/* Responsive Design - Mobile First Approach */

/* Large Desktop: 1441px+ */
@media (min-width: 1441px) {
  .container {
    max-width: 1400px;
  }
  
  .hero-title {
    font-size: 4.5rem;
  }
  
  .section-title {
    font-size: 3.5rem;
  }
}

/* Desktop: 1025px - 1440px */
@media (max-width: 1440px) {
  .container {
    max-width: 1200px;
  }
}

/* Tablet: 769px - 1024px */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  /* Navigation */
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--primary-bg);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    transition: var(--transition-normal);
    padding-top: var(--spacing-xl);
    z-index: 999;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
  }
  
  .nav-link {
    font-size: var(--fs-lg);
    padding: var(--spacing-sm) var(--spacing-lg);
  }
  
  .nav-toggle {
    display: flex;
  }
  
  /* Hero Section */
  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
  }
  
  .hero-image {
    order: -1;
  }
  
  .image-container {
    width: 280px;
    height: 280px;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  /* About Section */
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  /* Projects Grid */
  .projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  /* Blog Grid */
  .blog-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
  
  /* Contact Info */
  .contact-info {
    grid-template-columns: 1fr;
  }
  
  .contact-item {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
  
  /* Social Links */
  .social-links {
    flex-direction: column;
    align-items: center;
  }
  
  /* Footer */
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

/* Mobile: 320px - 768px */
@media (max-width: 768px) {
  :root {
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
  }

  /* Card-style vertical snapping between sections */
  html {
    scroll-snap-type: y proximity;
  }

  main > section {
    scroll-snap-align: start;
    scroll-margin-top: 60px;
    scroll-snap-stop: always;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }
  
  /* Navigation */
  .nav-container {
    padding: 0 var(--spacing-sm);
    height: 60px;
  }

  .blog-section {
    padding-top: calc(60px + var(--spacing-xl));
  }
  
  .nav-menu {
    top: 60px;
    height: calc(100vh - 60px);
  }
  
  .nav-logo-link {
    font-size: var(--fs-lg);
  }
  
  /* Hero Section */
  .hero {
    min-height: 100vh;
    padding-top: 60px;
  }
  
  .hero-container {
    padding: 0 var(--spacing-sm);
  }
  
  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
    margin-bottom: var(--spacing-sm);
  }
  
  .hero-subtitle {
    font-size: var(--fs-lg);
  }
  
  .hero-description {
    font-size: var(--fs-base);
    margin-bottom: var(--spacing-lg);
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
  }
  
  .stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
  }
  
  .stat-number {
    font-size: var(--fs-2xl);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .image-container {
    width: 220px;
    height: 220px;
  }
  
  /* Sections */
  section {
    padding: var(--spacing-xl) 0;
  }
  
  .section-header {
    margin-bottom: var(--spacing-lg);
  }
  
  .section-title {
    font-size: var(--fs-2xl);
  }
  
  .section-subtitle {
    font-size: var(--fs-base);
  }
  
  /* About Section */
  .about-description {
    font-size: var(--fs-base);
  }
  
  .about-highlights {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .highlight-item h3 {
    font-size: var(--fs-base);
  }
  
  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-xs);
  }
  
  .skill-item {
    padding: var(--spacing-xs);
  }
  
  .skill-icon {
    font-size: var(--fs-lg);
  }
  
  .skill-name {
    font-size: var(--fs-xs);
  }
  
  /* Projects */
  .projects-grid {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
  }

  .projects-grid::-webkit-scrollbar {
    display: none;
  }

  .project-card {
    flex: 0 0 82vw;
    max-width: 82vw;
    margin: 0;
    scroll-snap-align: start;
  }

  .project-icon {
    height: 130px;
  }

  .project-content {
    padding: var(--spacing-md);
  }

  .project-title {
    font-size: var(--fs-lg);
  }

  .project-tech {
    gap: 4px;
  }

  .tech-tag {
    padding: 2px 6px;
  }

  .project-links {
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  /* Blog */
  .blog-grid {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
  }

  .blog-grid::-webkit-scrollbar {
    display: none;
  }

  .blog-card {
    flex: 0 0 82vw;
    max-width: 82vw;
    margin: 0;
    scroll-snap-align: start;
  }

  .blog-image {
    height: 110px;
  }

  .blog-content {
    padding: var(--spacing-md);
  }
  
  .blog-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }
  
  .blog-title {
    font-size: var(--fs-base);
  }
  
  /* Contact */
  .contact-item {
    padding: var(--spacing-md);
    flex-direction: row;
    text-align: left;
  }

  .contact-icon {
    width: 40px;
    height: 40px;
    font-size: var(--fs-lg);
  }

  .social-links {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }

  .social-link {
    width: auto;
    max-width: none;
  }
  
  /* Footer */
  .footer {
    padding: var(--spacing-md) 0;
  }
  
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* Small Mobile: 320px - 480px */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-xs);
  }
  
