:root {
  --bg-main: #0a0d14;
  --bg-card: #121824;
  --bg-card-hover: #182234;
  --bg-input: #0c1018;
  --border-color: #223048;
  --border-focus: #00f2fe;
  --text-primary: #f0f6fc;
  --text-secondary: #8b9bb4;
  --text-muted: #53647e;
  
  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  
  --color-green: #00e676;
  --color-yellow: #ffab00;
  --color-red: #ff1744;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-chassis: 36px;
  
  --shadow-glow: 0 0 25px rgba(0, 242, 254, 0.25);
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.5);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at 50% 0%, #172438 0%, #0a0d14 65%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header */
.app-header {
  background: rgba(18, 24, 36, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.device-badge-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #00f2fe, #4facfe);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-glow);
}

.logo-text h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #ffffff, #88c0d0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text p {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.header-status-bar {
  display: flex;
  align-items: center;
  gap: 16px;
}

.offline-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 230, 118, 0.1);
  border: 1px solid rgba(0, 230, 118, 0.4);
  color: var(--color-green);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.offline-pill.active {
  background: rgba(0, 230, 118, 0.15);
  border-color: var(--color-green);
  box-shadow: 0 0 15px rgba(0, 230, 118, 0.3);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-green);
  border-radius: 50%;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.7; box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.7); }
  70% { transform: scale(1.1); opacity: 1; box-shadow: 0 0 0 8px rgba(0, 230, 118, 0); }
  100% { transform: scale(0.9); opacity: 0.7; }
}

.system-ram-stat {
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--bg-card);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

/* Nav Tabs */
.nav-tabs-container {
  display: flex;
  justify-content: center;
  background: rgba(14, 18, 27, 0.95);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 16px;
  gap: 8px;
}

.nav-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-tab-btn.active {
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid rgba(0, 242, 254, 0.35);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.15);
}

/* Main Container */
.main-content {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 20px;
  width: 100%;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ----------------------------------------------------
   PIPELINE ARCHITECTURE MODEL MATRIX BAR
---------------------------------------------------- */
.pipeline-model-matrix-card {
  background: linear-gradient(180deg, #111a28 0%, #0a111a 100%);
  border: 1px solid #1f2f45;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.matrix-card-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: #94a3b8;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.offline-badge-pill {
  background: rgba(0, 230, 118, 0.15);
  color: #00e676;
  border: 1px solid rgba(0, 230, 118, 0.3);
  border-radius: 20px;
  padding: 2px 8px;
  font-size: 0.68rem;
  font-weight: 700;
}

.pipeline-model-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 10px;
}

.model-flow-step {
  background: #080d16;
  border: 1px solid #1a273b;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  transition: all 0.3s ease;
}

.model-flow-step.highlight-asr {
  border-color: rgba(0, 242, 254, 0.3);
}

.model-flow-step.highlight-trans {
  border-color: rgba(124, 58, 237, 0.4);
}

.model-flow-step.highlight-tts {
  border-color: rgba(0, 230, 118, 0.4);
}

.flow-step-number {
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--text-muted);
  letter-spacing: 0.8px;
  margin-bottom: 2px;
}

.flow-step-title {
  font-size: 0.76rem;
  font-weight: 700;
  color: #e2e8f0;
}

.flow-step-model {
  font-size: 0.82rem;
  font-weight: 700;
  color: #00f2fe;
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.model-flow-step.highlight-trans .flow-step-model {
  color: #a78bfa;
}

.model-flow-step.highlight-tts .flow-step-model {
  color: #00e676;
}

.flow-step-file {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-family: monospace;
  margin-top: 2px;
}

.flow-arrow {
  color: #334155;
  font-size: 1.1rem;
  font-weight: 900;
  user-select: none;
}

.lcd-model-pill {
  font-size: 0.62rem;
  font-weight: 600;
  color: #00f2fe;
  background: rgba(0, 242, 254, 0.1);
  padding: 1px 6px;
  border-radius: 10px;
  border: 1px solid rgba(0, 242, 254, 0.25);
  text-transform: none;
  letter-spacing: 0;
}

.step-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.step-detail {
  font-size: 0.74rem;
  color: #94a3b8;
}

