/* ==========================================================================
   Responsive Styles - Mobile-First Approach
   ========================================================================== */

/* Mobile First (default styles in main.css are for mobile) */

/* Small devices (landscape phones, 576px and up) */
@media (max-width: 575.98px) {
  :root {
    --container-padding: 1rem;
    --font-size-6xl: 2rem;
    --font-size-5xl: 1.75rem;
    --font-size-4xl: 1.5rem;
    --spacing-4xl: 3rem;
    --spacing-3xl: 2rem;
    --spacing-2xl: 1.5rem;
  }

  /* Navigation */
  .nav-menu {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--background-primary);
    border-top: 1px solid var(--border-color);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu-toggle {
    display: flex;
  }

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

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

  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  /* Hero Section */
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    text-align: center;
    min-height: 100vh;
    padding-top: var(--navbar-height);
  }

  .hero-title {
    font-size: var(--font-size-4xl);
    line-height: 1.2;
  }

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

  .hero-stats {
    justify-content: center;
    gap: var(--spacing-lg);
  }

  .hero-actions {
    justify-content: center;
    gap: var(--spacing-md);
  }

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

  .hero-image-container {
    width: 200px;
    height: 200px;
  }

  .tech-badges {
    max-width: 300px;
  }

  /* About Section */
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .timeline-item {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .timeline-date {
    width: auto;
    font-size: var(--font-size-xs);
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .skill-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .skill-bar {
    width: 100%;
  }

  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

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

  /* Projects */
  .project-filters {
    gap: var(--spacing-sm);
  }

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

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

  /* Contact */
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .contact-item {
    gap: var(--spacing-md);
  }

  .contact-form {
    padding: var(--spacing-lg);
  }

  /* Footer */
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }

  .social-links {
    justify-content: center;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 576px) and (max-width: 991.98px) {
  :root {
    --font-size-6xl: 2.5rem;
    --font-size-5xl: 2rem;
  }

  /* Navigation */
  .nav-menu {
    gap: var(--spacing-lg);
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--background-primary);
    border-top: 1px solid var(--border-color);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  /* Hero Section */
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-3xl);
  }

  .hero-title {
    font-size: var(--font-size-5xl);
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-image-container {
    width: 250px;
    height: 250px;
  }

  /* About Section */
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
  }

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

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

  /* Services */
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Projects */
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Contact */
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
  }

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

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .mobile-menu-toggle {
    display: none;
  }

  .nav-menu {
    position: static;
    background: transparent;
    border: none;
    flex-direction: row;
    padding: 0;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
  }

  /* Hero adjustments for large screens */
  .hero-content {
    grid-template-columns: 1fr 1fr;
    text-align: left;
  }

  .hero-stats {
    justify-content: flex-start;
  }

  .hero-actions {
    justify-content: flex-start;
  }

  /* About Section */
  .about-content {
    grid-template-columns: 2fr 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  /* Services */
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Projects */
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Contact */
  .contact-content {
    grid-template-columns: 1fr 1fr;
  }

  /* Footer */
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  :root {
    --container-max-width: 1400px;
  }

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

  .hero-image-container {
    width: 350px;
    height: 350px;
  }
}

/* Ultra wide screens (1400px and up) */
@media (min-width: 1400px) {
  :root {
    --container-max-width: 1600px;
    --font-size-6xl: 4rem;
    --font-size-5xl: 3.5rem;
  }

  .hero-content {
    gap: var(--spacing-4xl);
  }

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

/* Print styles */
@media print {
  .navbar,
  .hero-actions,
  .contact-form,
  .scroll-indicator {
    display: none !important;
  }

  .hero {
    min-height: auto;
    padding: var(--spacing-xl) 0;
  }

  .section {
    padding: var(--spacing-xl) 0;
    break-inside: avoid;
  }

  .service-card,
  .timeline-item,
  .skill-category {
    break-inside: avoid;
  }

  body {
    background: white !important;
    color: black !important;
  }

  .hero-title,
  .section-title {
    color: black !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  :root {
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
    --border-color: #000000;
  }

  [data-theme="dark"] {
    --border-color: #ffffff;
  }
}

/* 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-indicator {
    animation: none;
  }
}

/* Touch device optimizations */
@media (pointer: coarse) {
  .btn {
    min-height: 44px;
    min-width: 44px;
  }

  .nav-link {
    padding: var(--spacing-sm) 0;
  }

  .filter-btn {
    min-height: 44px;
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .theme-toggle {
    width: 44px;
    height: 44px;
  }

  .social-links a {
    width: 44px;
    height: 44px;
  }
}

/* Landscape orientation adjustments for mobile */
@media (max-width: 991.98px) and (orientation: landscape) {
  .hero {
    min-height: 100vh;
    padding: var(--navbar-height) 0 var(--spacing-xl) 0;
  }

  .hero-content {
    min-height: auto;
    padding-top: var(--spacing-xl);
  }

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

  .hero-image-container {
    width: 150px;
    height: 150px;
  }
}

/* Hover effects for non-touch devices */
@media (hover: hover) {
  .service-card:hover {
    transform: translateY(-8px);
  }

  .btn:hover {
    transform: translateY(-3px);
  }

  .social-links a:hover {
    transform: translateY(-3px);
  }
}

/* Dark mode specific responsive adjustments */
[data-theme="dark"] {
  @media (max-width: 575.98px) {
    .nav-menu {
      background: var(--background-secondary);
      border-top: 1px solid var(--border-color);
    }
  }
}

/* Safari specific fixes */
@supports (-webkit-appearance: none) {
  .hero {
    min-height: -webkit-fill-available;
  }
}

/* Firefox specific fixes */
@-moz-document url-prefix() {
  .skill-progress {
    background: var(--primary-color);
  }
}