/* ── Reset & Base ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0a0a0a;
  font-family: 'Courier New', 'Consolas', 'Liberation Mono', monospace;
  font-size: 15px;
  line-height: 1.5;
  color: #c0c0c0;
}

/* ── Terminal Container ── */
#terminal {
  width: 100%;
  height: 100%;
  padding: 28px 20px 48px 20px;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
  /* Firefox scrollbar */
  scrollbar-width: thin;
  scrollbar-color: #333 #0a0a0a;
}

#terminal::-webkit-scrollbar {
  width: 6px;
}

#terminal::-webkit-scrollbar-track {
  background: #0a0a0a;
}

#terminal::-webkit-scrollbar-thumb {
  background: #333;
  border-radius: 3px;
}

/* ── Output Area ── */
#output {
  flex: 1 1 auto;
}

#output .line {
  white-space: pre-wrap;
  word-wrap: break-word;
  min-height: 1.5em;
}

#output .line:empty::after {
  content: '\200b'; /* zero-width space to preserve height */
}

/* ── Input Line ── */
#input-line {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  margin-top: 2px;
}

#input-line.hidden {
  display: none;
}

#prompt {
  flex-shrink: 0;
  user-select: none;
  margin-right: 6px;
}

#command-input {
  background: transparent;
  border: none;
  outline: none;
  color: #33ff33;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  caret-color: #33ff33;
  padding: 0;
  width: 1ch;
  min-width: 1ch;
  max-width: calc(100% - 30px);
}

/* Invisible click target to focus input from anywhere */
#input-line::after {
  content: '';
  flex: 1;
  min-height: 1.5em;
  cursor: text;
}

/* ── Enter Key Hint ── */
#enter-hint {
  color: #555;
  font-size: 11px;
  margin-left: 8px;
  user-select: none;
  flex-shrink: 0;
}

/* ── Input Focus Indicator ── */
#input-line:not(.hidden) {
  border-left: 2px solid #33ff33;
  padding-left: 6px;
  margin-left: -8px;
}

/* ── Speaker Color Classes ── */
.commander {
  color: #ffd700;
  font-weight: bold;
}

.system {
  color: #ff4444;
}

.user-input {
  color: #33ff33;
}

.enemy {
  color: #ff44ff;
  font-weight: bold;
}

.narrator {
  color: #888888;
  font-style: italic;
}

.objective {
  color: #00ccff;
}

.success {
  color: #44ff44;
  font-weight: bold;
}

.error {
  color: #ff4444;
}

.hint {
  color: #ffaa00;
}

.ascii-art {
  color: #00ccff;
  line-height: 1.15;
}

.dim {
  color: #888888;
}

.bold {
  font-weight: bold;
}

/* ── BGM Panel ── */
#bgm-panel {
  position: fixed;
  top: 28px;
  right: 16px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 10, 10, 0.85);
  border: 1px solid #333;
  border-radius: 6px;
  padding: 6px 12px;
  user-select: none;
  transition: opacity 0.3s;
}

#bgm-panel:hover {
  border-color: #555;
}

#bgm-toggle {
  background: none;
  border: 1px solid #555;
  border-radius: 4px;
  color: #33ff33;
  font-size: 16px;
  width: 30px;
  height: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
}

#bgm-toggle:hover {
  background: #1a1a1a;
}

#bgm-toggle.muted {
  color: #555;
  border-color: #333;
}

#bgm-volume {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 4px;
  background: #333;
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

#bgm-volume::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #33ff33;
  cursor: pointer;
  border: none;
}

#bgm-volume::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #33ff33;
  cursor: pointer;
  border: none;
}

#bgm-vol-label {
  color: #555;
  font-size: 11px;
  min-width: 30px;
  text-align: right;
  font-family: 'Courier New', monospace;
}

/* ── Mobile Responsive ── */
@media (max-width: 600px) {
  html, body {
    font-size: 14px;
  }

  #terminal {
    padding: 10px 12px;
    padding-top: 48px;
    padding-bottom: 60px;
  }

  #input-line:not(.hidden) {
    position: sticky;
    bottom: 0;
    background: #0a0a0a;
    padding-top: 6px;
    padding-bottom: 6px;
    z-index: 5;
  }

  #bgm-panel {
    top: 24px;
    right: 8px;
    padding: 4px 8px;
    gap: 6px;
  }

  #bgm-volume {
    width: 60px;
  }

  #enter-hint {
    display: none;
  }
}

@media (max-width: 400px) {
  html, body {
    font-size: 13px;
  }
}