.step-detail strong.highlight-text {
  color: #00f2fe;
}

.step-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 12px;
  background: #151e2c;
  border: 1px solid #2a3b54;
  color: #94a3b8;
  letter-spacing: 0.5px;
}

.step-badge.asr-badge {
  color: #00f2fe;
  border-color: rgba(0, 242, 254, 0.3);
  background: rgba(0, 242, 254, 0.08);
}

.step-badge.trans-badge {
  color: #a78bfa;
  border-color: rgba(167, 139, 250, 0.3);
  background: rgba(167, 139, 250, 0.08);
}

.step-badge.tts-badge {
  color: #00e676;
  border-color: rgba(0, 230, 118, 0.3);
  background: rgba(0, 230, 118, 0.08);
}

/* ----------------------------------------------------
   HANDHELD SIMULATOR & TRANSLATOR SCREEN
---------------------------------------------------- */
.handheld-workspace-grid {
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 28px;
  align-items: start;
}

@media (max-width: 1024px) {
  .pipeline-model-flow {
    grid-template-columns: 1fr;
  }
  .flow-arrow {
    display: none;
  }
  .handheld-workspace-grid {
    grid-template-columns: 1fr;
  }
}

/* Handheld Hardware Chassis */
.handheld-chassis {
  background: linear-gradient(165deg, #1c2637 0%, #0e1522 100%);
  border: 3px solid #2e3e57;
  border-radius: var(--radius-chassis);
  padding: 24px 20px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), inset 0 2px 4px rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
}

.chassis-header-rim {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.device-model-label {
  font-size: 0.7rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  font-weight: 700;
}

.led-group {
  display: flex;
  gap: 10px;
}

.hardware-led {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #2a384f;
  transition: var(--transition);
}

.hardware-led.green.on {
  background: #00e676;
  box-shadow: 0 0 10px #00e676;
}

.hardware-led.blue.on {
  background: #00f2fe;
  box-shadow: 0 0 10px #00f2fe;
}

.hardware-led.amber.on {
  background: #ffab00;
  box-shadow: 0 0 10px #ffab00;
}

/* Handheld LCD Display Screen */
.handheld-screen {
  background: #060910;
  border: 2px solid #1a2538;
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.9);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.screen-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  border-bottom: 1px solid #141d2d;
  padding-bottom: 6px;
}

.offline-lcd-tag {
  color: var(--color-green);
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* Language Switcher Dial */
.language-selector-module {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #0b111a;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
}

.lang-select-box {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}

.lang-select-box label {
  font-size: 0.68rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.lang-select-box select {
  background: transparent;
  color: var(--accent-cyan);
  border: none;
  font-size: 0.92rem;
  font-weight: 700;
  outline: none;
  cursor: pointer;
}

.lang-select-box select option {
  background: #0f1724;
  color: #fff;
}

.swap-lang-btn {
  background: #172234;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition);
}

.swap-lang-btn:hover {
  color: #fff;
  border-color: var(--accent-cyan);
  transform: rotate(180deg);
}

/* Audio Visualizer & Waveform */
.audio-visualizer-box {
  height: 60px;
  background: #04070d;
  border-radius: var(--radius-sm);
  border: 1px solid #141c2a;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

canvas#audioWaveCanvas {
  width: 100%;
  height: 100%;
}

.audio-duration-tag {
  position: absolute;
  bottom: 4px;
  right: 6px;
  font-size: 0.65rem;
  color: var(--accent-cyan);
  font-family: monospace;
}

/* Transcripts on LCD */
.lcd-transcription-panels {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lcd-panel {
  background: #0a0f18;
  border: 1px solid #1a273b;
  border-radius: var(--radius-sm);
  padding: 10px;
}

.lcd-panel-title {
  font-size: 0.68rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.lcd-panel-content {
  font-size: 0.95rem;
  line-height: 1.4;
  min-height: 28px;
  word-break: break-word;
}

.lcd-panel.source .lcd-panel-content {
  color: #e2e8f0;
}

.lcd-panel.target {
  border-color: rgba(0, 242, 254, 0.3);
  background: #08131e;
}

.lcd-panel.target .lcd-panel-content {
  color: var(--accent-cyan);
  font-weight: 600;
}

