--ink-dim); }
.echo-v { color: var(--accent-2); font-weight: 600; }
.echo-v.flash { animation: flash 0.5s ease-out; }
@keyframes flash { from { color: #fff; background: rgba(255,92,26,0.4); } to { background: transparent; } }

.mon-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.mon-head h3 { margin: 0; flex: 1; }
.mon-toggle { font-size: 10px; color: var(--ink-dim); display: flex; align-items: center; gap: 3px; }
.mini-btn {
  background: var(--bg-2); border: 1px solid var(--line); color: var(--ink-dim);
  font-size: 10px; padding: 3px 8px; border-radius: 4px; cursor: pointer; font-family: var(--mono);
}
.mini-btn:hover { border-color: var(--accent); color: var(--accent-2); }
.mini-btn.on { border-color: var(--accent); color: var(--accent-2); }
.mon-log {
  height: 60vh; overflow-y: auto; background: var(--bg); border: 1px solid var(--line);
  border-radius: 6px; padding: 6px; font-size: 11px;
}
.mon-row { display: flex; gap: 8px; padding: 2px 4px; border-bottom: 1px dotted var(--line); white-space: nowrap; }
.mon-row.out { background: rgba(255,92,26,0.06); }
.mon-t { color: var(--ink-faint); }
.mon-dir { color: var(--ink-dim); width: 42px; }
.mon-row.out .mon-dir { color: var(--accent-2); }
.mon-hex { color: var(--b); overflow: hidden; text-overflow: ellipsis; }
.mon-json { color: var(--accent-2); }
.mon-cmd { color: var(--ink-faint); }

.hint { color: var(--ink-faint); font-size: 11px; margin-top: 10px; }
.section-title { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--ink-dim); margin: 0 0 12px; }