/* flags.fyi — complete styles, no framework */

/* ─── Reset & base ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #8f00ff;
  --primary-hover: #7a00db;
  --primary-light: #f3e5ff;
  --primary-muted: #e6ccff;
  --text: #363636;
  --text-light: #7a7a7a;
  --bg: #fff;
  --border: #e5e5e5;
  --radius: 4px;
  --sidebar-w: 340px;
  --navbar-h: 52px;
  --left-rail-w: 48px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Consolas", "Liberation Mono", Menlo, monospace;
}

html { font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); text-decoration: underline; }
h1 { font-size: 1.75rem; font-weight: 600; line-height: 1.2; }
h2 { font-size: 1.4rem; font-weight: 600; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin-bottom: 0.75rem; }
img { max-width: 100%; height: auto; }
code { font-family: var(--font-mono); font-size: 0.875em; }
pre { overflow-x: auto; padding: 0.75rem; background: #f5f5f5; border-radius: var(--radius); font-size: 0.8rem; }
pre code { background: none; padding: 0; }
blockquote { border-left: 3px solid var(--border); padding: 0.5rem 1rem; margin: 1rem 0; color: var(--text-light); background: #fafafa; }

/* ─── Lists ──────────────────────────────────────────────────────── */
ul, ol { padding-left: 1.5rem; margin: 0.5rem 0 0.75rem; }
ul { list-style: disc; }
ol { list-style: decimal; }
li { margin-bottom: 0.3rem; line-height: 1.5; }
li > ul, li > ol { margin-top: 0.25rem; margin-bottom: 0; }
nav ul, nav ol { list-style: none; padding-left: 0; margin: 0; }

/* ─── Tables ──────────────────────────────────────────────────────── */
table { width: 100%; border-collapse: collapse; margin-bottom: 0.5rem; }
th, td { padding: 0.5rem 0.65rem; text-align: left; border-bottom: 1px solid var(--border); }
th { font-weight: 600; font-size: 0.9rem; }
th a { color: var(--primary); }

/* ─── Container ───────────────────────────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }

/* ═══════════════════════════════════════════════════════════════════
   NAVBAR (all pages including flag pages)
   ═══════════════════════════════════════════════════════════════════ */
nav.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: linear-gradient(141deg, #5000cc, #8f00ff 71%, #c01aff);
  padding: 0 1.25rem;
  height: var(--navbar-h);
  display: flex; align-items: center; justify-content: space-between;
}
nav.site-nav ul { list-style: none; display: flex; gap: 1rem; align-items: center; }
nav.site-nav ul li { min-width: 120px; display: flex; align-items: center; }
nav.site-nav a { text-decoration: none; color: rgba(255,255,255,0.85); }
nav.site-nav a:hover { color: #fff; text-decoration: none; }
.site-logo {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-weight: 700; color: #fff; font-size: 1rem;
}
.site-logo:hover { color: #fff; text-decoration: none; }
.site-logo img { height: 28px; vertical-align: middle; }

/* Centered title in flag-page navbar */
.nav-title {
  font-size: 1rem; font-weight: 600; color: #fff;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  text-align: center; flex: 1; padding: 0 1rem;
}

/* ═══════════════════════════════════════════════════════════════════
   LEFT RAIL (thin sidebar with index icon)
   ═══════════════════════════════════════════════════════════════════ */
.left-rail {
  position: fixed; top: var(--navbar-h); left: 0; bottom: 0;
  width: var(--left-rail-w); z-index: 50;
  background: linear-gradient(180deg, rgba(143,0,255,0.06) 0%, rgba(80,0,204,0.03) 40%, rgba(255,255,255,1) 100%);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center;
  padding-top: 0.75rem;
}
.rail-btn {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: var(--radius);
  color: var(--text-light); text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.rail-btn:hover {
  background: var(--primary-light); color: var(--primary);
  text-decoration: none;
}

