/* ==========================================================================
   NORBELIA — Responsive Media Queries & Mobile Adaptation
   ========================================================================== */

/* --- Tablet & Medium Screens (1024px and below) --- */
@media (max-width: 1024px) {
  .nav-menu {
    gap: 1.25rem;
  }

  .nav-link {
    font-size: 0.8rem;
  }

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

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

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

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

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

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

  .footer-top {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }
}

/* --- Mobile Breakpoint (880px and below) --- */
@media (max-width: 880px) {
  :root {
    --header-height: 72px;
  }

  .menu-toggle {
    display: flex;
  }

  .header-actions .btn {
    display: none; /* In mobile header, CTA is accessible inside mobile drawer */
  }

  /* Mobile Slideout Navigation */
  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 85%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--color-evergreen-dark);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 6rem 2.5rem 3rem;
    gap: 1.5rem;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.4);
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
    z-index: 110;
    overflow-y: auto;
  }

  .nav-menu.is-active {
    transform: translateX(0);
  }

  .nav-menu .nav-link {
    font-size: 1.15rem;
    color: var(--color-ivory);
    font-family: var(--font-heading);
    letter-spacing: 0.08em;
    padding: 0.5rem 0;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  }

  .nav-menu .nav-link.active,
  .nav-menu .nav-link:hover {
    color: var(--color-champagne);
    padding-left: 0.5rem;
  }

  .nav-menu-mobile-cta {
    display: block;
    margin-top: 1.5rem;
    width: 100%;
  }

  .nav-menu-mobile-cta .btn {
    width: 100%;
  }

  .mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 108;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
  }

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

  /* Layout Adaptations */
  .split-intro {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .split-intro-badge {
    position: static;
    margin-top: -2rem;
    margin-left: 1.5rem;
  }

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

  .signature-card {
    height: 400px;
  }

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

  .form-group.col-full {
    grid-column: span 1;
  }

  .lightbox-prev { left: 10px; }
  .lightbox-next { right: 10px; }
}

/* --- Small Mobile Phones (580px and below) --- */
@media (max-width: 580px) {
  .services-editorial-grid,
  .principles-grid,
  .process-steps-grid,
  .portfolio-grid,
  .experience-grid,
  .journal-grid {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .footer-legal-links {
    flex-direction: column;
    gap: 0.5rem;
  }

  .portfolio-filter-bar {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .filter-btn {
    flex-shrink: 0;
  }
}

@media (min-width: 881px) and (max-width: 1180px) {
  .header-container { gap: 0.65rem; }
  .brand-logo { gap: 0.55rem; }
  .brand-monogram { width: 36px; height: 36px; }
  .brand-name { font-size: 1.1rem; letter-spacing: 0.15em; }
  .brand-caption { font-size: 0.48rem; }
  .nav-menu { gap: 0.55rem; }
  .nav-link { font-size: 0.62rem; letter-spacing: 0.045em; }
  .header-cta { padding: 0.72rem 0.75rem; font-size: 0.6rem; }
}

@media (max-width: 880px) {
  .header-container { min-height: var(--header-height); }
  .brand-monogram { width: 38px; height: 38px; }
  .brand-name { font-size: 1.18rem; }
  .brand-caption { font-size: 0.5rem; }
  .footer-invitation { align-items: flex-start; flex-direction: column; gap: 1.4rem; }
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 580px) {
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .footer-invitation h2 { max-width: 15ch; }
  .footer-bottom { align-items: flex-start; }
  .footer-domain { width: 100%; }
}

@media (max-width: 900px) {
  .legal-layout { grid-template-columns: 1fr; }
  .legal-index { position: static; }
  .legal-index nav { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 1rem; }
  .services-shortcuts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .occasion-story-layout { grid-template-columns: 1fr; gap: 1.8rem; }
  .occasion-story-copy { max-width: 38rem; }
  .page-contact .split-intro-content { position: static; }
}

@media (max-width: 640px) {
  .legal-hero-grid { grid-template-columns: 1fr; }
  .legal-hero-image { height: 17rem; }
  .legal-document-copy { padding: 1.35rem; }
  .legal-index nav { grid-template-columns: 1fr; }
  .page-contact .contact-page-layout,
  .faq-page-layout,
  .journal-feature { grid-template-columns: 1fr; }
  .faq-page-aside { position: static; }
  .faq-page-aside figure { height: 13rem; }
  .journal-feature figure { min-height: 16rem; }
  .process-index { top: 4.7rem; }
  .process-index-label { display: none; }
  .process-index a { min-width: 4.6rem; }
  .process-card { margin-left: 1.5rem; padding: 1.35rem; }
  .process-card::before { left: -1.6rem; }
  .process-card-number { left: -2.5rem; top: 1.5rem; width: 1.5rem; height: 1.5rem; }
  .services-index-heading { align-items: flex-start; flex-direction: column; }
  .services-shortcuts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .occasion-story-images { grid-template-columns: repeat(3, minmax(8rem, 1fr)); overflow-x: auto; padding-bottom: 0.4rem; }
  .occasion-story-images figure, .occasion-story-images figure:nth-child(2) { height: 12rem; }
}

@media (max-width: 880px) {
  .investment-heading { grid-template-columns: 1fr; gap: 0.8rem; }
  .investment-heading h2 { max-width: 20ch; }
  .investment-grid { grid-template-columns: 1fr; }
  .investment-card-featured { transform: none; }
  .investment-card h3 { min-height: 0; }
  .portfolio-investment .investment-card { min-height: 0; }
}

@media (max-width: 580px) {
  .investment-note a { display: inline-block; margin: 0.45rem 0 0; }
}