static/styles.css

/* ============================================
   Real-time VAD-ASR Pipeline - Styles
   Premium dark theme with glassmorphism
   ============================================ */

:root {
  /* Color palette */
  --bg-primary: #0a0a1a;
  --bg-secondary: #12122a;
  --bg-gradient-start: #0f0f23;
  --bg-gradient-end: #1a1a3e;

  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --accent-tertiary: #a855f7;
  --accent-glow: rgba(99, 102, 241, 0.3);

  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;

  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;

  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

  /* Typography */
  --font-primary: "Inter", "Noto Sans Arabic", sans-serif;
  --font-arabic: "Noto Sans Arabic", "Inter", sans-serif;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 50%;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

/* Reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-arabic);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* App container */
.app-container {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
}

/* Animated background */
.bg-gradient {
  position: fixed;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--bg-gradient-start) 0%,
    var(--bg-gradient-end) 100%
  );
  z-index: -2;
}

.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(80px);
  opacity: 0.4;
  animation: float 20s infinite ease-in-out;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--accent-primary);
  top: -100px;
  right: -100px;
  animation-delay: 0s;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: var(--accent-secondary);
  bottom: 20%;
  left: -100px;
  animation-delay: -7s;
}

.orb-3 {
  width: 250px;
  height: 250px;
  background: var(--accent-tertiary);
  bottom: -50px;
  right: 20%;
  animation-delay: -14s;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -30px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

/* Glass card effect */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-xl);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--accent-primary);
}

.logo h1 {
  font-size: 1.25rem;
  font-weight: 600;
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-tertiary)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.connection-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  font-size: 0.875rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--error);
  transition: var(--transition-normal);
}

.connection-status.connected .status-dot {
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
}

.status-text {
  color: var(--text-secondary);
}

/* Main content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.content-wrapper {
  display: flex;
  flex-direction: row;
  width: 100%;
  gap: var(--spacing-lg);
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
}

.center-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xl);
  min-width: 300px;
  max-width: 800px; /* Keep the original limit for the center part */
}

/* Side Panel & Confidence Table */
.side-panel {
  width: 300px;
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-height: 80vh;
  position: sticky;
  top: var(--spacing-md);
  margin-top: var(--spacing-xl); /* Align with content */
}

.side-panel h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  text-align: center;
}

.confidence-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-sm);
}

.confidence-value {
  font-weight: 700;
  color: var(--success);
}
.confidence-value.low {
  color: var(--error);
}
.confidence-value.medium {
  color: var(--warning);
}

.table-container {
  overflow-y: auto;
  flex: 1;
  border-radius: var(--radius-sm);
  max-height: 400px;
}

.confidence-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.confidence-table th,
.confidence-table td {
  padding: var(--spacing-xs) var(--spacing-sm);
  text-align: right;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.confidence-table th {
  color: var(--text-secondary);
  font-weight: 500;
  position: sticky;
  top: 0;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(5px);
}

.confidence-table td:last-child {
  text-align: left;
  direction: ltr; /* numbers look better LTR */
  font-variant-numeric: tabular-nums;
}

@media (max-width: 900px) {
  .content-wrapper {
    flex-direction: column;
    align-items: center;
  }
  .side-panel {
    width: 100%;
    max-width: 500px;
    position: static;
    margin-top: 0;
  }
}

/* Status card */
.status-card {
  width: 100%;
  padding: var(--spacing-xl);
  text-align: center;
}

.status-indicator {
  position: relative;
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pulse-ring {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  border: 2px solid var(--accent-primary);
  opacity: 0;
  transform: scale(0.8);
  transition: var(--transition-normal);
}

.status-indicator.speaking .pulse-ring {
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

.status-icon {
  width: 48px;
  height: 48px;
  color: var(--text-secondary);
  transition: var(--transition-normal);
}

.status-indicator.speaking .status-icon {
  color: var(--success);
  filter: drop-shadow(0 0 10px var(--success));
}

.status-indicator.silence .status-icon {
  color: var(--warning);
  filter: drop-shadow(0 0 10px var(--warning));
}

.status-indicator.transcribing .status-icon {
  color: var(--accent-primary);
  filter: drop-shadow(0 0 10px var(--accent-primary));
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.status-message {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.probability-bar {
  width: 100%;
  max-width: 300px;
  height: 4px;
  background: var(--glass-bg);
  border-radius: var(--radius-full);
  margin: 0 auto;
  overflow: hidden;
}

.probability-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(
    90deg,
    var(--accent-primary),
    var(--accent-tertiary)
  );
  border-radius: var(--radius-full);
  transition: width var(--transition-fast);
}

/* Microphone button */
.mic-button {
  position: relative;
  width: 100px;
  height: 100px;
  border: none;
  border-radius: var(--radius-full);
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-secondary)
  );
  cursor: pointer;
  transition: var(--transition-normal);
  box-shadow: 0 4px 30px var(--accent-glow);
}

.mic-button:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 40px var(--accent-glow);
}

.mic-button:active {
  transform: scale(0.98);
}

.mic-button-inner {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mic-icon,
.stop-icon {
  width: 40px;
  height: 40px;
  color: white;
  transition: var(--transition-normal);
}

.hidden {
  display: none !important;
}

.mic-button.recording {
  background: linear-gradient(135deg, var(--error), #dc2626);
  animation: glow 1.5s infinite;
}

@keyframes glow {
  0%,
  100% {
    box-shadow: 0 4px 30px rgba(239, 68, 68, 0.4);
  }
  50% {
    box-shadow: 0 8px 50px rgba(239, 68, 68, 0.6);
  }
}

.mic-ripple {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  border: 2px solid currentColor;
  color: var(--accent-primary);
  opacity: 0;
  transform: scale(1);
  pointer-events: none;
}

.mic-button.recording .mic-ripple {
  animation: ripple 1.5s infinite;
  color: var(--error);
}

@keyframes ripple {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

/* Waveform container */
.waveform-container {
  width: 100%;
  padding: var(--spacing-md);
  overflow: hidden;
}

#waveformCanvas {
  width: 100%;
  height: 80px;
  display: block;
}

/* Transcription card */
.transcription-card {
  width: 100%;
  padding: var(--spacing-xl);
}

.transcription-card h2 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.transcription-content {
  min-height: 60px;
  padding: var(--spacing-lg);
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.transcription-content p {
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
  margin: 0;
}

.placeholder-text {
  color: var(--text-muted) !important;
  font-size: 1rem !important;
  font-weight: 400 !important;
}

.transcription-history {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-height: 200px;
  overflow-y: auto;
}

.history-item {
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-right: 3px solid var(--accent-primary);
}

/* Footer */
.footer {
  text-align: center;
  padding: var(--spacing-lg) 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--glass-bg);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-secondary);
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .header {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .mic-button {
    width: 80px;
    height: 80px;
  }

  .mic-icon,
  .stop-icon {
    width: 32px;
    height: 32px;
  }

  .transcription-content p {
    font-size: 1.25rem;
  }
}

/* Animations for new transcriptions */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.transcription-content.new {
  animation: slideIn 0.3s ease;
}

.history-item.new {
  animation: slideIn 0.3s ease;
}