/* Responsive Styles */

/* Large Desktop (1280px and up) */
@media (min-width: 1280px) {
  .container {
    padding: 0 var(--space-5);
  }
  
  .hero-content h1 {
    font-size: calc(var(--font-size-5xl) * 1.2);
  }
}

/* Desktop (1024px - 1279px) */
@media (max-width: 1279px) {
  .section-padding {
    padding: calc(var(--section-padding-y) * 0.9) 0;
  }
  
  .hero {
    padding-top: 120px;
  }
  
  .hero-content h1 {
    font-size: calc(var(--font-size-5xl) * 0.9);
  }
  
  .project-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) {
  :root {
    --section-padding-y: var(--space-8);
  }
  
  .container {
    padding: 0 var(--space-4);
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero .container {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-content {
    order: 1;
  }
  
  .hero-image {
    order: 0;
    margin-bottom: var(--space-5);
  }
  
  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .about-content {
    flex-direction: column;
    gap: var(--space-6);
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .contact-info-container {
    order: 1;
  }
  
  .contact-form-container {
    order: 0;
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--space-6);
  }
  
  .footer-links {
    width: 100%;
    justify-content: space-between;
  }
}

/* Small Tablet (640px - 767px) */
@media (max-width: 767px) {
  :root {
    --section-padding-y: var(--space-7);
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }
  
  .header .container {
    height: 60px;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: var(--color-bg-primary);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px var(--space-4) var(--space-4);
    transition: right var(--transition-normal);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-index-dropdown);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .nav-link {
    width: 100%;
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-border);
  }
  
  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-3);
    width: 100%;
    text-align: center;
  }
  
  .project-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
  
  .skills-list {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    flex-wrap: wrap;
    gap: var(--space-5);
  }
  
  .footer-links-column {
    width: calc(50% - var(--space-2));
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}

/* Mobile (320px - 639px) */
@media (max-width: 639px) {
  :root {
    --section-padding-y: var(--space-6);
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
  }
  
  .section-header {
    margin-bottom: var(--space-5);
  }
  
  .hero {
    padding-top: 100px;
    text-align: center;
  }
  
  .hero-content h1 {
    font-size: var(--font-size-4xl);
  }
  
  .hero-content h2 {
    font-size: var(--font-size-xl);
  }
  
  .hero-content p {
    font-size: var(--font-size-md);
  }
  
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  .project-filters {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .project-filter {
    font-size: var(--font-size-sm);
    padding: var(--space-1) var(--space-2);
  }
  
  .project-grid {
    grid-template-columns: 1fr;
  }
  
  .about-info {
    grid-template-columns: 1fr;
  }
  
  .about-cta {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .social-links {
    margin-top: var(--space-3);
  }
  
  .contact-form-container {
    padding: var(--space-4);
  }
  
  .theme-toggle-wrapper,
  .back-to-top {
    bottom: var(--space-3);
    right: var(--space-3);
  }
  
  .back-to-top {
    left: var(--space-3);
  }
}

/* Very Small Mobile (320px - 479px) */
@media (max-width: 479px) {
  .skills-categories {
    flex-direction: column;
    align-items: stretch;
  }
  
  .skill-category {
    text-align: center;
  }
  
  .footer-links-column {
    width: 100%;
  }
}