/* ============================================================
   BRAIN Foundation — Responsive overrides
   Cascades onto existing inline styles by targeting the specific
   grid-template-columns values used across the site.
   Breakpoints: mobile (≤640), tablet (641–1023), desktop (1024+).
   ============================================================ */

/* ---------- Universal ---------- */
html, body { overflow-x: hidden; }
img, svg, video { max-width: 100%; height: auto; }

/* ---------- Tablet (≤1024px) ---------- */
@media (max-width: 1024px) {
  /* Collapse the signature "160px | content" rail on desktop into a single column. */
  section [style*="grid-template-columns: 160px 1fr"],
  section [style*="grid-template-columns:160px 1fr"] {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  section [style*="grid-template-columns: 160px 1fr 1fr auto"],
  section [style*="grid-template-columns:160px 1fr 1fr auto"] {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  section [style*="grid-template-columns: 160px 1fr auto"],
  section [style*="grid-template-columns:160px 1fr auto"] {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  /* Split-layouts collapse to stacked. */
  section [style*="grid-template-columns: 1fr 1fr"],
  section [style*="grid-template-columns:1fr 1fr"],
  section [style*="grid-template-columns: 1.1fr 1fr"],
  section [style*="grid-template-columns: 1.25fr 1fr"],
  section [style*="grid-template-columns: 1.5fr 1fr"] {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }
  /* 4-up & 3-up grids → 2-up. */
  section [style*="grid-template-columns: repeat(4,1fr)"],
  section [style*="grid-template-columns: repeat(4, 1fr)"],
  section [style*="grid-template-columns:repeat(4,1fr)"] {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  section [style*="grid-template-columns: repeat(3,1fr)"],
  section [style*="grid-template-columns: repeat(3, 1fr)"],
  section [style*="grid-template-columns:repeat(3,1fr)"] {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  section [style*="grid-template-columns: repeat(5,1fr)"],
  section [style*="grid-template-columns: repeat(5, 1fr)"] {
    grid-template-columns: repeat(3, 1fr) !important;
  }

  /* Tighten outer section padding. */
  section[style*="padding: 96px 40px"],
  section[style*="padding:96px 40px"] {
    padding: 64px 28px !important;
  }
  section[style*="padding: 72px 40px"],
  section[style*="padding:72px 40px"] {
    padding: 56px 28px !important;
  }

  /* Table-like rows — dates, press items, careers rows. */
  main > section [style*="grid-template-columns: 160px 120px 1fr 140px"],
  main > section [style*="grid-template-columns: 2fr 1fr 1fr 160px 140px"],
  main > section [style*="grid-template-columns: 140px 100px 1fr 140px"] {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
  }
  main > section [style*="grid-template-columns: 100px 1fr auto"] {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }
  main > section [style*="grid-template-columns: 80px 1fr auto"] {
    grid-template-columns: 60px 1fr auto !important;
    gap: 14px !important;
  }

  /* Header nav — make it smaller. */
  header a, header button { font-size: 12px !important; }
}

/* ---------- Mobile (≤640px) ---------- */
@media (max-width: 640px) {
  /* All grid patterns → single column on phones. */
  section [style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  /* Outer padding: generous top/bottom, minimal sides. */
  section[style*="padding"] {
    padding-left: 20px !important;
    padding-right: 20px !important;
  }
  section[style*="padding: 96px 40px"],
  section[style*="padding:96px 40px"] { padding-top: 56px !important; padding-bottom: 48px !important; }
  section[style*="padding: 72px 40px"],
  section[style*="padding:72px 40px"] { padding-top: 44px !important; padding-bottom: 40px !important; }
  section[style*="padding: 48px 40px"],
  section[style*="padding:48px 40px"] { padding-top: 36px !important; padding-bottom: 32px !important; }

  /* Containers shouldn't set sideways padding at the container level either. */
  [style*="padding: 56px 40px"] { padding: 40px 20px !important; }
  [style*="padding: 32px 40px"] { padding: 28px 20px !important; }
  [style*="padding: 64px 56px"] { padding: 40px 24px !important; }
  [style*="padding: 48px 48px"] { padding: 32px 22px !important; }
  [style*="padding: 40px 48px"] { padding: 28px 20px !important; }

  /* Display headlines scale down further. */
  h1 { font-size: clamp(44px, 11vw, 64px) !important; line-height: 1.0 !important; }
  h2 { font-size: clamp(30px, 7.5vw, 40px) !important; }
  h3 { font-size: clamp(22px, 5.5vw, 28px) !important; }

  /* Hero slider — reduce min-height, stack content properly. */
  main [style*="minHeight: 560px"],
  main [style*="min-height: 560px"] { min-height: 440px !important; }
  main [style*="minHeight: 560"]  { min-height: 440px !important; }

  /* Hero slider progress rail — stack tabs */
  main > section [style*="grid-template-columns: repeat(4, 1fr) auto"] {
    grid-template-columns: 1fr 1fr !important;
  }

  /* Quote blocks and big type shouldn't bleed. */
  blockquote, .t-display { font-size: clamp(36px, 9vw, 56px) !important; }

  /* Team tables — collapse to 1 row per person. */
  main > section [style*="grid-template-columns: 80px 1fr"] {
    grid-template-columns: 1fr !important;
  }

  /* Form rows collapse. */
  form [style*="grid-template-columns: 1fr 1fr"] { grid-template-columns: 1fr !important; }
}

/* ---------- Hero slider specific ---------- */
@media (max-width: 1024px) {
  .hero-slider-content {
    grid-template-columns: 1fr !important;
    min-height: 440px !important;
    padding: 40px 32px 28px !important;
    gap: 24px !important;
  }
  .hero-slider-content > div:first-child { justify-content: flex-start !important; gap: 28px !important; display: flex !important; flex-direction: column !important; }
  .hero-slider-content h1 { font-size: clamp(36px, 5vw, 56px) !important; }
}
@media (max-width: 640px) {
  .hero-slider-content {
    min-height: 380px !important;
    padding: 28px 22px 24px !important;
  }
  .hero-slider-content h1 { font-size: clamp(28px, 7.5vw, 40px) !important; line-height: 1.05 !important; }
  .hero-slider-content p { font-size: 15px !important; }
}

/* ---------- Footer-specific ---------- */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr !important; gap: 32px !important; }
  .footer-newsletter { grid-template-columns: 1fr !important; gap: 16px !important; }
  .footer-legal { flex-direction: column !important; gap: 14px !important; text-align: center; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr !important; }
}

/* ---------- Very small (≤380px) ---------- */
@media (max-width: 380px) {
  section[style*="padding"] { padding-left: 16px !important; padding-right: 16px !important; }
  h1 { font-size: 40px !important; }
  h2 { font-size: 28px !important; }
}