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

:root {
  --green:   #39ff14;
  --green-dk:#1a3a0a;
  --red:     #ff4444;
  --blue:    #4488ff;
  --bg:      #0d0d0d;
  --panel:   #141414;
  --border:  #2a2a2a;
}

body {
  background: var(--bg);
  color: var(--green);
  font-family: 'Courier New', Courier, monospace;
  font-size: 13px;
  line-height: 1.4;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Upper area: game panels + instructions side by side ─────── */

#upper-area {
  display: flex;
  flex-direction: row;
  flex: 1 1 0;
  min-height: 0;
  border-bottom: 1px solid var(--border);
}

/* ── Player panels ────────────────────────────────────────────── */

#players {
  display: flex;
  flex-direction: column;
  flex: 1 1 0;
  min-width: 0;
  overflow-y: auto;
}

.player-panel {
  display: grid;
  grid-template-areas:
    "header"
    "oled-area"
    "switches"
    "leds";
  grid-template-columns: 1fr;
  justify-items: center;
  padding: 10px 12px;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.player-panel:last-child { border-bottom: none; }

.panel-header {
  grid-area: header;
  font-size: 11px;
  letter-spacing: 3px;
  font-weight: bold;
  text-align: center;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
  width: 100%;
}

.p1-color { color: var(--red);  border-color: #331111; }
.p2-color { color: var(--blue); border-color: #112233; }

/* ── OLED + flanking move button columns ──────────────────────── */

.oled-area {
  grid-area: oled-area;
  display: flex;
  align-items: stretch;
  gap: 4px;
}

.move-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
}


.oled {
  width: 256px;
  height: 128px;
  image-rendering: pixelated;
  border: 2px solid #1a3a1a;
  border-radius: 3px;
  background: #0a190a;
  display: block;
  flex-shrink: 0;
}

.move-btn {
  flex: 1;
  width: 52px;
  background: rgba(13, 26, 13, 0.88);
  color: var(--green);
  border: 2px solid #1a3a1a;
  font-family: inherit;
  font-size: 13px;
  font-weight: bold;
  cursor: pointer;
  border-radius: 4px;
  user-select: none;
  transition: background 0.08s, transform 0.05s, box-shadow 0.08s;
}

.move-btn:hover  { filter: brightness(1.4); }
.move-btn:active { transform: scale(0.93); filter: brightness(0.8); }

/* ── Switch row ───────────────────────────────────────────────── */

.switch-row {
  grid-area: switches;
  display: flex;
  gap: 6px;
  justify-content: center;
}

.switch-btn {
  width: 42px;
  height: 32px;
  background: #0d0d1a;
  color: var(--blue);
  border: 2px solid #111a33;
  font-family: inherit;
  font-size: 13px;
  font-weight: bold;
  cursor: pointer;
  border-radius: 4px;
  user-select: none;
  transition: background 0.08s, transform 0.05s, box-shadow 0.08s;
}

.switch-btn:hover  { filter: brightness(1.4); }
.switch-btn:active { transform: scale(0.93); filter: brightness(0.8); }

/* ── LED row ──────────────────────────────────────────────────── */

.led-row {
  grid-area: leds;
  display: flex;
  gap: 20px;
  padding: 2px 0;
  align-items: center;
}

.led-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.led-label {
  font-size: 7px;
  letter-spacing: 1px;
  color: #444;
  user-select: none;
}

.led-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}

.led {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #111;
  border: 1px solid #222;
  transition: background-color 0.1s, box-shadow 0.1s;
  flex-shrink: 0;
}

.led.party  { width: 13px; height: 13px; align-self: center; }
.led.status { width: 13px; height: 13px; align-self: center; }

/* ── OLED flash animations ────────────────────────────────────── */

@keyframes flash-super {
    0%   { border-color: #ffee00; box-shadow: 0 0 14px #ffee00; }
    100% { border-color: #1a3a1a; box-shadow: none; }
}
@keyframes flash-crit {
    0%   { border-color: #ff4444; box-shadow: 0 0 14px #ff4444; }
    100% { border-color: #1a3a1a; box-shadow: none; }
}
.oled.flash-super { animation: flash-super 0.5s ease-out forwards; }
.oled.flash-crit  { animation: flash-crit  0.5s ease-out forwards; }

/* ── Instructions panel ───────────────────────────────────────── */

#instructions {
  flex: 0 0 33%;
  min-width: 120px;
  max-width: 60%;
  overflow-y: auto;
  padding: 18px 22px;
  line-height: 1.75;
  scrollbar-width: thin;
  scrollbar-color: var(--green-dk) var(--bg);
}

