/* LogicForge — dark technical theme inspired by oscilloscopes & breadboards */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --bg: #0b0f14;
  --bg-2: #11161d;
  --bg-3: #161d27;
  --panel: #0f141b;
  --line: #1f2a37;
  --line-2: #2a3849;
  --text: #d6e0ee;
  --text-dim: #8ea0b8;
  --text-faint: #5a6a82;
  --accent: #4ade80;       /* signal green */
  --accent-2: #22d3ee;     /* cyan */
  --warn: #fbbf24;
  --bad: #f87171;
  --hi: #fde047;
  --wire-on: #4ade80;
  --wire-off: #2f4055;
  --pin-in: #60a5fa;
  --pin-out: #4ade80;
  --selection: #fde047;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; overflow: hidden;
  font-family: 'Space Grotesk', system-ui, sans-serif; color: var(--text);
  background: var(--bg);
}

#app {
  display: grid;
  grid-template-rows: 52px 1fr 24px;
  height: 100vh;
}

/* ===== TOP BAR ===== */
#topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 0 14px;
  background: linear-gradient(180deg, #11171f, #0c1117);
  border-bottom: 1px solid var(--line);
  z-index: 5;
}
.brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; letter-spacing: 0.02em;
  font-size: 16px;
}
.brand .bolt {
  color: var(--accent);
  filter: drop-shadow(0 0 6px var(--accent));
  font-size: 18px;
}
.toolbar { display: flex; align-items: center; gap: 6px; flex: 1; flex-wrap: wrap;}
.toolbar button {
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  color: var(--text);
  padding: 6px 11px;
  border-radius: 6px;
  cursor: pointer;
  font: inherit;
  font-size: 12.5px;
  transition: all 0.12s;
}
.toolbar button:hover { background: #1d2735; border-color: #34465c; }
.toolbar button.primary { background: var(--accent); color: #051a0c; border-color: var(--accent); font-weight: 600;}
.toolbar button.primary:hover { background: #6ee598; }
.toolbar button.active { background: var(--accent); color: #051a0c; border-color: var(--accent);}
.toolbar .sep { width: 1px; height: 22px; background: var(--line); margin: 0 4px; }
.toolbar .speed {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--text-dim);
}
.toolbar .speed input { width: 80px; }
#clock-hz { font-family: 'JetBrains Mono', monospace; color: var(--accent-2); min-width: 40px; }

/* ===== MAIN ===== */
#main { display: grid; grid-template-columns: 240px 1fr 280px; min-height: 0; }

/* ===== PALETTE ===== */
#palette {
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.palette-head { padding: 8px; border-bottom: 1px solid var(--line); }
#palette-search {
  width: 100%; padding: 7px 10px;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  border-radius: 6px;
  color: var(--text); font: inherit; font-size: 12.5px;
}
#palette-search:focus { outline: none; border-color: var(--accent-2); }
#palette-list { overflow-y: auto; flex: 1; padding: 4px 0 30px; }

.palette-cat {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--text-faint);
  padding: 12px 12px 4px;
  font-weight: 700;
}
.palette-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 12.5px;
  transition: background 0.08s;
  border-left: 2px solid transparent;
}
.palette-item:hover { background: rgba(74,222,128,0.06); border-left-color: var(--accent); }
.palette-item.selected { background: rgba(74,222,128,0.12); border-left-color: var(--accent); }
.palette-item .swatch {
  width: 18px; height: 12px; border-radius: 2px;
  background: #3a4a5e;
  border: 1px solid #4a5e75;
  flex-shrink: 0;
}
.palette-item .ico { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--text-dim); }
.palette-item .chip-mark { color: var(--accent-2); font-size: 10px; margin-left: auto;}

/* ===== CANVAS ===== */
#canvas-wrap { position: relative; overflow: hidden; background:
  radial-gradient(ellipse at center, #11181f 0%, #070a0e 100%);
}
#canvas { display: block; width: 100%; height: 100%; cursor: default; }

#hint {
  position: absolute; left: 50%; top: 16px; transform: translateX(-50%);
  background: rgba(15,20,27,0.94);
  border: 1px solid var(--line-2);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-dim);
  pointer-events: none;
  max-width: 80%;
  text-align: center;
  backdrop-filter: blur(6px);
}
#hint strong { color: var(--text); font-weight: 600; }
#hint kbd {
  background: #1a2330; border: 1px solid var(--line-2); border-bottom-width: 2px;
  padding: 1px 6px; border-radius: 3px; font-family: 'JetBrains Mono', monospace; font-size: 10px;
}
#hint .pin { color: var(--pin-out); font-size: 10px; }
#hint .pin.in { color: var(--pin-in); }
#hint.hidden { display: none; }

