/* Responsive Design - Mobile First Approach */

/* Extra Small Devices (Phones, 320px and up) */
@media (max-width: 320px) {
  .container {
    padding: 0 var(--space-4);
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-md);
  }
  
  .section {
    padding: var(--space-12) 0;
  }
}

/* Small Devices (Phones, 576px and up) */
@media (min-width: 576px) {
  .services-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

/* Medium Devices (Tablets, 768px and up) */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
  }
  
  .services-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  }
  
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
  
  .footer-col:last-child {
    grid-column: 1 / -1;
    margin-top: var(--space-8);
  }
}

/* Large Devices (Desktops, 992px and up) */
@media (min-width: 992px) {
  .hero-title {
    font-size: var(--font-size-5xl);
  }
  
  .expertise-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
  
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
  
  .footer-col:last-child {
    grid-column: auto;
    margin-top: 0;
  }
}

/* Extra Large Devices (Large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .container {
    max-width: 1200px;
  }
}

/* Mobile Navigation */
@media (max-width: 991px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--space-8);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-item {
    width: 100%;
    text-align: center;
  }
  
  .nav-link {
    display: block;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-gray-medium);
  }
  
  .nav-link:last-child {
    border-bottom: none;
  }
  
  .phone-link {
    margin-top: var(--space-4);
    display: inline-block;
  }
  
  /* Menu toggle animation */
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
}

/* Mobile Layout Adjustments */
@media (max-width: 767px) {
  .hero {
    min-height: 70vh;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .section-subtitle {
    font-size: var(--font-size-lg);
  }
  
  .expertise-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .expertise-content {
    padding-right: 0;
    order: 2;
  }
  
  .expertise-visual {
    order: 1;
  }
  
  .expertise-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
  
  .stat-number {
    font-size: var(--font-size-3xl);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .footer-col {
    text-align: center;
  }
  
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-actions .btn {
    width: 100%;
    max-width: 300px;
  }
}

/* Very Small Devices (320px - 575px) */
@media (max-width: 575px) {
  .hero-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-4);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-md);
    margin-bottom: var(--space-6);
  }
  
  .hero-actions {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .hero-actions .btn {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .service-card {
    padding: var(--space-6);
  }
  
  .expertise-stats {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .stat {
    text-align: center;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonial-card {
    padding: var(--space-6);
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  .service-card:hover {
    transform: none;
  }
  
  .btn:hover {
    transform: none;
  }
  
  .nav-link:hover::after {
    display: none;
  }
}

/* High DPI Screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .logo {
    font-weight: 600;
  }
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .btn {
    display: none !important;
  }
  
  .hero {
    background: none !important;
    color: var(--color-black) !important;
    min-height: auto;
  }
  
  .hero-title {
    color: var(--color-black) !important;
  }
  
  .section {
    padding: var(--space-8) 0 !important;
    break-inside: avoid;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.4;
  }
  
  h1, h2, h3 {
    break-after: avoid;
  }
}

/* Reduced Motion */
@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;
  }
  
  .service-card:hover,
  .btn:hover {
    transform: none;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --color-black: #ffffff;
    --color-white: #1a1a1a;
    --color-gray-light: #2d2d2d;
    --color-gray-medium: #404040;
    --color-gray-dark: #a0a0a0;
    --color-gray-text: #e0e0e0;
  }
  
  .header {
    background: var(--color-white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
  }
  
  .service-card,
  .testimonial-card {
    background: var(--color-white);
    border-color: var(--color-gray-medium);
  }
  
  .expertise {
    background: var(--color-gray-light);
  }
}

/* Landscape Orientation */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    min-height: 100vh;
  }
  
  .hero-content {
    padding: var(--space-8) 0;
  }
}

/* Very Large Screens */
@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

/* Ultra Wide Screens */
@media (min-width: 2000px) {
  .container {
    max-width: 1600px;
  }
  
  .hero-title {
    font-size: 4rem;
  }
  
  .section-title {
    font-size: 3rem;
  }
}