/**
 * Audio Test - GreenGetWare Theme
 */

:root {
  --primary: #39d353;
  --primary-dark: #176f3c;
  --primary-hover: #2fb344;
  --primary-light: rgba(57, 211, 83, 0.15);
  --primary-gradient: linear-gradient(135deg, #39d353 0%, #176f3c 100%);
  --accent: #00c9ff;
  --secondary: #64748b;
  --success: #39d353;
  --warning: #f59e0b;
  --danger: #ef4444;
  
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #252540;
  --bg-card: rgba(26, 26, 46, 0.9);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(255, 255, 255, 0.08);
  
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 60px rgba(57, 211, 83, 0.2);
  
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.9);
  --text-primary: #1a1a2e;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border-color: rgba(0, 0, 0, 0.08);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Header */
.app-header {
  background: var(--bg-card);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand-section {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo i {
  color: var(--primary);
  font-size: 1.75rem;
}

.brand-badge {
  font-size: 0.6875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.header-actions {
  display: flex;
  gap: var(--space-sm);
}

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-tertiary);
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  background: var(--primary);
  color: white;
}

.btn-home {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--primary-gradient);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(57, 211, 83, 0.3);
  transition: all var(--transition-fast);
}

.btn-home:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(57, 211, 83, 0.4);
  color: white;
}

.btn-home span {
  display: none;
}

@media (min-width: 768px) {
  .btn-home span {
    display: inline;
  }
}

/* Main Content */
.main-content {
  padding: var(--space-xl) 0;
}

/* Hero Section */
.hero-section {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.hero-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-gradient);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  box-shadow: var(--shadow-glow);
}

.hero-icon i {
  font-size: 2.5rem;
  color: white;
}

.hero-section h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--space-sm);
}

.hero-section p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Tab Navigation */
.tab-navigation {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tab-btn.active {
  background: var(--primary-gradient);
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 20px rgba(57, 211, 83, 0.3);
}

.tab-btn i {
  font-size: 1.25rem;
}

/* Tab Content */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Test Layout */
.test-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-xl);
  align-items: start;
}

.test-layout.single {
  grid-template-columns: 1fr;
  max-width: 700px;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .test-layout {
    grid-template-columns: 1fr;
  }
}

/* Test Card */
.test-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.test-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.test-card .card-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.test-card .card-header h3 i {
  color: var(--primary);
}

.test-card .card-body {
  padding: var(--space-lg);
}

.status-badge {
  padding: var(--space-xs) var(--space-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.status-badge.active {
  background: var(--primary-light);
  color: var(--primary);
}

.status-badge.recording {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

/* Volume Meter */
.volume-meter-container {
  margin-bottom: var(--space-xl);
  text-align: center;
}

.volume-meter {
  width: 100%;
  height: 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.meter-fill {
  height: 100%;
  width: 0%;
  background: var(--primary-gradient);
  border-radius: var(--radius-full);
  transition: width 0.1s ease;
}

.meter-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Test Sounds */
.test-sounds,
.stereo-test,
.frequency-test {
  margin-bottom: var(--space-xl);
}

.test-sounds h4,
.stereo-test h4,
.frequency-test h4,
.recording-section h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sound-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.sound-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sound-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.sound-btn.playing {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.sound-btn i {
  font-size: 1.5rem;
}

.sound-btn span {
  font-size: 0.75rem;
  font-weight: 500;
}

/* Stereo Controls */
.stereo-controls {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

.channel-btn {
  flex: 1;
  max-width: 150px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.channel-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.channel-btn.playing {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.channel-btn i {
  font-size: 2rem;
}

/* Frequency Test */
.frequency-slider {
  margin-bottom: var(--space-md);
}

.frequency-slider input {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.frequency-slider input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
}

.frequency-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-sm);
  font-size: 0.75rem;
  color: var(--text-muted);
}

#currentFrequency {
  color: var(--primary);
  font-weight: 600;
}

.play-frequency-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--primary-gradient);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.play-frequency-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(57, 211, 83, 0.4);
}

.play-frequency-btn.playing {
  background: var(--danger);
}

/* Info Panel */
.info-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.panel-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.panel-card .card-header {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-color);
}

