/**
 * Fitness Pro - Responsive Styles
 * Mobile-first responsive design with breakpoints
 */

/* Mobile First Approach */
/* Base styles are mobile-first, then we add tablet and desktop enhancements */

/* Mobile: 320px - 767px (base styles in main.css) */

/* Tablet: 768px - 1023px */
@media (min-width: 768px) {
  /* Container */
  .container {
    padding: 0 var(--spacing-lg);
  }

  /* Typography */
  .section__title {
    font-size: var(--font-size-4xl);
  }

  .hero__title {
    font-size: var(--font-size-6xl);
  }

  /* Header */
  .nav__toggle {
    display: none;
  }

  .nav__list {
    display: flex !important;
    flex-direction: row;
    position: static;
    background: none;
    box-shadow: none;
    padding: 0;
    margin: 0;
  }

  .nav__link {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }

  /* Hero Section */
  .hero {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    min-height: 70vh;
  }

  .hero__title {
    font-size: var(--font-size-6xl);
  }

  .hero__description {
    font-size: var(--font-size-xl);
  }

  .hero__illustration {
    height: 400px;
  }

  /* Stats */
  .stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
  }

  /* IMC Calculator */
  .imc-calculator {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
  }

  /* Training Section */
  .training-filters {
    justify-content: center;
    gap: var(--spacing-lg);
  }

  .filter-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
  }

  .training-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
  }

  /* Nutrition Section */
  .nutrition-tabs {
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-md);
  }

  .nutrition-tab {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
  }

  /* Timer Section */
  .timer-display {
    padding: var(--spacing-2xl);
  }

  .timer-minutes,
  .timer-seconds {
    font-size: var(--font-size-6xl);
  }

  .timer-controls {
    gap: var(--spacing-lg);
  }

  .timer-controls .btn {
    min-width: 120px;
    padding: var(--spacing-lg) var(--spacing-xl);
  }

  /* Form elements */
  .form-group {
    margin-bottom: var(--spacing-xl);
  }

  .form-input,
  .form-select {
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
  }

  /* Buttons */
  .btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
  }

  .btn--large {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
  }

  /* Cards */
  .training-card,
  .meal-card {
    padding: var(--spacing-xl);
  }

  /* Modal */
  .modal__content {
    max-width: 80vw;
    max-height: 80vh;
  }

  /* Footer */
  .footer__content {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
  }
}

/* Desktop: 1024px - 1279px */
@media (min-width: 1024px) {
  /* Container */
  .container {
    max-width: 1200px;
    padding: 0 var(--spacing-xl);
  }

  /* Typography */
  .section__title {
    font-size: var(--font-size-5xl);
  }

  .hero__title {
    font-size: var(--font-size-7xl);
  }

  /* Navigation */
  .nav__list {
    gap: var(--spacing-xl);
  }

  .nav__link {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
  }

  /* Hero Section */
  .hero {
    min-height: 80vh;
  }

  .hero__illustration {
    height: 500px;
  }

  /* Stats */
  .stats {
    gap: var(--spacing-2xl);
  }

  .stat-card {
    padding: var(--spacing-2xl);
  }

  /* IMC Calculator */
  .imc-form {
    padding: var(--spacing-3xl);
  }

  .imc-result {
    padding: var(--spacing-3xl);
  }

  /* Training Section */
  .training-grid {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
  }

  /* Nutrition Section */
  .nutrition-content {
    padding: var(--spacing-3xl);
  }

  /* Timer Section */
  .timer-container {
    max-width: 700px;
  }

  /* Form elements */
  .form-input,
  .form-select {
    padding: var(--spacing-lg);
    font-size: var(--font-size-lg);
  }

  /* Modal */
  .modal__body {
    padding: var(--spacing-3xl);
  }

  /* Footer */
  .footer {
    padding: var(--spacing-4xl) 0 var(--spacing-2xl);
  }
}

/* Large Desktop: 1280px+ */
@media (min-width: 1280px) {
  /* Container */
  .container {
    max-width: 1400px;
  }

  /* Typography */
  .hero__title {
    font-size: var(--font-size-8xl);
  }

  /* Hero Section */
  .hero {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-4xl);
    min-height: 90vh;
  }

  .hero__illustration {
    height: 600px;
  }

  /* Stats */
  .stats {
    gap: var(--spacing-3xl);
  }

  /* Training Section */
  .training-grid {
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  }

  /* Nutrition Section */
  .meals-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
  }

  /* Timer Section */
  .timer-display {
    padding: var(--spacing-3xl);
  }

  .timer-minutes,
  .timer-seconds {
    font-size: var(--font-size-7xl);
  }
}

/* Ultra-wide: 1600px+ */
@media (min-width: 1600px) {
  /* Container */
  .container {
    max-width: 1600px;
  }

