/**
 * [Variables] | [Constants] | [Dependencies] | [Integration Points]
 * - Variables: Media query breakpoints (1600px, 1280px, 1024px, 768px, 480px)
 * - Constants: Header heights, mobile drawer transforms
 * - Dependencies: tokens.css, base.css, sections.css
 * - Integration Points: Cross-browser responsive adaptation for mobile, tablet, laptop, and ultra-wide screens
 */

/* ==========================================================================
   1. Ultra-Wide Screens (4K / 2K Displays >= 1600px)
   ========================================================================== */
@media (min-width: 1600px) {
  :root {
    --max-width: 1440px;
  }

  .hero-title {
    font-size: 3.8rem;
  }

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

/* ==========================================================================
   2. Laptop / Small Desktop (1025px - 1280px)
   ========================================================================== */
@media (max-width: 1280px) and (min-width: 1025px) {
  .nav-links {
    gap: 16px;
  }

  .nav-link {
    font-size: 0.85rem;
    padding: 4px 0;
  }

  .brand-logo-wrap {
    margin-right: 18px;
  }

  .brand-name {
    font-size: 1.25rem;
  }

  .nav-actions {
    gap: 8px;
  }
}

/* ==========================================================================
   3. Tablet Landscape & Small Devices (<= 1024px)
   ========================================================================== */
@media (max-width: 1024px) {
  :root {
    --header-height: 66px;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-surface-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    align-items: flex-start;
    transform: translateY(-160%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-lg);
    z-index: 499;
  }

  .nav-links.mobile-open {
    transform: translateY(0);
  }

  .nav-link {
    font-size: 1rem;
    padding: 8px 0;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

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

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

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

  .dev-hub-grid {
    grid-template-columns: 1fr;
  }

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

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

  .projects-filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-input-wrap {
    min-width: 100%;
  }
}

/* ==========================================================================
   4. Tablet Portrait & Mobile Landscape (<= 768px)
   ========================================================================== */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .arch-node-grid {
    grid-template-columns: 1fr;
  }

  .workflow-progress-track {
    grid-template-columns: 1fr;
  }

  .workflow-stage-detail {
    grid-template-columns: 1fr;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
  }

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

  .stat-value {
    font-size: 1.6rem;
  }
}

/* ==========================================================================
   5. Smartphone Devices (<= 480px)
   ========================================================================== */
@media (max-width: 480px) {
  .hero-title {
    font-size: clamp(1.8rem, 7vw, 2.3rem);
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .hero-stats-row {
    grid-template-columns: 1fr;
  }

  .about-pillars {
    grid-template-columns: 1fr;
  }

  .modal-dialog {
    padding: 20px 16px;
    max-height: 90vh;
  }

  .brand-name {
    font-size: 1.15rem;
  }

  .brand-badge {
    display: none;
  }

  .nav-github-btn span {
    display: none;
  }

  .nav-github-btn {
    padding: 8px 10px;
  }
}

/* ==========================================================================
   6. Accessibility: 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;
  }
}