/* ═══════════════════════════════════════════════════════════════════
   HERO LANDING (index.html) — full viewport
   ═══════════════════════════════════════════════════════════════════ */
.hero-landing {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  text-align: center;
  background: linear-gradient(141deg, #5000cc, #8f00ff 71%, #c01aff);
  color: #fff;
}
.hero-landing h1 { color: #fff; margin: 0.75rem 0 0.25rem; font-size: 2.5rem; }
.hero-landing p { color: rgba(255,255,255,0.75); margin-bottom: 1.5rem; }
.hero-landing .logo-img { max-width: 256px; margin: 0 auto; }
.hero-landing a.btn {
  display: inline-block; padding: 0.65rem 1.5rem;
  background: rgba(255,255,255,0.9); color: var(--primary); border-radius: 2rem;
  font-weight: 600; text-decoration: none; font-size: 1rem;
}
.hero-landing a.btn:hover { background: #fff; text-decoration: none; }

/* ═══════════════════════════════════════════════════════════════════
   HERO BANNER (flag-index)
   ═══════════════════════════════════════════════════════════════════ */
.hero-banner { background: var(--primary); color: #fff; padding: 2rem 1.25rem; }
.hero-banner h1 { color: #fff; }

/* ═══════════════════════════════════════════════════════════════════
   SEARCH
   ═══════════════════════════════════════════════════════════════════ */
.search-box {
  max-width: 500px; margin: 1rem auto 0; position: relative; text-align: center;
}
.hero-banner .search-box { margin-top: 0.75rem; }
main > .search-box { margin: 1rem auto; }
.search-input {
  width: 100%; padding: 0.5rem 1rem; border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.3); background: rgba(255,255,255,0.15);
  color: #fff; font-size: 0.9rem; font-family: var(--font);
  outline: none; transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.search-input::placeholder { color: rgba(255,255,255,0.6); }
.search-input:focus {
  border-color: rgba(255,255,255,0.7);
  box-shadow: 0 0 0 3px rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.2);
}
/* Search input in main content (not hero) */
main .search-input {
  background: #fff; color: var(--text);
  border: 1px solid var(--border);
}
main .search-input::placeholder { color: var(--text-light); }
main .search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(143,0,255,0.1);
}
.search-count {
  display: block; font-size: 0.75rem; margin-top: 0.35rem;
  color: rgba(255,255,255,0.7); min-height: 1.1em;
}
main .search-count { color: var(--text-light); }

/* Search results overlay (hub page) */
.search-results {
  position: absolute; top: 100%; left: 0; right: 0;
  margin-top: 0.5rem; padding: 0.75rem;
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  z-index: 200; display: none; text-align: left;
  max-height: 400px; overflow-y: auto;
}
.search-results.visible { display: block; }
.search-results .flag-grid { padding: 0; }
.search-results .search-results-empty {
  font-size: 0.85rem; color: var(--text-light); padding: 0.5rem 0; text-align: center;
}

/* Hide filtered items on the all-flags page */
.flag-grid a.search-hidden { display: none; }

/* ═══════════════════════════════════════════════════════════════════
   FLAG INDEX GRID
   ═══════════════════════════════════════════════════════════════════ */
.flag-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; padding: 1.25rem 0; }
.flag-grid a {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.2rem 0.75rem 0.2rem 0.2rem;
  background: var(--primary-light); color: var(--primary);
  border-radius: 2rem; text-decoration: none; font-size: 0.9rem;
  transition: background 0.15s;
}
.flag-grid a:hover { background: var(--primary-muted); text-decoration: none; }
.flag-grid .thumb {
  width: 28px; height: 28px; border-radius: 50%; object-fit: cover; flex-shrink: 0;
}
.cat-nav {
  display: flex; flex-wrap: wrap; gap: 0.5rem; padding: 1.25rem 0 0.5rem;
}
.cat-link {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.3rem 0.75rem; background: var(--bg-light); color: var(--text);
  border: 1px solid var(--border); border-radius: 2rem;
  text-decoration: none; font-size: 0.85rem; transition: border-color 0.15s, background 0.15s;
}
.cat-link:hover { border-color: var(--primary); background: var(--primary-light); color: var(--primary); }
.cat-link svg { width: 18px; height: 18px; flex-shrink: 0; }
.cat-count { font-size: 0.75rem; color: var(--text-light); margin-left: 0.15rem; }
.cat-heading {
  font-size: 1.1rem; font-weight: 600; color: var(--text);
  display: flex; align-items: center; gap: 0.4rem;
  padding-bottom: 0.4rem; border-bottom: 1px solid var(--border);
}
.cat-heading svg { width: 20px; height: 20px; flex-shrink: 0; opacity: 0.7; }

