:root {
  --bg: #0b0b12;
  --panel: #15151f;
  --border: #2a2a3a;
  --accent: #7c5cff;
  --text: #e8e8f0;
  --text-dim: #9a9ab0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
}

.topbar {
  padding: 24px 32px 8px;
}

.topbar h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: 1px;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--text-dim);
  font-size: 13px;
}

.layout {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  gap: 16px;
  padding: 16px 32px 32px;
  min-height: 70vh;
}

/* Telas médias (tablet/notebook pequeno): o visual 3D passa a ocupar a
   largura toda, em cima; player e chat ficam lado a lado embaixo. As 3
   colunas fixas do desktop não cabem mais sem espremer tudo. */
@media (max-width: 1000px) {
  .layout {
    grid-template-columns: 1fr 1fr;
  }

  .canvas-panel {
    grid-column: 1 / -1;
    order: -1;
  }
}

/* Telas pequenas (celular): tudo empilhado numa coluna só, visual 3D
   primeiro (é o que mais importa ver), depois player, depois chat. */
@media (max-width: 640px) {
  .layout {
    grid-template-columns: 1fr;
    padding: 12px 16px 24px;
    gap: 12px;
    min-height: auto;
  }

  .canvas-panel {
    grid-column: auto;
    min-height: 300px;
  }

  .panel {
    min-height: 260px;
  }

  .topbar {
    padding: 16px 16px 6px;
  }

  .topbar h1 {
    font-size: 22px;
  }

  #scene-canvas {
    min-height: 240px;
  }

  .audio-meter {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px 14px;
  }

  .chat-input-row {
    flex-wrap: wrap;
  }

  #chat-input {
    min-width: 0;
  }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
}

.player-controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.player-controls button {
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: white;
  padding: 10px;
  cursor: pointer;
  font-size: 14px;
}

.player-controls button:disabled {
  background: #3a3a4a;
  cursor: not-allowed;
}

.audio-meter {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--text-dim);
}

.audio-meter b {
  color: var(--text);
}

.settings-panel {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.settings-panel h3 {
  margin: 0 0 2px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
}

.setting-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--text-dim);
}

.setting-row label {
  display: flex;
  justify-content: space-between;
}

.setting-row label span {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.setting-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.setting-row-toggle {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.setting-row-toggle input[type="checkbox"] {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

#set-reset {
  margin-top: 4px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  padding: 8px;
  cursor: pointer;
  font-size: 12px;
}

#set-reset:hover {
  border-color: var(--accent);
  color: var(--text);
}

.canvas-panel {
  align-items: center;
  justify-content: center;
}

#scene-canvas {
  width: 100%;
  height: 100%;
  min-height: 400px;
  border-radius: 8px;
  background: #05050a;
}

.chat-panel {
  justify-content: space-between;
}

.chat-log {
  flex: 1;
  overflow-y: auto;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.chat-placeholder {
  font-style: italic;
}

.chat-log p {
  margin: 4px 0;
}

.chat-log ul,
.chat-log ol {
  margin: 4px 0 8px 20px;
  padding: 0;
}

.chat-log li {
  margin: 2px 0;
}

.chat-log strong {
  color: var(--text);
}

.chat-input-row {
  display: flex;
  gap: 8px;
}

#chat-input {
  flex: 1;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0b0b12;
  color: var(--text);
}

#chat-send {
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: white;
  padding: 0 14px;
  cursor: pointer;
}

#chat-send:disabled,
#chat-input:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}