/* ═══════════════════════════════════════════════════
   RESPONSIVE — Zane Davis Portfolio
   Breakpoints: 768px, 560px, 380px
   ═══════════════════════════════════════════════════ */

/* ─── NARROW DESKTOP (≤ 960px) ──────────────────── */
@media (max-width: 960px) {
  :root { --page-px: 80px; }
}

/* ─── TABLET (≤ 768px) ──────────────────────────── */
@media (max-width: 768px) {
  :root { --page-px: 40px; }

  .page-header-title { font-size: 36px; }

  /* Reduce section vertical padding */
  .section, .cta-section {
    padding-top: 40px;
    padding-bottom: 44px;
  }

  .page-header {
    padding-top: 44px;
    padding-bottom: 36px;
  }

  /* CTA headline scales down */
  .cta-headline { font-size: 30px; }

  /* Credentials grid stacks earlier on tablets */
  .credentials-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  /* Expertise grid → 2 columns on tablet */
  .expertise-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px 32px;
  }

  /* Image grids scale */
  .identity-anchor-grid img { height: 200px; }
  .credentials-img-cluster img { height: 160px; }
}

/* ─── MOBILE (≤ 560px) ──────────────────────────── */
@media (max-width: 560px) {
  :root { --px: 20px; --page-px: 20px; }

  /* Nav */
  .nav-links { gap: 14px; }
  .nav-links li:nth-child(4) { display: none; }

  /* Section spacing tightens */
  .section, .cta-section {
    padding-top: 32px;
    padding-bottom: 36px;
  }

  .page-header {
    padding-top: 36px;
    padding-bottom: 28px;
  }

  .section-label { margin-bottom: 24px; }

  /* Components → single column */
  .expertise-grid {
    grid-template-columns: 1fr;
    gap: 24px 0;
  }

  .brief-row {
    grid-template-columns: 1fr;
    gap: 12px 0;
  }

  .credentials-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cta-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    align-items: start;
  }

  /* CTA section adjustments */
  .cta-headline { font-size: 26px; }
  .cta-right {
    align-items: flex-start;
    text-align: left;
    padding-top: 0;
  }

  /* Footer */
  .footer-notice { display: none; }

  /* Page header */
  .page-header-title { font-size: 28px; }
  .page-header-label { margin-bottom: 14px; }

  /* Image grids → single column */
  .identity-anchor-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .identity-anchor-grid img { height: 180px; }

  .credentials-img-cluster {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .credentials-img-cluster img { height: 160px; }

  /* Timeline items stack on very narrow */
  .timeline-item {
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
  }

  /* Simple list items stack */
  .simple-list-item {
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
  }

  /* Brief gallery → always visible on touch (no hover) */
  .brief-gallery {
    max-height: none;
    opacity: 1;
    overflow-x: auto;
  }
  .brief-img {
    height: 140px;
  }
}

/* ─── SMALL MOBILE (≤ 380px) ────────────────────── */
@media (max-width: 380px) {
  /* hero h1 handled in home.css */
  .cta-headline { font-size: 22px; }

  .section, .cta-section {
    padding-top: 28px;
    padding-bottom: 32px;
  }

  /* Brief images smaller */
  .brief-img { height: 120px; }
}