/* ═══════════════════════════════════════════════════════════════════
   FLAG INDEX HUB — category cards
   ═══════════════════════════════════════════════════════════════════ */
.hero-sub { color: rgba(255,255,255,0.8); font-size: 0.95rem; margin-top: 0.25rem; }
.hub-container { padding-top: 1.5rem; padding-bottom: 2rem; }
.hub-section-title {
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-light); margin: 1.75rem 0 0.75rem; padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
}
.hub-section-title:first-child { margin-top: 0; }
.hub-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0.75rem;
}
.hub-card {
  display: flex; flex-direction: column; padding: 0.85rem; background: #fff;
  border: 1px solid var(--border); border-radius: 8px;
  text-decoration: none; color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.hub-card:hover {
  border-color: var(--primary); box-shadow: 0 2px 8px rgba(143,0,255,0.1);
  text-decoration: none;
}
.hub-card-top {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.3rem;
}
.hub-icon { display: flex; align-items: center; }
.hub-icon svg { width: 24px; height: 24px; color: var(--text-light); }
.hub-count {
  font-size: 0.75rem; color: var(--text-light); background: var(--primary-light);
  padding: 0.1rem 0.45rem; border-radius: 1rem; font-weight: 500;
}
.hub-title { font-size: 0.95rem; font-weight: 600; color: var(--text); margin-bottom: 0.4rem; }
.hub-thumbs { display: flex; gap: 3px; flex-wrap: wrap; }
.hub-preview {
  width: 24px; height: 16px; object-fit: cover; border-radius: 2px;
  border: 1px solid var(--border);
}
.hub-all-link {
  margin-top: 2rem; text-align: center; font-size: 0.9rem;
}
.hub-all-link a {
  display: inline-block; padding: 0.5rem 1.5rem;
  background: var(--primary-light); color: var(--primary);
  border-radius: 2rem; font-weight: 500;
  transition: background 0.15s;
}
.hub-all-link a:hover { background: var(--primary-muted); text-decoration: none; }

@media (max-width: 600px) {
  .hub-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

/* ═══════════════════════════════════════════════════════════════════
   FLAG PAGE — NAVBAR + VIEWPORT + SIDEBAR
   ═══════════════════════════════════════════════════════════════════ */
body.flag-page { overflow: hidden; height: 100vh; }

/* Layout container below navbar, right of left-rail */
.flag-layout {
  position: fixed;
  top: var(--navbar-h);
  left: var(--left-rail-w); right: 0; bottom: 0;
  display: flex;
}

/* ─── Flag column (left side, contains viewport + sidebar-body when dive open) */
.flag-column {
  flex: 1;
  display: flex; flex-direction: column;
  overflow: hidden;
}

/* ─── Flag viewport ──────────────────────────────────────────────── */
.flag-viewport {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  background-color: #f5f5f5;
  background-image:
    linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
    linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
    linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  padding: 1rem;
}
.flag-img {
  display: block;
  width: 100%; height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.18));
}
.flag-img-placeholder { width: 200px; height: 133px; background: #e0e0e0; border-radius: 4px; }

/* ─── Right sidebar ───────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--bg); border-left: 1px solid var(--border);
  display: flex; flex-direction: column; overflow: hidden;
}

.sidebar-info { flex: 1; overflow-y: auto; padding: 1rem; }
.sidebar-info h1 { font-size: 1.3rem; margin-bottom: 0.15rem; }

/* Nav row inside sidebar */
.sidebar-nav {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.sidebar-nav-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.2rem; height: 2.2rem;
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text); text-decoration: none; flex-shrink: 0; background: none;
}
.sidebar-nav-btn:hover {
  background: var(--primary-light); border-color: var(--primary); color: var(--primary);
  text-decoration: none;
}