#instructions h2 {
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--green);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

#instructions h3 {
  font-size: 11px;
  letter-spacing: 3px;
  color: #555;
  margin: 14px 0 5px;
}

#instructions section:first-of-type h3 { margin-top: 0; }

#instructions p {
  color: #7a7a7a;
  font-size: 13px;
  margin-bottom: 5px;
}

#instructions table {
  border-collapse: collapse;
  width: 100%;
}

#instructions td {
  color: #7a7a7a;
  font-size: 13px;
  padding: 2px 0;
  vertical-align: top;
}

#instructions td:first-child {
  color: #aee;
  white-space: nowrap;
  padding-right: 14px;
  min-width: 80px;
}

.kbd {
  font-size: 8px;
  letter-spacing: 2px;
  color: #444;
  font-weight: normal;
}

/* ── Terminal ─────────────────────────────────────────────────── */

#terminal {
  flex: 0 0 180px;
  display: flex;
  flex-direction: column;
  padding: 8px 14px 8px;
  min-height: 0;
  background: #080808;
}

#log {
  flex: 1;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
  scrollbar-width: thin;
  scrollbar-color: var(--green-dk) var(--bg);
  font-size: 12px;
  color: #aee;
  min-height: 0;
}

#log::-webkit-scrollbar { width: 5px; }
#log::-webkit-scrollbar-track { background: var(--bg); }
#log::-webkit-scrollbar-thumb { background: var(--green-dk); border-radius: 3px; }

#input-row {
  display: flex;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: 6px;
  margin-top: 4px;
  flex-shrink: 0;
}

#prompt {
  color: var(--green);
  margin-right: 4px;
  flex-shrink: 0;
}

#input {
  background: transparent;
  border: none;
  color: var(--green);
  font-family: inherit;
  font-size: inherit;
  outline: none;
  flex: 1;
  caret-color: var(--green);
  min-width: 0;
}

#input::placeholder { color: #333; }

#demo-row {
  display: flex;
  justify-content: center;
  padding: 6px 0 4px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.demo-label {
  font-size: 8px;
  letter-spacing: 3px;
  color: #2a2a2a;
  user-select: none;
  align-self: center;
  margin-right: 6px;
}

.demo-btn {
  background: transparent;
  color: #444;
  border: 1px solid #2a2a2a;
  font-family: inherit;
  font-size: 10px;
  letter-spacing: 2px;
  padding: 3px 16px;
  cursor: pointer;
  border-radius: 3px;
  transition: color 0.1s, border-color 0.1s;
}
.demo-btn:hover  { color: var(--green); border-color: var(--green-dk); }
.demo-btn:active { opacity: 0.6; }

/* ── Resize handles ───────────────────────────────────────────── */

#col-resizer {
  flex: 0 0 5px;
  cursor: col-resize;
  background: var(--border);
  transition: background 0.1s;
  align-self: stretch;
}
#col-resizer:hover, #col-resizer.dragging { background: var(--green-dk); }

#row-resizer {
  flex: 0 0 5px;
  cursor: row-resize;
  background: var(--border);
  transition: background 0.1s;
  width: 100%;
}
#row-resizer:hover, #row-resizer.dragging { background: var(--green-dk); }

/* ── Responsive: narrow screens ───────────────────────────────── */

@media (max-width: 680px) {
  body {
    height: auto;
    min-height: 100dvh;
    overflow-y: auto;
  }

  #upper-area {
    flex-direction: column;
    flex: 0 0 auto;
    border-bottom: none;
    overflow: visible;
  }

  #players {
    border-right: none;
    overflow-y: visible;
  }

  #instructions {
    flex: 0 0 auto;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 14px 16px;
    max-height: 40dvh;
    overflow-y: auto;
  }

  #terminal {
    flex: 0 0 auto;
    height: 45dvh;
    min-height: 160px;
  }

  .player-panel { padding: 8px; }

  .oled { width: min(60vw, 256px); height: min(30vw, 128px); }

  .move-btn   { width: 36px; font-size: 9px; }
  .switch-btn { width: 34px; height: 28px; font-size: 11px; }

  .led        { width: 12px; height: 12px; }
  .led.party  { width: 10px; height: 10px; }
  .led.status { width: 10px; height: 10px; }
  .led-row    { gap: 3px; }
}