*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:      #0d0d16;
  --card:    #171726;
  --card2:   #1e1e32;
  --border:  #2c2c48;
  --text:    #e0e0f4;
  --dim:     #6868a0;
  --accent:  #8b7cf8;
  --r:       #ff5f5f;
  --g:       #4ddd88;
  --b:       #5599ff;
  --gold:    #ffc940;
  --orange:  #ff7040;
  --green:   #4ddd88;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Courier New', monospace;
  min-height: 100vh;
}

/* ── HEADER ── */
header {
  padding: 16px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
header h1 { font-size: 1.05em; letter-spacing: 3px; color: var(--accent); text-transform: uppercase; }
.header-hint { font-size: 0.72em; color: var(--dim); }

/* ── CONTROLS ── */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 14px 24px;
  background: var(--card2);
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.cg { display: flex; align-items: center; gap: 8px; }
.cg label { font-size: 0.72em; text-transform: uppercase; letter-spacing: 1px; color: var(--dim); white-space: nowrap; }

input[type=range] { accent-color: var(--accent); width: 100px; cursor: pointer; }
.val-badge {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 0.82em;
  min-width: 28px;
  text-align: center;
}

input[type=text] {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.88em;
  width: 200px;
  outline: none;
  transition: border-color .2s;
}
input[type=text]:focus { border-color: var(--accent); }

.ch-btns { display: flex; gap: 5px; }
.ch-btn {
  padding: 5px 12px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--dim);
  cursor: pointer;
  font-family: monospace;
  font-size: 0.82em;
  transition: all .15s;
  user-select: none;
}
.ch-btn.on-r { background: rgba(255,95,95,.15); border-color: var(--r); color: var(--r); }
.ch-btn.on-g { background: rgba(77,221,136,.15); border-color: var(--g); color: var(--g); }
.ch-btn.on-b { background: rgba(85,153,255,.15); border-color: var(--b); color: var(--b); }

.btn {
  padding: 6px 14px;
  border-radius: 5px;
  border: 1px solid var(--accent);
  background: rgba(139,124,248,.12);
  color: var(--accent);
  cursor: pointer;
  font-family: monospace;
  font-size: 0.82em;
  transition: background .15s;
}
.btn:hover { background: rgba(139,124,248,.25); }

.lang-select {
  padding: 4px 8px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--card2);
  color: var(--dim);
  cursor: pointer;
  font-family: monospace;
  font-size: 0.78em;
  letter-spacing: 1px;
  outline: none;
  transition: border-color .15s, color .15s;
}
.lang-select:hover, .lang-select:focus { border-color: var(--accent); color: var(--accent); }

/* ── LEGEND ── */
.legend {
  display: flex;
  gap: 20px;
  padding: 8px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.li { display: flex; align-items: center; gap: 6px; font-size: 0.7em; color: var(--dim); }
.lb {
  width: 14px; height: 16px;
  border-radius: 2px;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px;
}
.lb.plain  { background: rgba(255,255,255,.05); color: #6868a0; }
.lb.avail  { background: rgba(255,201,64,.18);  color: var(--gold);   border: 1px solid rgba(255,201,64,.4); }
.lb.change { background: rgba(255,112,64,.25);  color: var(--orange); border: 1px solid rgba(255,112,64,.5); }
.lb.same   { background: rgba(77,221,136,.18);  color: var(--green);  border: 1px solid rgba(77,221,136,.4); }

/* ── MAIN GRID ── */
.main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  padding: 14px;
}
@media (max-width: 860px) { .main { grid-template-columns: 1fr; } }

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.panel-head {
  padding: 10px 16px;
  background: var(--card2);
  border-bottom: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
.panel-title { font-size: 0.78em; text-transform: uppercase; letter-spacing: 2px; color: var(--accent); }
.panel-sub   { font-size: 0.68em; color: var(--dim); }

.px-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px;
  min-height: 60px;
}

/* ── PIXEL CARD ── */
.px-card {
  width: 196px;
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color .2s, transform .1s;
}
.px-card:hover { border-color: var(--accent); transform: translateY(-1px); }