  /* Hero Section */
  .hero {
    gap: var(--spacing-5xl);
    min-height: 100vh;
  }

  .hero__illustration {
    height: 700px;
  }

  /* Grid layouts */
  .training-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .meals-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* High DPI and Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Ensure crisp images and icons */
  img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }

  .hero__illustration i,
  .stat-card__icon i {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}

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

  html {
    scroll-behavior: auto;
  }

  .hero__illustration::before {
    animation: none;
  }

  .timer-separator {
    animation: none;
  }
}

/* Print Styles */
@media print {
  /* Hide unnecessary elements */
  .header,
  .nav,
  .footer,
  .theme-toggle,
  .btn,
  .modal,
  .offline-indicator,
  .error-notification {
    display: none !important;
  }

  /* Optimize layout for print */
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
    background: #fff;
  }

  .main {
    margin-top: 0;
  }

  .section {
    padding: 1rem 0;
    page-break-inside: avoid;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  /* Ensure text is readable */
  .section__title,
  .section__description {
    color: #000 !important;
  }

  .training-card,
  .meal-card,
  .stat-card {
    border: 1px solid #ccc;
    box-shadow: none;
    page-break-inside: avoid;
  }

  /* Show URLs for links */
  a[href]:after {
    content: " (" attr(href) ")";
    font-size: 10pt;
    color: #666;
  }

  /* Ensure tables fit */
  table {
    width: 100%;
    border-collapse: collapse;
  }

  th, td {
    border: 1px solid #ccc;
    padding: 0.5rem;
  }

  /* Hide decorative elements */
  .hero__illustration,
  .training-card__image {
    display: none;
  }
}

/* Dark mode responsive adjustments */
@media (prefers-color-scheme: dark) and (max-width: 768px) {
  /* Ensure proper contrast on mobile dark mode */
  .nav__list {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
  }

  .modal__content {
    background: var(--bg-secondary);
    border-color: var(--border-color);
  }

  .offline-indicator {
    background: var(--color-warning);
    color: var(--color-gray-900);
  }

  .error-notification {
    background: var(--color-danger);
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets */
  .btn,
  .nav__link,
  .filter-btn,
  .nutrition-tab {
    min-height: 44px;
    min-width: 44px;
  }

  /* Remove hover effects */
  .btn:hover,
  .nav__link:hover,
  .filter-btn:hover,
  .nutrition-tab:hover {
    transform: none;
    box-shadow: none;
  }

  /* Active states for touch */
  .btn:active,
  .nav__link:active,
  .filter-btn:active,
  .nutrition-tab:active {
    transform: scale(0.98);
  }

  /* Larger form elements */
  .form-input,
  .form-select {
    min-height: 44px;
    font-size: 16px; /* Prevent zoom on iOS */
  }
}

/* Landscape orientation */
@media (orientation: landscape) and (max-width: 896px) {
  /* Adjust hero for landscape mobile */
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    min-height: 100vh;
  }

  .hero__illustration {
    height: 300px;
    order: -1;
  }

  /* Adjust navigation for landscape */
  .nav__list {
    max-height: 200px;
    overflow-y: auto;
  }

  /* Make forms more compact */
  .form-group {
    margin-bottom: 1rem;
  }

  .imc-calculator {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* Custom scrollbar for webkit browsers */
@media (min-width: 768px) {
  ::-webkit-scrollbar {
    width: 8px;
  }

  ::-webkit-scrollbar-track {
    background: var(--bg-secondary);
  }

  ::-webkit-scrollbar-thumb {
    background: var(--color-gray-400);
    border-radius: var(--radius-full);
  }

  ::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-500);
  }

  /* Dark mode scrollbar */
  [data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--bg-secondary);
  }

  [data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--color-gray-600);
  }

  [data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-500);
  }
}

/* Focus styles for accessibility */
@media (prefers-reduced-motion: no-preference) {
  :focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }

  .btn:focus-visible,
  .nav__link:focus-visible,
  .filter-btn:focus-visible,
  .nutrition-tab:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }
}

/* Responsive utilities */
@media (max-width: 767px) {
  .hide-mobile {
    display: none !important;
  }
  
  .show-mobile {
    display: block !important;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .hide-tablet {
    display: none !important;
  }
  
  .show-tablet {
    display: block !important;
  }
}

@media (min-width: 1024px) {
  .hide-desktop {
    display: none !important;
  }
  
  .show-desktop {
    display: block !important;
  }
}

/* Responsive text utilities */
.text-responsive {
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.text-responsive-large {
  font-size: clamp(1.25rem, 3vw, 2rem);
}

.text-responsive-xl {
  font-size: clamp(1.5rem, 4vw, 3rem);
}