#ghost { position: absolute; pointer-events: none; opacity: 0.6; }

/* ===== INSPECTOR ===== */
#inspector {
  background: var(--panel);
  border-left: 1px solid var(--line);
  padding: 12px;
  overflow-y: auto;
}
#inspector h3 {
  margin: 0 0 12px; font-size: 12px; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--text-faint); font-weight: 700;
}
#inspector .empty { color: var(--text-faint); font-size: 12px; }
.insp-row { margin-bottom: 10px; font-size: 12px; }
.insp-row label { display: block; color: var(--text-dim); margin-bottom: 4px; font-size: 11px; }
.insp-row input, .insp-row textarea, .insp-row select {
  width: 100%; padding: 6px 8px;
  background: var(--bg-3); border: 1px solid var(--line-2);
  color: var(--text); font: inherit; font-size: 12px; border-radius: 4px;
}
.insp-row input:focus, .insp-row select:focus, .insp-row textarea:focus {
  outline: none; border-color: var(--accent-2);
}
.insp-row textarea { font-family: 'JetBrains Mono', monospace; min-height: 80px; resize: vertical; }
.insp-meta { font-family: 'JetBrains Mono', monospace; color: var(--text-faint); font-size: 11px; margin-bottom: 12px;}
.insp-actions { display: flex; gap: 6px; margin-top: 12px; }
.insp-actions button {
  flex: 1; padding: 6px 8px; border-radius: 4px; cursor: pointer;
  background: var(--bg-3); border: 1px solid var(--line-2); color: var(--text); font: inherit; font-size: 12px;
}
.insp-actions button.danger { background: #2a1518; border-color: #5b2230; color: #fda4af; }
.insp-actions button.danger:hover { background: #3a1d22; }

/* ===== STATUS ===== */
#statusbar {
  display: flex; justify-content: space-between; align-items: center;
  background: #080c11;
  background: #080c11;
  border-top: 1px solid var(--line);
  padding: 0 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-faint);
}
#status.run { color: var(--accent); }
#stats { color: var(--text-dim); }

/* ===== MODAL ===== */
#modal-bg {
  position: fixed; inset: 0;
  background: rgba(5,8,12,0.78);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
}
#modal-bg.hidden { display: none; }
#modal {
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: 8px;
  width: 90%; max-width: 520px;
  padding: 20px;
  box-shadow: 0 20px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(74,222,128,0.04);
}
#modal h3 { margin: 0 0 14px; font-size: 16px; }
#modal-body { font-size: 13px; color: var(--text-dim); margin-bottom: 16px; }
#modal-body input, #modal-body select, #modal-body textarea {
  width: 100%; padding: 8px 10px; margin-top: 4px;
  background: var(--bg-3); border: 1px solid var(--line-2);
  color: var(--text); font: inherit; border-radius: 4px;
}
#modal-body label { display: block; margin-bottom: 8px; color: var(--text); font-size: 12px; }
#modal-body .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
#modal-actions { display: flex; gap: 8px; justify-content: flex-end; }
#modal-actions button {
  padding: 8px 16px; border-radius: 5px; cursor: pointer;
  background: var(--bg-3); border: 1px solid var(--line-2); color: var(--text); font: inherit;
}
#modal-actions button.primary {
  background: var(--accent); color: #051a0c; border-color: var(--accent); font-weight: 600;
}
#modal-actions button.primary:hover { background: #6ee598; }
#modal-actions button.danger { background: #3a1d22; border-color: #5b2230; color: #fda4af; }

.chip-list { max-height: 300px; overflow-y: auto; border: 1px solid var(--line-2); border-radius: 6px; }
.chip-list-item {
  display: flex; align-items: center; padding: 8px 12px;
  border-bottom: 1px solid var(--line);
}
.chip-list-item:last-child { border-bottom: none; }
.chip-list-item .name { flex: 1; font-weight: 500; }
.chip-list-item .meta { color: var(--text-faint); font-family: 'JetBrains Mono', monospace; font-size: 11px; margin-right: 12px; }
.chip-list-item button {
  background: var(--bg-3); border: 1px solid var(--line-2); color: var(--text);
  padding: 4px 10px; font-size: 11px; border-radius: 4px; cursor: pointer; margin-left: 4px;
}
.chip-list-item button.del { color: #fda4af; }

/* ===== SCROLLBARS ===== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #3a4a5e; }

/* selection */
::selection { background: var(--accent); color: #051a0c;}