/* Custom styles for WorVox */

/* CSS Variables */
:root {
  /* Mobile viewport height fix (set by JavaScript) */
  --vh: 1vh;
  
  /* Touch target sizes */
  --touch-target-min: 44px;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  margin: 0;
  padding: 0;
  /* Prevent text selection on mobile */
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  /* Use custom viewport height */
  min-height: 100vh;
  min-height: calc(var(--vh, 1vh) * 100);
}

/* Mobile touch optimization */
button, a, [role="button"] {
  /* Better touch targets (min 44x44px recommended) */
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
  /* Prevent double-tap zoom */
  touch-action: manipulation;
  /* Remove tap highlight */
  -webkit-tap-highlight-color: transparent;
}

/* Smooth scrolling for mobile */
html {
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

/* Prevent overscroll bounce on iOS */
body {
  overscroll-behavior-y: contain;
}

/* Full height containers using custom vh */
.full-height {
  height: 100vh;
  height: calc(var(--vh, 1vh) * 100);
}

/* Recording animation */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

.recording-animation {
  animation: pulse 1.5s ease-in-out infinite;
}

/* Message bubble animations */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.message-user {
  animation: slideInRight 0.3s ease-out;
}

.message-assistant {
  animation: slideInLeft 0.3s ease-out;
}

/* Smooth transitions */
.transition-all {
  transition: all 0.3s ease;
}

/* Custom scrollbar */
.chat-container::-webkit-scrollbar {
  width: 8px;
}

.chat-container::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

.chat-container::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 10px;
}

.chat-container::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* Button hover effects */
.btn-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Loading spinner */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  animation: spin 1s linear infinite;
}

/* Wave animation for audio playback */
@keyframes wave {
  0%, 100% {
    height: 10px;
  }
  50% {
    height: 20px;
  }
}

.wave-bar {
  animation: wave 1s ease-in-out infinite;
}

.wave-bar:nth-child(2) {
  animation-delay: 0.1s;
}

.wave-bar:nth-child(3) {
  animation-delay: 0.2s;
}

.wave-bar:nth-child(4) {
  animation-delay: 0.3s;
}

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Card hover effect */
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Microphone button pulse */
@keyframes micPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(239, 68, 68, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
  }
}

.mic-recording {
  animation: micPulse 1.5s infinite;
}

/* Gamification animations */
@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-slide-in-right {
  animation: slide-in-right 0.3s ease-out;
}

.animate-fade-in {
  animation: fade-in 0.3s ease-out;
}

.animate-scale-in {
  animation: scale-in 0.3s ease-out;
}

/* Modal fade in animation */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-fadeIn {
  animation: fadeIn 0.3s ease-out;
}