.panel-card .card-header h3 {
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.panel-card .card-header h3 i {
  color: var(--primary);
}

.panel-card .card-body {
  padding: var(--space-md);
}

.form-select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-bottom: var(--space-sm);
}

.btn-refresh {
  width: 100%;
  padding: var(--space-sm);
  background: transparent;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-refresh:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Volume Control */
.volume-control {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.volume-control input {
  flex: 1;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  -webkit-appearance: none;
  appearance: none;
}

.volume-control input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
}

.vol-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.vol-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.volume-value {
  text-align: center;
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
}

/* Checklist */
.checklist .card-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.check-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.check-item i {
  font-size: 1rem;
  color: var(--text-muted);
}

.check-item i.bi-check-circle-fill {
  color: var(--success);
}

/* Info Grid */
.info-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.info-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.info-value {
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.status-dot.offline {
  background: var(--text-muted);
}

/* Setting Item */
.setting-item {
  margin-bottom: var(--space-sm);
}

.setting-item label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.setting-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

/* Microphone Controls */
.mic-controls {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.mic-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.mic-btn:hover {
  border-color: var(--primary);
}

.mic-btn.active {
  border-color: var(--primary);
  background: var(--primary-light);
}

.mic-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.mic-btn.active .mic-icon {
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(57, 211, 83, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 0 0 20px rgba(57, 211, 83, 0); }
}

.mic-icon i {
  font-size: 2.5rem;
  color: white;
}

.mic-btn span {
  font-weight: 600;
  font-size: 1rem;
}

/* Visualizer */
.visualizer-container {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
}

#audioVisualizer {
  width: 100%;
  height: 150px;
  display: block;
}

/* Input Level */
.input-level {
  margin-bottom: var(--space-xl);
}

.level-bar {
  width: 100%;
  height: 12px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.level-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--success), var(--warning), var(--danger));
  border-radius: var(--radius-full);
  transition: width 0.05s ease;
}

.level-info {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-sm);
  font-size: 0.75rem;
  color: var(--text-muted);
}

#micLevelDb {
  font-weight: 600;
  color: var(--primary);
}

/* Recording Section */
.recording-section {
  text-align: center;
}

.record-controls {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.record-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.record-btn:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
}

.record-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.record-btn.recording {
  background: var(--danger);
  border-color: var(--danger);
  color: white;
}

.recording-time {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: monospace;
  color: var(--text-muted);
}

.recording-time.active {
  color: var(--danger);
}

/* Latency Card */
.latency-card .card-body {
  text-align: center;
}

.latency-display {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.latency-value {
  font-size: 5rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.latency-unit {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-muted);
}

.latency-rating {
  margin-bottom: var(--space-xl);
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-weight: 500;
}

.latency-rating.excellent {
  background: rgba(57, 211, 83, 0.2);
  color: var(--success);
}

.latency-rating.good {
  background: rgba(0, 201, 255, 0.2);
  color: var(--accent);
}

.latency-rating.fair {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

.latency-rating.poor {
  background: rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.latency-instructions {
  text-align: left;
  margin-bottom: var(--space-xl);
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.latency-instructions p {
  margin-bottom: var(--space-sm);
}

.latency-instructions ol {
  padding-left: var(--space-lg);
}

.latency-instructions li {
  margin-bottom: var(--space-xs);
}

.latency-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-2xl);
  background: var(--primary-gradient);
  border: none;
  border-radius: var(--radius-lg);
  color: white;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.latency-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(57, 211, 83, 0.4);
}

.latency-btn.testing {
  background: var(--warning);
}

.latency-history {
  margin-top: var(--space-xl);
  text-align: left;
}

.latency-history h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.history-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-sm);
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

/* Features Section */
.features-section {
  margin-top: var(--space-2xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border-color);
}

.features-section h2 {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-xl);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.feature-icon i {
  font-size: 1.75rem;
  color: var(--primary);
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Footer */
.app-footer {
  padding: var(--space-xl) 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
  margin-top: var(--space-2xl);
}

.app-footer p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 1.75rem;
  }
  
  .sound-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stereo-controls {
    flex-direction: column;
  }
  
  .channel-btn {
    max-width: 100%;
  }
}