  .nav-container {
    padding: 0 var(--spacing-xs);
  }
  
  .hero-container {
    padding: 0 var(--spacing-xs);
  }
  
  .hero-title {
    font-size: clamp(1.75rem, 10vw, 2.5rem);
  }
  
  .hero-stats {
    gap: var(--spacing-sm);
  }
  
  .stat-number {
    font-size: var(--fs-xl);
  }
  
  .image-container {
    width: 180px;
    height: 180px;
  }
  
  .section-title {
    font-size: var(--fs-xl);
  }
  
  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  }
  
  .project-card,
  .blog-card {
    max-width: 100%;
  }
  
  .contact-item {
    padding: var(--spacing-sm);
  }
  
  .social-link {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: var(--spacing-2xl) 0;
  }
  
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .hero-image {
    order: 1;
  }
  
  .image-container {
    width: 200px;
    height: 200px;
  }
  
  .scroll-indicator {
    display: none;
  }
}

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

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .typewriter {
    animation: none;
    border-right: none;
  }
  
  .scroll-indicator {
    animation: none;
  }
  
  .particles {
    display: none;
  }
}

/* Print Styles */
@media print {
  * {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
  }
  
  .navbar,
  .nav-toggle,
  .theme-toggle,
  .scroll-indicator,
  .particles,
  .hero-buttons,
  .btn {
    display: none !important;
  }
  
  .hero {
    min-height: auto;
    page-break-after: always;
  }
  
  .section-title::after {
    display: none;
  }
  
  a {
    text-decoration: underline;
  }
  
  a[href^="http"]:after {
    content: " (" attr(href) ")";
  }
}

/* Focus Styles for Accessibility */
@media (prefers-reduced-motion: no-preference) {
  .nav-link:focus,
  .btn:focus,
  .social-link:focus,
  .project-link:focus {
    outline: 2px solid var(--text-accent);
    outline-offset: 2px;
  }
}

/* Dark Mode Specific Responsive Adjustments */
@media (max-width: 768px) {
  [data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.95);
  }
  
  [data-theme="light"] .nav-menu {
    background: var(--primary-bg);
    border-top: 1px solid var(--accent-bg);
  }
}

/* Hover Effects - Only on devices that support hover */
@media (hover: hover) and (pointer: fine) {
  .skill-item:hover,
  .project-card:hover,
  .blog-card:hover,
  .contact-item:hover {
    transform: translateY(-2px);
  }
  
  .btn-primary:hover {
    transform: translateY(-2px);
  }
  
  .social-link:hover {
    transform: translateY(-2px);
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn {
    min-height: 44px;
    min-width: 44px;
  }
  
  .nav-link {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  
  .social-link {
    min-height: 44px;
  }
  
  .project-link {
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

/* Hero refinements - mobile */
@media (max-width: 768px) {
  .scroll-indicator {
    display: none;
  }

  .hero-eyebrow {
    font-size: var(--fs-xs);
    margin-bottom: var(--spacing-sm);
  }

  .hero-chips {
    justify-content: center;
    gap: 6px;
    margin-bottom: var(--spacing-md);
  }

  .hero-socials {
    justify-content: center;
    margin-top: var(--spacing-md);
  }

  /* Skills */
  .skills-list {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .skill-group {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }

  .skills-carousel .skill-group {
    flex-basis: 90vw;
  }

  /* Timeline */
  .timeline {
    padding-left: var(--spacing-lg);
  }

  .experience-carousel .carousel-viewport.timeline {
    padding-left: 0;
  }

  .timeline-marker {
    left: calc(-1 * var(--spacing-lg));
  }

  .experience-carousel .timeline-marker {
    left: 0;
  }

  .experience-carousel .timeline-item {
    flex-basis: 85vw;
  }

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

  .timeline-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }

  /* GitHub stats stack on mobile */
  .stats-grid {
    grid-template-columns: 1fr;
  }

  /* Hide carousel arrows on touch (native swipe instead) */
  .carousel-btn {
    display: none;
  }

  /* Projects & blog carousels show arrows on mobile */
  .projects-carousel .carousel-btn,
  .blog-carousel .carousel-btn {
    display: flex;
  }

  .projects-carousel .carousel-prev,
  .blog-carousel .carousel-prev {
    left: 4px;
  }

  .projects-carousel .carousel-next,
  .blog-carousel .carousel-next {
    right: 4px;
  }
}

/* Contribution calendar: hide weekday labels, scroll horizontally */
@media (max-width: 640px) {
  .cal-weekday {
    display: none;
  }

  .cal-grid {
    grid-template-columns: 0 repeat(var(--cols), 1fr);
    min-width: 740px;
    width: max-content;
  }
}

@media (max-width: 480px) {
  .timeline {
    padding-left: var(--spacing-md);
  }

  .experience-carousel .carousel-viewport.timeline {
    padding-left: 0;
  }

  .timeline-marker {
    left: calc(-1 * var(--spacing-md));
  }

  .experience-carousel .timeline-marker {
    left: 0;
  }
}