/* Mobile responsive — applies across all pages */

/* Mobile nav toggle button (hidden on desktop) */
.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: var(--paper);
  width: 40px;
  height: 40px;
  font-size: 22px;
  cursor: pointer;
  padding: 0;
}

@media (max-width: 900px) {
  .site-header-inner {
    padding: 14px 20px;
    gap: 16px;
  }
  .brand .crest { font-size: 18px; }
  .brand .est { display: none; }
  .lang-pill { display: none; }
  .nav-toggle { display: flex; align-items: center; justify-content: center; }
  /* Hide active-state border-bottom on the active link inside the closed bar
     (the underline reads as a stray line in the mobile layout) */
  .site-header > .site-header-inner > .nav > a.active { border-bottom-color: transparent; }

  .nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    /* Explicit height — Chromium can leave fixed elements at 0 height when
       relying on top+bottom alone inside a flex parent. dvh handles iOS bar. */
    height: calc(100vh - 64px);
    height: calc(100dvh - 64px);
    flex-direction: column;
    gap: 0;
    background: rgba(21, 26, 22, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 8px 0 40px;
    transform: translateY(-110%);
    transition: transform .28s cubic-bezier(.2, .7, .2, 1);
    z-index: 49;
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .nav.open { transform: translateY(0); }
  .nav a {
    padding: 18px 24px;
    border-bottom: 1px solid var(--line);
    font-size: 15px;
    letter-spacing: 0.18em;
    color: var(--paper);
    display: flex;
    align-items: center;
    min-height: 56px;
  }
  .nav a:last-child { border-bottom: 0; }
  .nav a.active {
    color: var(--bronze, #c9a87a);
    background: rgba(255, 255, 255, 0.02);
    border-left: 3px solid var(--bronze, #c9a87a);
    padding-left: 21px;
  }
  .nav a:active { background: rgba(255, 255, 255, 0.04); }

  /* Lock body scroll while the menu is open */
  body:has(.nav.open) { overflow: hidden; }

  /* Section head */
  .section-head {
    padding: 48px 20px 24px;
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .section-head h1 { font-size: clamp(40px, 11vw, 64px) !important; }
  .section-head .sub { font-size: 17px; }

  /* Footer */
  .site-footer { padding: 48px 20px 32px; margin-top: 80px; }
  .site-footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }
  .site-footer-inner > div:first-child { grid-column: 1 / -1; }
  .site-footer .colophon {
    flex-direction: column;
    gap: 8px;
    text-align: left;
  }

  /* HOMEPAGE ----- */
  .kd-hero { padding: 40px 20px 24px; }
  .kd-hero-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 24px;
  }
  .kd-hero-meta, .kd-hero-side { text-align: center; }
  .kd-hero-circle { width: 240px; height: 240px; }
  .kd-hero-year { font-size: 40px; }
  .kd-hero-title { font-size: clamp(36px, 10vw, 56px) !important; }
  .kd-hero-rule { margin: 32px 0 12px; }
  .kd-hero-foot { font-size: 9px; flex-wrap: wrap; gap: 8px; justify-content: center; }

  .kd-prologue { padding: 56px 20px; }
  .kd-prologue-lede { font-size: 20px !important; margin: 16px 0 32px; }
  .kd-prologue-cols {
    grid-template-columns: 1fr;
    gap: 24px;
    font-size: 15px;
  }

  .kd-facts-inner { grid-template-columns: 1fr 1fr; }
  .kd-fact { padding: 32px 16px; border-bottom: 1px solid var(--line); }
  .kd-fact:nth-child(2n) { border-right: 0; }
  .kd-fact:nth-last-child(-n+2) { border-bottom: 0; }
  .kd-fact-num { font-size: 36px; }
  .kd-fact-label { font-size: 10px; margin-top: 10px; }

  .kd-featured { padding: 56px 20px; }
  .kd-featured-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 32px;
  }
  .kd-featured-head h2 { font-size: 36px !important; }
  .kd-featured-body { grid-template-columns: 1fr; gap: 32px; }
  .kd-featured-lede { font-size: 18px; margin-bottom: 24px; }
  .kd-meta { grid-template-columns: 1fr; }

  .kd-sections { padding: 56px 20px; }
  .kd-sections-head h2 { font-size: 36px !important; }
  .kd-sections-grid { grid-template-columns: 1fr; gap: 40px; }
  .kd-section h3 { font-size: 26px; }

  .kd-voices { padding: 56px 20px; }
  .kd-voices-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 32px;
  }
  .kd-voices-head h2 { font-size: 36px !important; }
  .kd-voices-grid { grid-template-columns: 1fr; gap: 16px; }