/* Handheld Physical Controls */
.handheld-controls-cluster {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ptt-main-btn {
  background: linear-gradient(180deg, #2b3952 0%, #151e2d 100%);
  border: 2px solid #43587b;
  color: #fff;
  border-radius: 40px;
  padding: 18px;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 1px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6), inset 0 2px 2px rgba(255, 255, 255, 0.2);
  transition: var(--transition);
  text-transform: uppercase;
}

.ptt-main-btn:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 8px 25px rgba(0, 242, 254, 0.3);
}

.ptt-main-btn.recording {
  background: linear-gradient(180deg, #ff1744 0%, #b71c1c 100%);
  border-color: #ff5252;
  box-shadow: 0 0 30px rgba(255, 23, 68, 0.6);
  animation: pttPulse 1.2s infinite;
}

@keyframes pttPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

.controls-secondary-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.secondary-control-btn {
  background: #151e2c;
  border: 1px solid #2a3b54;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 12px 8px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
}

.secondary-control-btn:hover:not(:disabled) {
  background: #1e2c40;
  border-color: var(--accent-blue);
}

.secondary-control-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.speaker-grille {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 6px;
}

.speaker-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #111a26;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* Pipeline Status Stepper (Right Column) */
.pipeline-inspector-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.stepper-pipeline {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.step-node {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.step-node.active {
  border-color: #00f2fe;
  background: rgba(0, 242, 254, 0.12);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.35), inset 0 0 10px rgba(0, 242, 254, 0.1);
  transform: translateX(4px);
}

.step-node.done {
  border-color: rgba(0, 230, 118, 0.6);
  background: rgba(0, 230, 118, 0.05);
  box-shadow: 0 0 12px rgba(0, 230, 118, 0.2);
}

.step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #1a273b;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  transition: all 0.3s ease;
}

.step-node.done .step-num {
  background: #00e676;
  color: #000;
  box-shadow: 0 0 10px rgba(0, 230, 118, 0.6);
}

.step-node.active .step-num {
  background: #00f2fe;
  color: #000;
  box-shadow: 0 0 14px #00f2fe;
  animation: pulse 1s infinite alternate;
}

.pipeline-pulse-text {
  color: #00f2fe;
  font-style: italic;
  display: inline-block;
  animation: blinkPulseText 1s infinite alternate;
}

@keyframes blinkPulseText {
  from { opacity: 0.5; }
  to { opacity: 1; text-shadow: 0 0 8px rgba(0, 242, 254, 0.6); }
}

.step-label {
  flex: 1;
  font-size: 0.88rem;
  font-weight: 600;
}

.step-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: monospace;
}

/* Audio Input Mode Tabs (Mic vs File) */
.input-mode-selector {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}

.input-mode-btn {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.input-mode-btn.active {
  background: rgba(0, 242, 254, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.file-import-dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  background: #090e16;
  cursor: pointer;
  transition: var(--transition);
}

.file-import-dropzone:hover {
  border-color: var(--accent-cyan);
  background: #0d1522;
}

.sample-audio-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.sample-audio-btn {
  background: #162234;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.78rem;
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
}

.sample-audio-btn:hover {
  border-color: var(--accent-blue);
  background: #1f304a;
}

/* Expressive Prosody Drawer */
.expressive-params-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.param-input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.param-input-group label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.param-input-group input[type="range"] {
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

.param-input-group select {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}

/* ----------------------------------------------------
   MODEL MANAGER SCREEN
---------------------------------------------------- */
.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.model-category-header {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 24px 0 12px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent-blue);
}

.model-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: var(--transition);
  position: relative;
}

.model-card:hover {
  border-color: #374b6e;
  transform: translateY(-2px);
}

.model-card.loaded {
  border-color: rgba(0, 230, 118, 0.4);
  background: linear-gradient(180deg, #131c2a 0%, #0e1522 100%);
}

.model-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.model-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.model-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.badge-loaded {
  background: rgba(0, 230, 118, 0.15);
  color: var(--color-green);
  border: 1px solid rgba(0, 230, 118, 0.3);
}

