:root {
  --primary: #4294E3;
  --secondary: #0062CC;
  --light: #F0F6FF;
  --dark: #262B47;
}

/* Base Gradients */
.text-primary-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary), #0078D7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-secondary-gradient {
  background: linear-gradient(135deg, var(--secondary), var(--primary), #1E90FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.bg-primary-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary), #0078D7);
}

.bg-secondary-gradient {
  background: linear-gradient(135deg, var(--secondary), var(--primary), #1E90FF);
}

/* General Element Styling */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--light);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px; /* Base font size for better readability */
  letter-spacing: 0.01em; /* Increased letter spacing for better readability */
}

h1, h2, .fw-bold {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-weight: 700 !important;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0.005em; /* Slightly increased letter spacing for headings */
}

h3, h4, .fw-semi-bold {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-weight: 600 !important;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0.005em; /* Slightly increased letter spacing for headings */
}

h5, h6, .fw-medium {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-weight: 500 !important;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0.005em; /* Slightly increased letter spacing for headings */
}

/* Enhanced AppBar */
.MuiAppBar-root {
  background: linear-gradient(135deg, var(--primary), var(--secondary), #0078D7) !important;
  box-shadow: 0 4px 12px rgba(0, 98, 204, 0.15) !important;
}

/* Updated Drawer */
.MuiDrawer-paper {
  background-color: white !important;
  border-right: 1px solid rgba(0, 0, 0, 0.05) !important;
}

/* Enhanced Buttons */
.MuiButton-contained {
  background: linear-gradient(135deg, var(--primary), var(--secondary), #0078D7) !important;
  color: white !important;
  border-radius: 50px !important;
  padding: 8px 25px !important;
  transition: 0.5s !important;
  box-shadow: 0 2px 8px rgba(0, 98, 204, 0.15) !important;
}

.MuiButton-contained:hover {
  background: linear-gradient(135deg, #0078D7, var(--secondary), var(--primary)) !important;
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0, 98, 204, 0.25) !important;
}

.MuiButton-outlined {
  border-radius: 50px !important;
  border: 1px solid var(--primary) !important;
  color: var(--primary) !important;
  padding: 8px 25px !important;
  transition: 0.5s !important;
}

.MuiButton-outlined:hover {
  background-color: rgba(66, 148, 227, 0.1) !important;
  transform: translateY(-3px);
}

/* Card Styling */
.MuiCard-root {
  border-radius: 15px !important;
  overflow: hidden !important;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08) !important;
  transition: 0.5s !important;
}

.MuiCard-root:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12) !important;
}

.MuiCardContent-root {
  padding: 20px !important;
}

/* Zone Cards */
.zone-card {
  border-radius: 15px !important;
  background-color: white !important;
  transition: all 0.3s ease !important;
}

.zone-card.playing {
  border: 2px solid var(--primary) !important;
  box-shadow: 0 8px 15px rgba(66, 148, 227, 0.2) !important;
}

.zone-card-header {
  padding: 15px;
  background: linear-gradient(135deg, var(--primary), var(--secondary), #0078D7);
  color: white;
  border-radius: 15px 15px 0 0;
  box-shadow: 0 2px 6px rgba(0, 98, 204, 0.1);
}

/* Audio Player Controls */
.player-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 16px;
}

.player-controls .MuiIconButton-root {
  margin: 0 8px;
  transition: all 0.3s;
}

.player-controls .MuiIconButton-root:hover {
  transform: scale(1.1);
}

.player-progress {
  height: 8px !important;
  border-radius: 4px !important;
  background-color: rgba(0, 98, 204, 0.1) !important;
}

.player-progress .MuiSlider-track {
  background: linear-gradient(to right, var(--primary), var(--secondary), #0078D7);
}

.player-progress .MuiSlider-thumb {
  background-color: var(--primary);
  box-shadow: 0 0 8px rgba(0, 98, 204, 0.3);
}

/* Volume Slider */
.volume-slider .MuiSlider-thumb {
  width: 16px;
  height: 16px;
  background-color: var(--primary);
  box-shadow: 0 0 8px rgba(0, 98, 204, 0.3);
  transition: all 0.2s ease;
}

.volume-slider .MuiSlider-thumb:hover {
  box-shadow: 0 0 12px rgba(0, 98, 204, 0.5);
  transform: scale(1.1);
}

.volume-slider .MuiSlider-track {
  background: linear-gradient(to right, var(--primary), var(--secondary), #0078D7);
  height: 6px;
  border-radius: 3px;
}

.volume-slider .MuiSlider-rail {
  height: 6px;
  opacity: 0.3;
  border-radius: 3px;
}

/* Modal Styling */
.MuiDialog-paper {
  border-radius: 20px !important;
  overflow: hidden !important;
}

/* Improved Typography for MUI Components */
.MuiTypography-root {
  text-rendering: optimizeLegibility !important;
  -webkit-font-smoothing: antialiased !important;
  -moz-osx-font-smoothing: grayscale !important;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif !important;
  letter-spacing: 0.01em !important;
}

.dialog-title {
  background: linear-gradient(135deg, var(--primary), var(--secondary), #0078D7);
  color: white;
  padding: 16px 24px !important;
  box-shadow: 0 2px 10px rgba(0, 98, 204, 0.15);
}

/* Upcoming Tracks List */
.track-list .MuiListItem-root {
  border-radius: 8px;
  margin-bottom: 8px;
  transition: all 0.3s;
}

.track-list .MuiListItem-root:hover {
  background-color: rgba(66, 148, 227, 0.1);
}

/* Block Music Button */
.block-button.blocked {
  background-color: #f44336 !important;
  color: white !important;
}

/* Error Message */
.error-message {
  color: #f44336;
  background-color: rgba(244, 67, 54, 0.1);
  padding: 8px;
  border-radius: 4px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
}

.error-message .MuiSvgIcon-root {
  margin-right: 8px;
}

/* Loading Spinner */
.loading-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

.loading-spinner {
  color: var(--primary) !important;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary), #0078D7);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(0, 98, 204, 0.25);
  transition: all 0.3s;
}

.back-to-top:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Minimal Mobile Optimization - Only prevent horizontal scrolling */
@media screen and (max-width: 768px) {
  /* Prevent horizontal scroll */
  html, body {
    overflow-x: hidden !important;
    max-width: 100vw !important;
  }
  
  /* Center and narrow zone cards for mobile */
  .MuiGrid-container {
    justify-content: center !important;
  }
  
  .MuiGrid-item {
    max-width: 350px !important;
    margin: 0 auto !important;
  }
  
  .MuiCard-root {
    transform: scale(0.95) !important;
    margin: 0.5rem auto !important;
    max-width: 350px !important;
  }
}