/* Responsive Design — shared across all pages */

/* Navbar always above sticky/scrolling content on all screen sizes */
.navbar {
  z-index: 200;
}

/* Tablet: ≤1024px */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .resume-section-grid {
    grid-template-columns: 1fr 2fr;
    gap: 1.5rem;
  }

  /* ── Projects page ── */
  .project-row {
    grid-template-columns: 1fr 2fr;
  }
}

/* Mobile: ≤768px */
@media (max-width: 768px) {

  /* ── Nav: fixed at top, centered, site gradient bg ── */
  .navbar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0;
    width: 100%;
    padding: 0.6rem 1rem 0.5rem;
    margin: 0;
    background: linear-gradient(90deg, #5DAC81, #FAF8F4, #E87A90);
    z-index: 200 !important;
    box-sizing: border-box;
  }

  .navbar ul {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0;
  }

  .navbar li {
    margin-bottom: 0;
    display: inline;
    margin-right: 0;
  }

  /* ── Home page ── */
  body {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding-top: 2.5rem;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  /* photo: centered in remaining space */
  .me-photo {
    position: static;
    transform: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    flex: 1;
  }

  .me-photo img {
    height: auto;
    max-height: 70vh;
    width: auto;
    max-width: 95%;
  }

  /* hide the name text header — it's already on the photo */
  header {
    display: none;
  }

  /* contact: below photo, centered */
  .contact {
    position: static;
    padding: 1rem 1rem 2rem;
    justify-content: center;
    width: 100%;
  }

  .contact ul {
    align-items: center;
  }

  /* ── About page ── */
  .about-container {
    padding: 5.5rem 1.5rem 3rem 1.5rem;
  }

  /* Chinese vertical text: reflow horizontally on mobile */
  .lang-zh {
    position: static !important;
    writing-mode: horizontal-tb !important;
    height: auto;
    flex-direction: column;
    margin-top: 2rem;
    padding: 0;
  }

  .lang-zh p,
  .lang-zh .about-greeting,
  .lang-zh .about-sign {
    writing-mode: horizontal-tb;
  }

  /* ── CV page ── */
  .resume-container {
    padding: 5.5rem 1.5rem 3rem 1.5rem;
  }

  .resume-section-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    margin: 1.5rem 0;
  }

  .section-title h2 {
    font-size: 1.5rem;
    margin-right: 0;
    margin-bottom: 0.5rem;
  }

  /* ── Gallery ── */
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  /* skill category labels: switch to pink for contrast on mobile */
  .skill-category {
    color: #E87A90;
  }

  /* ── Projects page ── */
  .projects-container {
    padding: 5.5rem 1.5rem 3rem 1.5rem;
    overflow-x: hidden;
  }
  .project-toc { display: none; }

  .project-meta {
    word-break: break-word;
    overflow-wrap: break-word;
  }

  .project-row {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .project-name {
    position: static;
    padding-right: 0;
  }

  .project-name h2 {
    font-size: 1.45rem;
  }

  .project-footer {
    flex-direction: column;
    gap: 1rem;
  }

  .storymap-embed {
    height: 70vh;
  }
}

/* Small mobile: ≤480px */
@media (max-width: 480px) {

  /* ── Nav: tighter link padding + smaller text ── */
  .navbar a {
    font-size: 0.82rem;
    padding: 0.4rem 0.55rem;
  }

  /* ── Home page ── */
  .me-photo img {
    max-height: 58vh;
  }

  .contact ul {
    gap: 0.45rem;
    padding: 0.6rem 0.8rem;
  }

  .contact li {
    font-size: 0.85rem;
  }

  /* ── About page ── */
  .about-container {
    padding: 5rem 1rem 2.5rem 1rem;
  }

  .lang-en .about-greeting {
    font-size: 1.35rem;
  }

  .lang-en p {
    font-size: 1.05rem;
  }

  /* ── CV page ── */
  .resume-container {
    padding: 5rem 1rem 2.5rem 1rem;
  }

  .resume-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .resume-name {
    font-size: 1.6rem;
  }

  .section-title h2 {
    font-size: 1.3rem;
  }

  .skill-row {
    flex-direction: column;
    gap: 0.2rem;
  }

  .skill-category {
    min-width: unset;
  }

  /* ── Projects page ── */
  .projects-container {
    padding: 5rem 1rem 2.5rem 1rem;
  }

  .projects-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .projects-title {
    font-size: 1.6rem;
  }

  .project-name h2 {
    font-size: 1.25rem;
  }

  /* side-by-side comparison → stacked */
  .project-comparison {
    grid-template-columns: 1fr;
  }

  .project-row {
    padding-top: 1.8rem;
    gap: 0.6rem;
  }

  /* ── Gallery ── */
  .gallery-grid {
    gap: 0.5rem;
  }
}