/* Responsive Design for Bitcoin Tracker */

/* Tablet Styles (768px and below) */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

  /* Navigation */
  .nav-container {
    padding: 0 1rem;
  }

  .nav-brand h1 {
    font-size: 1.25rem;
  }

  .bitcoin-icon {
    font-size: 1.75rem;
  }

  /* Price Header */
  .price-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .price-main {
    padding: 1.5rem;
  }

  .price-value {
    font-size: 2.5rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .stat-card {
    padding: 1rem;
  }

  .stat-value {
    font-size: 1.125rem;
  }

  /* Chart Section */
  .chart-header {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }

  .chart-controls {
    flex-direction: column;
    gap: 0.75rem;
  }

  .time-selector {
    justify-content: center;
  }

  .chart-container {
    height: 300px;
    padding: 1rem;
  }

  /* Market Data */
  .market-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
  }

  .market-card {
    padding: 1rem;
  }

  .market-value {
    font-size: 1.25rem;
  }

  /* Alerts */
  .alerts-header {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }

  /* Live Indicator */
  .live-indicator {
    top: 4.5rem;
    right: 0.5rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
  }

  /* Connection Status */
  .connection-status {
    bottom: 0.5rem;
    right: 0.5rem;
  }

  .status-online,
  .status-offline {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
  }
}

/* Mobile Styles (480px and below) */
@media (max-width: 480px) {
  .main {
    padding: 1rem 0;
  }

  /* Navigation */
  .nav-container {
    height: 3.5rem;
  }

  .nav-brand {
    gap: 0.5rem;
  }

  .nav-brand h1 {
    font-size: 1.125rem;
  }

  .bitcoin-icon {
    font-size: 1.5rem;
  }

  .nav-actions {
    gap: 0.25rem;
  }

  .nav-btn {
    padding: 0.375rem;
  }

  /* Price Header */
  .price-main {
    padding: 1.25rem;
    text-align: center;
  }

  .price-value {
    font-size: 2rem;
  }

  .price-change {
    justify-content: center;
    font-size: 1rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .stat-card {
    padding: 0.75rem;
  }

  .stat-label {
    font-size: 0.75rem;
  }

  .stat-value {
    font-size: 1rem;
  }

  /* Chart Section */
  .chart-header h2 {
    font-size: 1.25rem;
  }

  .time-selector {
    flex-wrap: wrap;
    gap: 0.25rem;
  }

  .time-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
  }

  .chart-type-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
  }

  .chart-container {
    height: 250px;
    padding: 0.75rem;
  }

  /* Market Data */
  .market-data h2 {
    font-size: 1.25rem;
  }

  .market-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .market-card {
    padding: 0.75rem;
  }

  .market-label {
    font-size: 0.75rem;
  }

  .market-value {
    font-size: 1.125rem;
  }

  /* Alerts */
  .alerts-header h2 {
    font-size: 1.25rem;
  }

  .btn-primary {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }

  .alerts-list {
    padding: 1.5rem;
  }

  /* Mobile Menu Button */
  .mobile-menu-btn {
    display: flex;
  }

  /* Hide some elements on mobile */
  .chart-type-btn {
    display: none;
  }

  /* Live Indicator */
  .live-indicator {
    position: static;
    margin: 0 auto 1rem;
    width: fit-content;
  }

  /* Connection Status */
  .connection-status {
    position: static;
    text-align: center;
    margin-top: 1rem;
  }
}

/* Small Mobile Styles (360px and below) */
@media (max-width: 360px) {
  .container {
    padding: 0 0.75rem;
  }

  /* Navigation */
  .nav-container {
    padding: 0 0.75rem;
  }

  .nav-brand h1 {
    font-size: 1rem;
  }

  .bitcoin-icon {
    font-size: 1.25rem;
  }

  /* Price Header */
  .price-main {
    padding: 1rem;
  }

  .price-label {
    font-size: 1rem;
  }

  .price-value {
    font-size: 1.75rem;
  }

  .price-change {
    font-size: 0.875rem;
  }

  /* Chart */
  .chart-container {
    height: 200px;
    padding: 0.5rem;
  }

  .time-selector {
    padding: 0.125rem;
  }

  .time-btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
  }

  /* Market Cards */
  .market-card {
    padding: 0.5rem;
  }

  .market-value {
    font-size: 1rem;
  }

  /* Buttons */
  .btn-primary {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
  }
}

/* Large Desktop Styles (1200px and above) */
@media (min-width: 1200px) {
  .container {
    max-width: 1400px;
  }

  /* Price Header */
  .price-grid {
    gap: 3rem;
  }

  .price-main {
    padding: 3rem;
  }

  .price-value {
    font-size: 4rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .stat-card {
    padding: 2rem;
  }

  .stat-value {
    font-size: 1.5rem;
  }

  /* Chart */
  .chart-container {
    height: 500px;
    padding: 2rem;
  }

  /* Market Data */
  .market-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .market-card {
    padding: 2rem;
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  /* Remove hover effects and add touch feedback */
  .stat-card:hover,
  .market-card:hover {
    transform: none;
    box-shadow: var(--shadow);
  }

  .stat-card:active,
  .market-card:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
  }

  .nav-btn:hover {
    background: none;
    color: var(--text-secondary);
    border-color: var(--border);
  }

  .nav-btn:active {
    background: var(--surface);
    color: var(--text-primary);
  }

  .time-btn:not(.active):hover {
    background: none;
    color: var(--text-secondary);
  }

  .time-btn:not(.active):active {
    background: var(--border-light);
  }

  .chart-type-btn:hover {
    background: var(--background);
    color: var(--text-secondary);
  }

  .chart-type-btn:active {
    background: var(--surface);
  }

  .btn-primary:hover {
    background: var(--primary-color);
    transform: none;
  }

  .btn-primary:active {
    background: var(--primary-dark);
    transform: scale(0.98);
  }

  /* Increase touch targets */
  .nav-btn {
    min-width: 44px;
    min-height: 44px;
  }

  .time-btn {
    min-height: 44px;
    min-width: 44px;
  }

  .btn-primary {
    min-height: 44px;
  }
}

/* High DPI / Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .bitcoin-icon {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

/* Print Styles */
@media print {
  .nav,
  .live-indicator,
  .connection-status,
  .mobile-menu-btn,
  .nav-btn,
  .btn-primary,
  .chart-type-btn {
    display: none !important;
  }

  .main {
    padding: 0;
  }

  .price-main {
    background: none !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border);
  }

  .chart-container {
    height: auto;
    min-height: 300px;
  }

  * {
    box-shadow: none !important;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .loading-spinner {
    animation: none;
  }

  .live-dot {
    animation: none;
  }
}

/* Dark Mode Optimizations */
@media (prefers-color-scheme: dark) {
  [data-theme="auto"] {
    --background: #1a202c;
    --surface: #2d3748;
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #a0aec0;
    --border: #4a5568;
    --border-light: #2d3748;
  }

  .nav {
    background: rgba(26, 32, 44, 0.95);
  }
}