.badge-unloaded {
  background: rgba(255, 23, 68, 0.15);
  color: var(--color-red);
  border: 1px solid rgba(255, 23, 68, 0.3);
}

.model-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 0.8rem;
  background: var(--bg-input);
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid #1a2538;
}

.meta-field {
  display: flex;
  flex-direction: column;
}

.meta-field .label {
  color: var(--text-muted);
  font-size: 0.7rem;
}

.meta-field .val {
  color: var(--text-primary);
  font-weight: 600;
}

.model-card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
}

.btn-model-action {
  flex: 1;
  padding: 8px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: #172234;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.btn-model-action:hover {
  background: #23344e;
  border-color: var(--accent-cyan);
}

.btn-model-action.load {
  background: rgba(0, 230, 118, 0.15);
  border-color: rgba(0, 230, 118, 0.4);
  color: var(--color-green);
}

.btn-model-action.load:hover {
  background: rgba(0, 230, 118, 0.25);
}

.btn-model-action.unload {
  background: rgba(255, 23, 68, 0.1);
  border-color: rgba(255, 23, 68, 0.3);
  color: var(--color-red);
}

/* ----------------------------------------------------
   BENCHMARK SCREEN & COMPARISON TABLE
---------------------------------------------------- */
.benchmark-metrics-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.metric-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metric-stat-card .label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
}

.metric-stat-card .value {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: monospace;
}

.metric-stat-card.realtime-card {
  border-color: rgba(0, 242, 254, 0.4);
  background: linear-gradient(135deg, #101c2b 0%, #0a111a 100%);
}

.rtf-indicator-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  margin-top: 4px;
}

.rtf-green {
  background: rgba(0, 230, 118, 0.15);
  color: var(--color-green);
  border: 1px solid var(--color-green);
}

.rtf-yellow {
  background: rgba(255, 171, 0, 0.15);
  color: var(--color-yellow);
  border: 1px solid var(--color-yellow);
}

.rtf-red {
  background: rgba(255, 23, 68, 0.15);
  color: var(--color-red);
  border: 1px solid var(--color-red);
}

/* Tables */
.data-table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.benchmark-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.86rem;
}

.benchmark-table th {
  background: #111823;
  padding: 12px 16px;
  color: var(--text-secondary);
  font-weight: 700;
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.5px;
}

.benchmark-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #192334;
  color: var(--text-primary);
}

.benchmark-table tr:hover td {
  background: #141d2c;
}

/* ----------------------------------------------------
   TRANSLATION QUALITY TEST SCREEN
---------------------------------------------------- */
.quality-score-hero {
  background: linear-gradient(135deg, #142133 0%, #0d1624 100%);
  border: 1px solid #283a54;
  border-radius: var(--radius-md);
  padding: 22px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.score-display {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.score-big {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: monospace;
}

.evaluation-btn-group {
  display: flex;
  gap: 6px;
}

.eval-pill-btn {
  border: 1px solid var(--border-color);
  background: #101926;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
}

.eval-pill-btn.active.correct {
  background: rgba(0, 230, 118, 0.2);
  border-color: var(--color-green);
  color: var(--color-green);
}

.eval-pill-btn.active.mostly {
  background: rgba(255, 171, 0, 0.2);
  border-color: var(--color-yellow);
  color: var(--color-yellow);
}

.eval-pill-btn.active.needs {
  background: rgba(255, 23, 68, 0.2);
  border-color: var(--color-red);
  color: var(--color-red);
}

/* ----------------------------------------------------
   AIRPLANE MODE TEST SCREEN
---------------------------------------------------- */
.offline-enforcer-card {
  text-align: center;
  padding: 40px 20px;
  background: linear-gradient(180deg, #101826 0%, #090e17 100%);
  border: 2px solid #00e676;
  border-radius: var(--radius-lg);
  box-shadow: 0 0 40px rgba(0, 230, 118, 0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  max-width: 800px;
  margin: 0 auto;
}

.offline-big-badge {
  background: rgba(0, 230, 118, 0.15);
  border: 2px solid var(--color-green);
  color: var(--color-green);
  font-size: 1.4rem;
  font-weight: 800;
  padding: 12px 30px;
  border-radius: 40px;
  letter-spacing: 1px;
}