/* Details toggle button */
.deep-dive-btn {
  display: inline-flex; align-items: center; gap: 0.35rem;
  flex: 1; justify-content: center;
  padding: 0.4rem 0.75rem; border: 1px solid var(--border);
  border-radius: var(--radius); background: transparent;
  color: var(--text); font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: all 0.15s; font-family: var(--font);
}
.deep-dive-btn:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }

/* ─── Colors table (sidebar) ──────────────────────────────────────── */
.colors-header {
  background: var(--primary-light); color: var(--primary);
  padding: 0.45rem 0.65rem; font-size: 0.95rem; font-weight: 600;
  border-radius: var(--radius) var(--radius) 0 0; margin-top: 0.5rem;
}
.sidebar-info table { font-size: 0.8rem; margin-bottom: 0.5rem; }
.sidebar-info th, .sidebar-info td { padding: 0.3rem 0.4rem; }
.color-swatch {
  display: inline-block; width: 0.9em; height: 0.9em;
  border-radius: 2px; vertical-align: middle; margin-right: 0.3rem;
}
.hex-badge {
  display: inline-block; padding: 0.1em 0.4em; border-radius: 3px;
  font-family: var(--font-mono); font-weight: 600; font-size: 0.85em;
}
.color-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ─── Related flags (bottom of sidebar) ───────────────────────────── */
.related-flags {
  padding: 0.5rem 0.75rem;
  flex-shrink: 0;
}
.wiki-link {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.75rem; color: var(--text-light); text-decoration: none;
  padding: 0.35rem 0; margin-top: 0.25rem; transition: color 0.15s;
}
.wiki-link:hover { color: var(--text); }
.wiki-link svg { width: 16px; height: 16px; flex-shrink: 0; }

/* Bottom group: successor + related + category tags */
.sidebar-bottom {
  margin-top: auto;
  display: flex; flex-direction: column; gap: 0;
}

/* ── Year ribbon — pennant shapes ── */
.year-ribbon {
  display: inline-flex; align-items: baseline; gap: 0.25rem;
  font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.02em; white-space: nowrap;
  line-height: 1.2;
  background: var(--primary);
}
.year-ribbon.former {
  /*  |‾‾‾>  outward arrow right */
  padding: 0.25rem 1rem 0.25rem 0.5rem;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 50%, calc(100% - 10px) 100%, 0 100%);
  color: #fff;
}
.year-ribbon.current {
  /*  flat left, inward V-notch right */
  padding: 0.25rem 1rem 0.25rem 0.5rem;
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 50%, 100% 100%, 0 100%);
  color: #fff; font-weight: 700;
}
.yr-label {
  font-size: 0.45rem; font-weight: 400;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: #70ff00;
}

/* ── Source reference badges ── */
.ref-badge {
  display: inline-flex; align-items: center; gap: 0.25rem;
  font-family: var(--font-mono); font-size: 0.5rem;
  padding: 0.12rem 0.4rem; border-radius: 2px;
  text-decoration: none; letter-spacing: 0.02em;
  margin-top: 0.25rem;
}
.ref-badge.verified {
  color: #4db800; background: #f0ffe0; border: 1px solid #d0f0b0;
}
.ref-badge.verified:hover { background: #e0ffd0; }
.ref-badge.unverified {
  color: #c0a000; background: #fffde0; border: 1px solid #f0e8a0;
}

/* Successor row — historical flag → current flag */
.successor-row {
  display: flex; align-items: center; gap: 0.3rem;
  padding: 0.4rem 0 0.6rem;
}
/* Green drop-shadow only for current flags — angled bottom-right like the logo */
.successor-row:has(.year-ribbon.current) {
  filter: drop-shadow(4px 2px 1.5px rgba(112, 255, 0, 0.35));
}
.successor-arrow {
  display: none;
}
.successor-flag {
  display: inline-flex; line-height: 0;
  transition: transform 0.15s;
}
.successor-flag img {
  height: 1.1em; width: auto; border-radius: 1px;
  border: 0.5px solid var(--border);
}
.successor-flag:hover { transform: scale(1.12); }