.px-swatch {
  width: 100%; height: 68px;
  position: relative;
  transition: background-color .35s ease;
}
.px-swatch.clickable { cursor: pointer; }
.px-swatch.clickable::after {
  content: '✎';
  position: absolute;
  top: 6px; right: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.55);
  text-shadow: 0 1px 4px rgba(0,0,0,.9);
  opacity: 0;
  transition: opacity .2s;
}
.px-swatch.clickable:hover::after { opacity: 1; }

.px-idx {
  position: absolute; top: 5px; left: 7px;
  font-size: 0.65em;
  background: rgba(0,0,0,.55);
  color: rgba(255,255,255,.85);
  padding: 1px 5px;
  border-radius: 3px;
}
.px-hex {
  position: absolute; bottom: 6px; left: 50%; transform: translateX(-50%);
  font-size: 0.7em;
  background: rgba(0,0,0,.65);
  color: #fff;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 1px;
  white-space: nowrap;
}

.px-body { padding: 7px 7px 6px; }

.bit-row {
  display: flex; align-items: center; gap: 3px;
  margin-bottom: 3px;
}
.bl { font-size: 0.7em; font-weight: bold; width: 10px; flex-shrink: 0; }
.bl.r { color: var(--r); }
.bl.g { color: var(--g); }
.bl.b { color: var(--b); }

.bits { display: flex; gap: 1px; }

.bit {
  width: 13px; height: 16px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 2px;
  font-size: 10.5px;
  background: rgba(255,255,255,.04);
  color: #5858a0;
  flex-shrink: 0;
  transition: background .25s, color .25s;
}
.bit.avail  { background: rgba(255,201,64,.18);  color: var(--gold);   border: 1px solid rgba(255,201,64,.35); }
.bit.change { background: rgba(255,112,64,.28);  color: var(--orange); border: 1px solid rgba(255,112,64,.5);  }
.bit.same   { background: rgba(77,221,136,.18);  color: var(--green);  border: 1px solid rgba(77,221,136,.4); }

@keyframes flip {
  0%   { transform: scaleY(0); background: rgba(255,112,64,.7); }
  50%  { transform: scaleY(1.25); }
  100% { transform: scaleY(1); }
}
.bit.just-changed { animation: flip .3s ease forwards; }

.dec-val { font-size: 0.67em; color: var(--dim);    margin-left: 3px; width: 22px; text-align: right; flex-shrink: 0; }
.hex-val { font-size: 0.67em; color: var(--accent); margin-left: 3px; width: 18px; text-align: right; flex-shrink: 0; opacity: .75; }

/* ── FOOTER ── */
footer {
  padding: 14px 24px 20px;
  background: var(--card);
  border-top: 1px solid var(--border);
}
.foot-title { font-size: 0.72em; text-transform: uppercase; letter-spacing: 2px; color: var(--dim); margin-bottom: 10px; }

.msg-flow {
  display: flex; flex-wrap: wrap; gap: 7px;
  min-height: 48px;
  margin-bottom: 12px;
}
.char-group {
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 5px 8px;
}
.cg-lbl  { font-size: 0.65em; color: var(--dim); text-align: center; margin-bottom: 3px; }
.cg-bits { display: flex; gap: 1px; }
.mbit {
  width: 13px; height: 16px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 2px; font-size: 10.5px;
  background: rgba(255,255,255,.04); color: #3a3a70;
}
.mbit.emb  { background: rgba(255,112,64,.22); color: var(--orange); border: 1px solid rgba(255,112,64,.4); }
.mbit.pend { color: #3a3a70; }

.stats-row { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 8px; }
.stat { font-size: 0.78em; color: var(--dim); }
.stat span { color: var(--text); }
.ok   { color: var(--green)  !important; }
.warn { color: var(--orange) !important; }

.cap-bar  { height: 3px; background: var(--card2); border-radius: 2px; overflow: hidden; }
.cap-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--orange)); border-radius: 2px; transition: width .3s; }

.decoded {
  margin-top: 12px; padding: 10px 14px;
  background: var(--card2); border: 1px solid var(--border); border-radius: 6px;
  font-size: 0.82em;
}
.dec-lbl { font-size: 0.7em; text-transform: uppercase; letter-spacing: 1px; color: var(--dim); margin-bottom: 4px; }
.dec-out { color: var(--accent); word-break: break-all; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }