/* ============================================================
   RESPONSIVE.CSS — Media Queries and Mobile Layouts
   ZaidAsim.com Premium Portfolio
   ============================================================ */

/* ── Tablet Breakpoint (< 1024px) ────────────────────────── */
@media (max-width: 1023px) {
  :root {
    --space-section: clamp(3.5rem, 8vh, 6rem);
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .socials-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .about-visual {
    height: 300px;
  }
}

/* Hide mobile menu elements by default on desktop */
.mobile-menu-overlay {
  display: none !important;
}
.hamburger {
  display: none !important;
}

/* ── Mobile Breakpoint (< 768px) ────────────────────────── */
@media (max-width: 767px) {
  :root {
    --space-section: 4rem;
  }

  /* Desktop Nav Links Hidden */
  .nav-links {
    display: none !important;
  }

  /* Mobile Hamburger Show */
  .hamburger {
    display: flex !important;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1000;
    padding: 0;
  }

  .hamburger span {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all 0.3s var(--ease-smooth);
  }

  /* Open state hamburger transformation */
  .menu-open .hamburger span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .menu-open .hamburger span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }

  .menu-open .hamburger span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  /* Mobile menu overlay styling */
  .mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: var(--color-bg-overlay);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    z-index: 999;
    display: flex !important; /* Override desktop hidden */
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .menu-open .mobile-menu-overlay {
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
  }


  .mobile-nav-link {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.2s, transform 0.2s;
  }

  .mobile-nav-link:hover {
    color: var(--color-text-primary);
    transform: scale(1.05);
  }

  .mobile-menu-socials {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-4);
  }

  .mobile-menu-socials a {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
  }

  /* Hero Section Mobile Adaptations */
  .hero-name {
    font-size: 2.75rem;
  }

  .hero-shape {
    display: none !important; /* Hide shapes on mobile for cleaner aesthetic */
  }

  /* About Section Mobile */
  .about-stats {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  /* Projects Mobile */
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  /* Timeline/Biography Mobile */
  .biography-timeline {
    padding-left: var(--space-6);
  }

  .biography-timeline::before {
    left: 10px;
  }

  .bio-chapter-marker {
    left: -20px;
  }

  .bio-chapter-dot {
    width: 10px;
    height: 10px;
    border-width: 2px;
  }

  .bio-chapter-content {
    padding: var(--space-5) var(--space-6);
  }

  .bio-chapter-title {
    font-size: var(--font-size-lg);
  }

  /* YouTube Card Mobile */
  .youtube-card-inner {
    grid-template-columns: 1fr;
  }

  .youtube-info {
    padding: var(--space-6);
  }

  .youtube-desc {
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-4);
  }

  /* Socials Grid Mobile */
  .socials-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  /* Contact Mobile */
  .contact-content {
    padding: var(--space-8) var(--space-4);
  }

  .contact-title {
    font-size: var(--font-size-2xl);
  }

  .contact-actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }

  .contact-btn {
    width: 100%;
    justify-content: center;
  }

  .contact-email-display code {
    font-size: var(--font-size-sm);
  }

  /* Footer Mobile */
  .footer-content {
    gap: var(--space-6);
  }
}

/* ── Small Mobile Breakpoint (< 480px) ───────────────────── */
@media (max-width: 479px) {
  .hero-name {
    font-size: 2.25rem;
  }

  .hero-tagline {
    font-size: var(--fs-small);
  }

  .hero-badge span {
    font-size: 10px;
  }
}