/* Category tags strip — rectangular bar with top/bottom borders */
.category-tags {
  display: flex; flex-wrap: wrap; gap: 0;
  border-top: 1px solid var(--primary-muted);
  border-bottom: 1px solid var(--primary-muted);
}
.cat-tag {
  font-size: 0.7rem; font-family: var(--font-mono);
  color: var(--text-light); text-decoration: none;
  padding: 0.25rem 0.5rem;
  background: transparent;
  border-right: 1px solid var(--primary-muted);
  transition: all 0.15s;
  letter-spacing: 0.02em;
  position: relative;
}
.cat-tag:last-child { border-right: none; }
.cat-tag:hover {
  background: var(--primary-light);
  color: var(--primary);
  z-index: 1;
}

/* Related flags */
.related-header {
  font-size: 0.55rem; font-weight: 600; color: var(--text-light);
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 0.2rem;
}
.related-list {
  display: flex; flex-wrap: wrap; gap: 0.25rem;
}
.related-list a {
  display: block; line-height: 0;
  transition: transform 0.15s;
}
.related-list a:hover { transform: scale(1.1); }
.related-thumb {
  height: 1.15em; width: auto; object-fit: contain; flex-shrink: 0;
  border: 0.5px solid var(--border); border-radius: 1px;
}

/* ─── Left rail separator & category icons ────────────────────────── */
.rail-separator {
  width: 24px; height: 1px; background: var(--border); margin: 0.5rem 0;
}
.left-rail .rail-btn + .rail-btn { margin-top: 0.25rem; }
.left-rail .rail-btn:first-child { margin-bottom: 0.4rem; }
.left-rail .rail-btn svg { width: 20px; height: 20px; }

/* ─── Deep dive panel (inside flex layout) ────────────────────────── */
.deep-dive {
  width: 0; flex-shrink: 0;
  background: var(--bg); overflow: hidden;
  transition: width 0.3s ease; display: flex; flex-direction: column;
  border-left: 0 solid var(--border);
}
.deep-dive.open { width: 50%; border-left-width: 1px; }

.deep-dive-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1.25rem; border-bottom: 2px solid var(--primary);
  flex-shrink: 0; min-width: 0;
}
.deep-dive-header h2 {
  font-size: 1.1rem; margin: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.deep-dive-close {
  display: flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border: none; background: none;
  color: var(--text-light); cursor: pointer; border-radius: var(--radius);
  flex-shrink: 0;
}
.deep-dive-close:hover { background: var(--primary-light); color: var(--primary); }

.deep-dive-body {
  flex: 1; overflow-y: auto; padding: 1.25rem; min-width: 0;
}
.deep-dive-body h3 { margin-top: 1.25rem; margin-bottom: 0.5rem; }
.deep-dive-body p { font-size: 0.92rem; line-height: 1.6; }

/* Construction sheet in deep dive */
.cs-block { max-width: 480px; margin: 1rem 0; }
.cs-block img { max-width: 100%; border-radius: var(--radius); }
figcaption { font-size: 0.8rem; color: var(--text-light); text-align: center; margin-top: 0.25rem; }

/* JSON data */
.json-data { margin-top: 2rem; }
.json-data > summary {
  background: var(--primary-light); color: var(--primary);
  padding: 0.45rem 0.75rem; border-radius: var(--radius);
  font-weight: 600; cursor: pointer; font-size: 0.9rem; list-style: none;
}
.json-data > summary::-webkit-details-marker { display: none; }
.json-data pre { max-height: 400px; overflow: auto; font-size: 0.75rem; margin-top: 0.5rem; }

/* Dive-open: hide sidebar entirely; info moves below flag */
body.flag-page.dive-open .sidebar { display: none; }
body.flag-page.dive-open .flag-column > .sidebar-info {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  overflow-y: auto;
  padding: 0.75rem 1rem;
}
body.flag-page.dive-open .flag-column > .sidebar-info h1 { font-size: 1.1rem; }

