/* ============================================
   Personal Portfolio Website - Responsive Styles
   Media queries for mobile, tablet, and desktop
   ============================================ */

/* ============================================
   Mobile First Approach
   Base styles are mobile, then scale up
   ============================================ */

/* ============================================
   Mobile: < 768px (default/base styles)
   ============================================ */

/* Mobile navigation adjustments */
@media (max-width: 767px) {
  .container {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
  }
  
  section {
    min-height: auto;
    padding: var(--spacing-xl) 0;
  }
  
  /* Typography adjustments */
  h1, .hero-name {
    font-size: var(--font-size-3xl);
  }
  
  h2, .section-title {
    font-size: var(--font-size-2xl);
  }
  
  h3 {
    font-size: var(--font-size-xl);
  }
  
  /* Navigation */
  .nav-container {
    flex-direction: column;
    gap: 12px;
    padding: 12px 16px;
    height: auto;
  }
  
  .nav-menu {
    flex-direction: column;
    width: 100%;
    gap: 4px;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu a {
    display: block;
    padding: 12px;
    text-align: center;
  }
  
  /* Hero section */
  .hero-content {
    padding: var(--spacing-md);
  }
  
  .hero-greeting {
    font-size: var(--font-size-base);
  }
  
  .hero-title {
    font-size: var(--font-size-lg);
  }
  
  .hero-cta {
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  /* Grid layouts */
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  /* Project cards */
  .project-card {
    padding: var(--spacing-md);
  }
  
  .project-meta {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  /* Timeline */
  .timeline {
    padding-left: var(--spacing-md);
  }
  
  .timeline-item::before {
    left: calc(-1 * var(--spacing-md) - 6px);
  }
  
  /* Contact */
  .contact-item {
    flex-direction: column;
    text-align: center;
    min-width: auto;
    width: 100%;
  }
  
  /* Language toggle */
  .language-toggle {
    width: 100%;
    justify-content: center;
  }
  
  .lang-btn {
    flex: 1;
  }
  
  /* Spacing adjustments */
  .mt-xl, .mb-xl, .pt-xl, .pb-xl {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
  }
}

/* ============================================
   Tablet: 768px - 1024px
   ============================================ */

@media (min-width: 768px) and (max-width: 1024px) {
  .container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
  
  /* Typography */
  h1, .hero-name {
    font-size: var(--font-size-4xl);
  }
  
  h2, .section-title {
    font-size: var(--font-size-3xl);
  }
  
  /* Navigation */
  .nav-menu {
    gap: 4px;
  }
  
  /* Grid layouts */
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  .grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Hero section */
  .hero-cta {
    gap: var(--spacing-md);
  }
  
  /* Contact */
  .contact-item {
    min-width: 400px;
  }
}

/* ============================================
   Desktop: > 1024px
   ============================================ */

@media (min-width: 1025px) {
  /* Grid layouts */
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
  }
  
  .grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  /* Hero section */
  .hero-cta {
    gap: var(--spacing-lg);
  }
  
  /* Navigation hover effects */
  .nav-menu a {
    position: relative;
  }
  
  .nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
    transition: width var(--transition-fast);
  }
  
  .nav-menu a:hover::after {
    width: 100%;
  }
}

/* ============================================
   Large Desktop: > 1440px
   ============================================ */

@media (min-width: 1441px) {
  :root {
    --font-size-5xl: 3.5rem;
    --font-size-4xl: 2.5rem;
  }
  
  .container {
    max-width: 1400px;
  }
  
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
  }
}

/* ============================================
   Touch Device Optimizations
   ============================================ */

@media (hover: none) and (pointer: coarse) {
  /* Increase touch targets */
  .btn,
  .lang-btn,
  .nav-menu a {
    min-height: 48px;
    min-width: 48px;
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  /* Remove hover effects on touch devices */
  .interactive:hover {
    transform: none;
  }
  
  .project-card:hover {
    transform: none;
  }
  
  /* Simplify animations on touch devices */
  .reveal {
    transition-duration: 0.3s;
  }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  /* Hide navigation and interactive elements */
  #main-nav,
  .language-toggle,
  .hero-cta,
  footer {
    display: none;
  }
  
  /* Adjust layout for print */
  section {
    min-height: auto;
    page-break-inside: avoid;
  }
  
  .project-card,
  .skill-badge,
  .timeline-item {
    page-break-inside: avoid;
  }
  
  /* Remove backgrounds and shadows */
  body {
    background: white;
  }
  
  .project-card,
  .skill-badge,
  .contact-item {
    background: white;
    border: 1px solid #ccc;
    box-shadow: none;
  }
  
  /* Adjust colors for print */
  h1, h2, h3, h4, h5, h6,
  .hero-name,
  .section-title {
    color: #000;
  }
  
  p,
  .project-description,
  .timeline-description {
    color: #333;
  }
}

/* ============================================
   Landscape Orientation (Mobile)
   ============================================ */

@media (max-width: 767px) and (orientation: landscape) {
  section {
    min-height: auto;
  }
  
  #hero {
    min-height: 100vh;
  }
  
  .hero-content {
    padding: var(--spacing-lg) 0;
  }
}

/* ============================================
   High DPI / Retina Displays
   ============================================ */

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  /* Optimize for high DPI displays */
  body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
}