  .kd-contrib { padding: 64px 20px; }
  .kd-contrib h2 { font-size: 32px !important; }
  .kd-contrib p { font-size: 16px; }

  /* TIMELINE ----- */
  .tl-controls-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 20px;
    gap: 16px;
  }
  .tl-scrubber-inner {
    overflow-x: auto;
    overflow-y: visible;
    padding: 60px 32px 50px;
    height: auto;
    min-height: 160px;
  }
  .tl-track { left: 32px; right: 32px; }
  .tl-pin-year { font-size: 9px; top: 14px; }
  .tl-feature { padding: 48px 20px; }
  .tl-feature-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .tl-feature-year { font-size: 56px; margin-top: 8px; }
  .tl-feature-body h2 { font-size: 32px !important; }
  .tl-feature-body p { font-size: 16px; }
  .tl-feature-img { aspect-ratio: 4/3; }
  .tl-list { padding: 48px 20px; }
  .tl-row {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 20px 0;
  }
  .tl-row-mark { display: none; }
  .tl-row-year { font-size: 22px; }
  .tl-row-body h3 { font-size: 20px; }
  .tl-row-body p { font-size: 14px; }
  .tl-row:hover, .tl-row.active { padding-left: 12px; padding-right: 12px; }

  /* ARCHIVE ----- */
  .ar-controls-inner {
    grid-template-columns: 1fr !important;
    padding: 20px;
    gap: 20px;
  }
  .ar-meta { flex-direction: row; justify-content: space-between; align-items: center; }
  .ar-gallery { padding: 32px 20px; }
  .ar-gallery.grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .ar-gallery.masonry { column-count: 2; column-gap: 16px; }
  .ar-tile-title { font-size: 15px; }

  .ar-modal { padding: 16px; }
  .ar-modal-inner {
    grid-template-columns: 1fr;
    gap: 20px;
    max-height: calc(100vh - 32px);
    overflow-y: auto;
  }
  .ar-modal-side h2 { font-size: 26px; }
  .ar-modal-close { top: 4px; right: 4px; padding: 8px; background: var(--ink); }

  /* ARTIFACTS ----- */
  .af-feature { padding: 48px 20px; }
  .af-feature-inner { grid-template-columns: 1fr; gap: 24px; }
  .af-feature-side h2 { font-size: 32px !important; }
  .af-feature-body { font-size: 18px; }
  .af-grid-section { padding: 48px 20px; }
  .af-grid { grid-template-columns: 1fr 1fr; gap: 28px 16px; }
  .af-card h3 { font-size: 18px; }

  /* PEOPLE ----- */
  .pe-feature { padding: 48px 20px; }
  .pe-feature-inner { grid-template-columns: 1fr; gap: 24px; }
  .pe-feature-body h2 { font-size: 36px !important; }
  .pe-quote { font-size: 22px; padding-left: 16px; }
  .pe-body { font-size: 16px; }
  .pe-player { flex-wrap: wrap; padding: 14px 16px; }
  .pe-grid-section { padding: 48px 20px; }
  .pe-grid { grid-template-columns: 1fr 1fr; gap: 28px 16px; }
  .pe-card h3 { font-size: 18px; }
  .pe-tree-section { padding: 48px 20px; }
  .pe-tree-row { gap: 12px; flex-wrap: wrap; }
  .pe-tree-node { min-width: 140px; padding: 12px 14px; }
  .pe-tree-node .serif { font-size: 16px; }

  /* MAP ----- */
  .mp-stage {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px 20px 64px;
  }
  .mp-canvas { aspect-ratio: 1/1; }
  .mp-pin { width: 32px; height: 32px; }
  .mp-side h2 { font-size: 28px; }
  .mp-side p { font-size: 15px; }
  .mp-list li { font-size: 14px; padding: 10px 0; }

  /* CONTRIBUTE ----- */
  .cb-stage { padding: 48px 20px 64px; }
  .cb-stage-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cb-form h2 { font-size: 30px !important; }
  .cb-fields-row { grid-template-columns: 1fr; gap: 20px; }
  .cb-actions { flex-direction: column-reverse; gap: 12px; align-items: stretch; }
  .cb-actions .btn { justify-content: center; }
  .cb-type-title { font-size: 18px; }
}

@media (max-width: 480px) {
  .ar-gallery.grid { grid-template-columns: 1fr; }
  .ar-gallery.masonry { column-count: 1; }
  .af-grid { grid-template-columns: 1fr; }
  .pe-grid { grid-template-columns: 1fr; }
  .kd-hero-circle { width: 200px; height: 200px; }
  .kd-hero-year { font-size: 32px; }
}