/**
 * Identity Converse Website - Responsive Styles
 * Mobile-first responsive design for all screen sizes
 */

/* ========================================
   TABLET STYLES (max-width: 1024px)
   ======================================== */

@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }

  .container {
    padding: 0 var(--spacing-lg);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

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

/* ========================================
   MOBILE STYLES (max-width: 768px)
   ======================================== */

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
    --spacing-3xl: 3rem;
    --spacing-2xl: 2rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  /* Navigation */
  .navbar-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px var(--spacing-xl) var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    transition: right var(--transition-slow);
    z-index: var(--z-modal);
  }

  .navbar-menu.active {
    right: 0;
  }

  .navbar-toggle {
    display: block;
    z-index: calc(var(--z-modal) + 1);
  }

  .navbar-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .navbar-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .navbar-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .navbar-menu a {
    width: 100%;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-gray-200);
  }

  /* Hero Section */
  .hero {
    min-height: auto;
    padding: 100px 0 var(--spacing-3xl);
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero .subheadline {
    font-size: 1.25rem;
  }

  .hero p {
    font-size: var(--font-size-base);
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  /* Sections */
  .section {
    padding: var(--spacing-2xl) 0;
  }

  .section-lg {
    padding: var(--spacing-3xl) 0;
  }

  .section-header {
    margin-bottom: var(--spacing-2xl);
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }

  .section-subtitle {
    font-size: var(--font-size-base);
  }

  /* Grids */
  .grid,
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  /* Cards */
  .card {
    padding: var(--spacing-lg);
  }

  .query-card {
    padding: var(--spacing-md);
  }

  .query-card:hover {
    transform: translateX(4px);
  }

  /* Comparison Section */
  .comparison {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .comparison-card {
    padding: var(--spacing-lg);
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .footer-brand {
    grid-column: auto;
  }

  /* Forms */
  .btn-lg {
    padding: 0.875rem 1.5rem;
    font-size: var(--font-size-base);
  }

  /* Products Page */
  .product-card {
    padding: var(--spacing-xl);
  }

  .product-logo {
    max-width: 150px;
    height: 80px;
  }

  /* Video Wrapper */
  .video-wrapper {
    border-radius: var(--radius-xl);
  }
}

/* ========================================
   SMALL MOBILE (max-width: 480px)
   ======================================== */

@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.75rem;
    --font-size-4xl: 1.5rem;
    --font-size-3xl: 1.25rem;
    --spacing-xl: 1.5rem;
    --spacing-2xl: 1.75rem;
    --spacing-3xl: 2.5rem;
  }

  .navbar-brand {
    font-size: var(--font-size-lg);
  }

  .navbar-brand img {
    height: 32px;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero .subheadline {
    font-size: 1.125rem;
  }

  .btn {
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
  }

  .btn-lg {
    padding: 0.75rem 1.25rem;
    font-size: var(--font-size-base);
  }

  .card-icon {
    font-size: 2.5rem;
  }

  .stat-value {
    font-size: var(--font-size-4xl);
  }

  .stat-label {
    font-size: var(--font-size-lg);
  }

  .product-card {
    padding: var(--spacing-lg);
  }
}

/* ========================================
   LARGE DESKTOP (min-width: 1440px)
   ======================================== */

@media (min-width: 1440px) {
  .container {
    max-width: 1400px;
  }

  :root {
    --font-size-5xl: 3.5rem;
    --font-size-4xl: 2.5rem;
  }
}

/* ========================================
   ACCESSIBILITY & MOTION
   ======================================== */

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #0047ab;
    --color-primary-dark: #003380;
  }

  .btn-primary {
    border: 2px solid var(--color-white);
  }

  .card {
    border: 2px solid var(--color-gray-300);
  }
}

/* Dark mode support (optional - can be enabled if needed) */
@media (prefers-color-scheme: dark) {
  /* Uncomment to enable dark mode
  :root {
    --color-white: #1e293b;
    --color-gray-900: #f8fafc;
    --color-gray-800: #f1f5f9;
    --color-gray-700: #e2e8f0;
    --color-gray-600: #cbd5e1;
    --color-gray-500: #94a3b8;
    --color-gray-400: #64748b;
    --color-gray-300: #475569;
    --color-gray-200: #334155;
    --color-gray-100: #1e293b;
    --color-gray-50: #0f172a;
  }
  */
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
  /* Hide non-essential elements when printing */
  .navbar,
  .hero-buttons,
  .btn,
  .footer,
  .navbar-toggle,
  .social-links,
  .video-wrapper {
    display: none !important;
  }

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

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

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

  .card {
    box-shadow: none;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  a[href^="http"]:after {
    content: " (" attr(href) ")";
  }

  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }
}

/* ========================================
   LANDSCAPE ORIENTATION (Mobile)
   ======================================== */

@media (max-width: 768px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: 80px 0 var(--spacing-2xl);
  }

  .navbar .container {
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
  }
}

/* ========================================
   TOUCH DEVICE OPTIMIZATIONS
   ======================================== */

@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets for mobile devices */
  .btn {
    min-height: 44px;
    min-width: 44px;
  }

  .navbar-menu a {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .form-input,
  .form-select,
  .form-textarea {
    font-size: 16px; /* Prevents zoom on iOS */
  }

  /* Remove hover effects on touch devices */
  .card:hover,
  .query-card:hover,
  .product-card:hover,
  .btn-primary:hover {
    transform: none;
  }

  /* Add active states instead */
  .card:active {
    transform: scale(0.98);
  }

  .btn:active {
    transform: scale(0.96);
  }
}