/* Responsive Design for Car Tuning App */

/* Mobile First Approach */
@media (max-width: 768px) {
  /* Homepage Mobile Styles */
  .background {
    padding: 1rem;
  }
  
  .background h1 {
    font-size: 2rem;
    margin-top: 20px;
  }
  
  .profile-wrapper {
    top: 10px;
    right: 10px;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .user-info {
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
  }
  
  .profile-photo {
    width: 40px;
    height: 40px;
  }
  
  .sidebar {
    width: 100%;
    left: -100%;
  }
  
  .sidebar.active {
    left: 0;
  }
  
  .button-container {
    margin-top: 2rem;
  }
  
  #playButton img {
    width: 120px;
  }
  
  #riveCanvas {
    width: 300px;
    height: 300px;
  }
  
  /* Login Page Mobile Styles */
  .container {
    grid-template-columns: 1fr;
    padding: 1rem;
    gap: 1rem;
  }
  
  .logo-section {
    padding: 1rem;
    order: 2;
  }
  
  .logo-section h1 {
    font-size: 2rem;
  }
  
  .logo-section p {
    font-size: 1rem;
  }
  
  .auth-container {
    order: 1;
    min-height: auto;
  }
  
  .login-box {
    padding: 1.5rem;
  }
  
  .message-container {
    top: 1rem;
    right: 1rem;
    left: 1rem;
  }
  
  /* Car Selection Mobile Styles */
  .car-selection {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    padding: 1rem;
  }
  
  .car-card {
    border-radius: 8px;
  }
  
  .car-card img {
    height: 100px;
  }
  
  .car-card p {
    font-size: 0.9rem;
    padding: 0.25rem;
  }
  
  .modal-content {
    margin: 1rem;
    padding: 1.5rem;
  }
  
  /* Tuning Page Mobile Styles */
  body {
    flex-direction: column;
  }
  
  .sidebar {
    position: relative;
    width: 100%;
    height: auto;
    padding: 1rem;
    background: rgba(0,0,0,0.8);
  }
  
  .tune-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
  
  .tune-option {
    padding: 0.6rem;
    font-size: 0.9rem;
    text-align: center;
  }
  
  .model-viewer-wrapper {
    position: relative;
    width: 100%;
    height: 50vh;
    top: auto;
    left: auto;
    transform: none;
    margin-top: 1rem;
  }
  
  .rim-container {
    position: relative;
    width: 100%;
    height: auto;
    background: rgba(0,0,0,0.9);
    padding: 1rem;
    display: none;
  }
  
  .rim-container.active {
    display: block;
  }
  
  .rim-container model-viewer {
    width: 100%;
    height: 150px;
    margin-bottom: 0.5rem;
  }
  
  .material-select,
  .finish-select {
    font-size: 0.8rem;
    padding: 0.4rem;
  }
  
  #colorPicker {
    height: 2rem;
  }
}

/* Tablet Styles */
@media (min-width: 769px) and (max-width: 1024px) {
  .container {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
  }
  
  .car-selection {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.25rem;
  }
  
  .tune-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }
  
  .model-viewer-wrapper {
    width: 70%;
    height: 70%;
  }
}

/* Large Desktop Styles */
@media (min-width: 1025px) {
  .container {
    max-width: 1400px;
  }
  
  .car-selection {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 2rem;
  }
  
  .tune-options {
    display: flex;
    flex-direction: column;
  }
  
  .model-viewer-wrapper {
    width: 60%;
    height: 80%;
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  .tune-option,
  .back-button,
  .car-card {
    min-height: 44px; /* iOS touch target minimum */
  }
  
  .profile-photo {
    min-width: 44px;
    min-height: 44px;
  }
  
  .sidebar a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  
  /* Remove hover effects on touch devices */
  .tune-option:hover,
  .back-button:hover,
  .car-card:hover,
  .profile-photo:hover,
  .sidebar a:hover {
    transform: none;
    box-shadow: none;
    background-color: inherit;
  }
}

/* High DPI Display Optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .logo {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
  
  .car-card img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Landscape Mobile Orientation */
@media (max-width: 768px) and (orientation: landscape) {
  .background {
    padding: 0.5rem;
  }
  
  .background h1 {
    font-size: 1.5rem;
    margin-top: 10px;
  }
  
  .button-container {
    margin-top: 1rem;
  }
  
  #playButton img {
    width: 100px;
  }
  
  #riveCanvas {
    width: 250px;
    height: 250px;
  }
  
  .sidebar {
    width: 250px;
  }
  
  .tune-options {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .model-viewer-wrapper {
    height: 60vh;
  }
}

/* Print Styles */
@media print {
  .profile-wrapper,
  .sidebar,
  .cursor,
  .button-container,
  .modal-overlay {
    display: none !important;
  }
  
  .background {
    background: white !important;
    color: black !important;
  }
  
  .background h1 {
    color: black !important;
  }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .cursor {
    display: none !important;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  .login-box {
    background: rgba(30, 30, 30, 0.95);
    color: white;
  }
  
  .login-box h2,
  .login-box p {
    color: white;
  }
  
  .input-group input {
    background: rgba(50, 50, 50, 0.8);
    color: white;
    border-color: #555;
  }
  
  .input-group input:focus {
    border-color: #667eea;
  }
  
  .input-group input::placeholder {
    color: #999;
  }
  
  .modal-content {
    background: #2a2a2a;
    color: white;
  }
  
  .modal-header h2 {
    color: white;
  }
  
  .project-item {
    background: rgba(50, 50, 50, 0.8);
    border-color: #555;
  }
  
  .project-item:hover {
    background: rgba(70, 70, 70, 0.8);
  }
}

/* Focus Management for Keyboard Navigation */
.tune-option:focus,
.back-button:focus,
.car-card:focus,
.profile-photo:focus,
.sidebar a:focus {
  outline: 2px solid #667eea;
  outline-offset: 2px;
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}