.offline-check-list {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 14px;
  width: 100%;
  max-width: 500px;
}

.offline-check-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  background: #0f1724;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid #1f2d42;
}

.check-icon-green {
  color: var(--color-green);
  font-size: 1.1rem;
}

/* Modals */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(6px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-backdrop.open {
  display: flex;
}

.modal-box {
  background: #131b28;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  max-width: 520px;
  width: 90%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.form-group input, .form-group select {
  background: #0b1019;
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  outline: none;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, #00f2fe, #4facfe);
  border: none;
  color: #000;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.btn-secondary {
  background: #1c2637;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ==========================================================================
   PIPELINE ARCHITECTURE BANNER & STEPPER MODEL BADGES
   ========================================================================== */
.pipeline-model-matrix-card {
  background: linear-gradient(135deg, rgba(13, 21, 33, 0.95), rgba(19, 31, 48, 0.95));
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  margin-bottom: 20px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4), inset 0 0 15px rgba(0, 242, 254, 0.05);
}

.matrix-card-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.offline-badge-pill {
  font-size: 0.75rem;
  color: var(--color-green);
  background: rgba(0, 230, 118, 0.12);
  border: 1px solid rgba(0, 230, 118, 0.35);
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.pipeline-model-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.model-flow-step {
  flex: 1;
  min-width: 170px;
  background: rgba(11, 16, 25, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  transition: all 0.25s ease;
}

.model-flow-step:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.15);
}

.model-flow-step.highlight-asr {
  border-left: 3px solid #00f2fe;
}

.model-flow-step.highlight-trans {
  border-left: 3px solid #b388ff;
}

.model-flow-step.highlight-tts {
  border-left: 3px solid #00e676;
}

.flow-step-number {
  font-size: 0.68rem;
  font-weight: 800;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

.flow-step-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: #fff;
}

.flow-step-model {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-cyan);
  font-family: 'Fira Code', monospace;
}

.model-flow-step.highlight-trans .flow-step-model {
  color: #b388ff;
}

.model-flow-step.highlight-tts .flow-step-model {
  color: #00e676;
}

.flow-step-file {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.flow-arrow {
  color: rgba(255, 255, 255, 0.35);
  font-size: 1.1rem;
  font-weight: bold;
  user-select: none;
}

.lcd-model-pill {
  font-size: 0.65rem;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.3);
  font-family: monospace;
  font-weight: 600;
}

.step-model-tag {
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--accent-cyan);
  font-family: monospace;
  margin-left: 6px;
}

/* ==========================================================================
   BACKEND DRAWER & TOGGLE BUTTON
   ========================================================================== */
.btn-backend-toggle {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(0, 242, 254, 0.4);
  color: #fff;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.8px;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.btn-backend-toggle:hover {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.2), rgba(99, 102, 241, 0.2));
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.35);
  transform: translateY(-1px);
}

.backend-drawer-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(4, 7, 13, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.backend-drawer-content {
  background: #0d1420;
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 1240px;
  height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), inset 0 0 25px rgba(0, 242, 254, 0.05);
  overflow: hidden;
}

.backend-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(18, 24, 36, 0.95);
}

.backend-drawer-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.backend-title-icon {
  font-size: 1.6rem;
}

.backend-drawer-title h3 {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #fff;
}

.backend-drawer-title p {
  font-size: 0.76rem;
  color: var(--text-secondary);
}

.btn-close-backend {
  background: rgba(255, 23, 68, 0.12);
  border: 1px solid rgba(255, 23, 68, 0.4);
  color: #ff5252;
  font-weight: 700;
  font-size: 0.8rem;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.btn-close-backend:hover {
  background: rgba(255, 23, 68, 0.25);
  box-shadow: 0 0 12px rgba(255, 23, 68, 0.4);
}

.backend-drawer-nav {
  display: flex;
  gap: 8px;
  padding: 12px 24px;
  background: rgba(11, 16, 25, 0.95);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
}

.backend-tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}

.backend-tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.backend-tab-btn.active {
  background: rgba(0, 242, 254, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
}

.backend-drawer-panes {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.backend-pane {
  display: none;
}

.backend-pane.active {
  display: block;
}