:root {
  --bg-dark: #08090c;
  --panel-bg: rgba(18, 20, 29, 0.65);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text-main: #e2e8f0;
  --text-muted: #64748b;
  
  --accent-cyan: #38bdf8;
  --danger-red: #ef4444;
  --warning-amber: #f59e0b;

  --font-ui: 'Space Grotesk', sans-serif;
  --font-editor: 'Newsreader', serif;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-ui);
  height: 100vh;
  overflow: hidden;
  position: relative;
}

/* Background Canvas & Vignette */
#ambientCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
}

.canvas-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at center, rgba(8, 9, 12, 0.3) 0%, rgba(8, 9, 12, 0.85) 100%);
  z-index: 2;
  pointer-events: none;
}

/* Main Layout */
.room-wrapper {
  position: relative;
  z-index: 3;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 2rem;
  max-width: 1300px;
  margin: 0 auto;
}

.room-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pulse-dot {
  width: 10px;
  height: 10px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.brand h1 {
  font-size: 1.25rem;
  letter-spacing: 0.1em;
}

.scene-picker {
  display: flex;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 30px;
  padding: 0.25rem;
  backdrop-filter: blur(12px);
}

.scene-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.5rem 1.25rem;
  border-radius: 20px;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.scene-btn.active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* Workspace Grid */
.workspace {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 2rem;
  flex: 1;
  min-height: 0;
}

/* Sound Rack Panel */
.sound-rack {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 1.5rem;
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.rack-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 0.75rem;
}

.rack-title h3 {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.tag {
  font-size: 0.65rem;
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-cyan);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.sound-card {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sound-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sound-info i {
  font-size: 1.1rem;
  color: var(--accent-cyan);
}

.sound-info h4 {
  font-size: 0.9rem;
}

.sound-info p {
  font-size: 0.7rem;
  color: var(--text-muted);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

/* Danger Notepad Editor */
.notepad-container {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 1.5rem;
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.notepad-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.pad-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--danger-red);
}

.timer-box {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
}

#timerCountdown {
  color: var(--accent-cyan);
  margin-left: 0.4rem;
}

/* Timer Countdown Bar */
.timer-bar-container {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
  margin-bottom: 1.25rem;
  overflow: hidden;
}

.timer-bar {
  width: 100%;
  height: 100%;
  background: var(--accent-cyan);
  transition: width 0.1s linear, background-color 0.3s ease;
}

.timer-bar.danger {
  background: var(--danger-red);
  box-shadow: 0 0 10px var(--danger-red);
}

/* Typewriter Area */
textarea {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  color: var(--text-main);
  font-family: var(--font-editor);
  font-size: 1.35rem;
  line-height: 1.7;
}

textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

.notepad-footer {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--panel-border);
  padding-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.warning-text {
  color: var(--warning-amber);
}

@media (max-width: 900px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}