/* ─── Helpers ─────────────────────────────────────────────────────── */
.text-muted { color: var(--text-light); }
.text-small { font-size: 0.85rem; }
.mb-0 { margin-bottom: 0; }
.btn {
  display: inline-block; padding: 0.5rem 1.25rem;
  background: var(--primary); color: #fff; border-radius: var(--radius);
  font-weight: 600; text-decoration: none; font-size: 0.9rem;
}
.btn:hover { background: var(--primary-hover); color: #fff; text-decoration: none; }

/* ═══════════════════════════════════════════════════════════════════
   HAMBURGER MENU + MOBILE DRAWER (hidden on desktop)
   ═══════════════════════════════════════════════════════════════════ */
.burger-btn {
  display: none; /* shown on mobile via media query */
  width: 44px; height: 44px;
  border: none; background: none; color: #fff;
  cursor: pointer; padding: 0;
  align-items: center; justify-content: center;
  -webkit-tap-highlight-color: transparent;
}
.mobile-drawer-overlay {
  display: none; /* shown when drawer is open */
  position: fixed; top: var(--navbar-h); left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4); z-index: 199;
}
.mobile-drawer-overlay.open { display: block; }
.mobile-drawer {
  position: fixed; top: var(--navbar-h); bottom: 0;
  right: -280px; width: 280px;
  background: #fff; z-index: 200;
  transition: right 0.3s ease;
  box-shadow: none;
  display: flex; flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-drawer.open {
  right: 0;
  box-shadow: -4px 0 16px rgba(0,0,0,0.15);
}
.mobile-drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.mobile-drawer-title {
  font-size: 0.85rem; font-weight: 600; color: var(--text);
}
.mobile-drawer-close {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border: none; background: none; color: var(--text-light);
  cursor: pointer; border-radius: var(--radius);
  -webkit-tap-highlight-color: transparent;
}
.mobile-drawer-close:hover { background: var(--primary-light); color: var(--primary); }
.mobile-drawer-nav {
  display: flex; flex-direction: column; padding: 0.5rem 0;
}
.mobile-drawer-link {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0 1rem;
  min-height: 44px;
  font-size: 0.9rem; color: var(--text); text-decoration: none;
  transition: background 0.15s;
}
.mobile-drawer-link:hover {
  background: var(--primary-light); color: var(--primary);
  text-decoration: none;
}
.mobile-drawer-link svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--text-light); }
.mobile-drawer-link:hover svg { color: var(--primary); }

/* ═══════════════════════════════════════════════════════════════════
   MOBILE BOTTOM NAV (hidden on desktop)
   ═══════════════════════════════════════════════════════════════════ */
.mobile-bottom-nav {
  display: none; /* shown on mobile via media query */
}
.mobile-bottom-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.15rem;
  min-width: 44px; min-height: 44px;
  padding: 0.25rem 0.75rem;
  font-size: 0.65rem; font-weight: 600; color: var(--text);
  text-decoration: none; border: none; background: none;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.15s;
}
.mobile-bottom-btn:hover { color: var(--primary); text-decoration: none; }
.mobile-bottom-btn.disabled { color: #ccc; pointer-events: none; }
.mobile-bottom-btn svg { width: 20px; height: 20px; }

/* ═══════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════ */
@media (max-width: 860px) {
  body.flag-page { overflow: auto; height: auto; }
  .left-rail { display: none; }
  .flag-layout { position: relative; top: 0; left: 0; flex-direction: column; }
  .flag-viewport { min-height: 40vh; }
  .sidebar {
    width: 100%; border-left: none; border-top: 1px solid var(--border);
  }
  .sidebar-info { overflow: visible; }
  .deep-dive.open { width: 100%; }
  .deep-dive-header, .deep-dive-body { min-width: 0; }
  body.flag-page.dive-open .sidebar { display: none; }
  .nav-title { font-size: 0.9rem; }

  /* ── Hamburger button visible on mobile; hide desktop-only links ── */
  .burger-btn { display: flex; }
  .desktop-only { display: none; }

  /* ── Mobile bottom nav ── */
  .mobile-bottom-nav {
    display: flex; justify-content: space-around; align-items: center;
    position: fixed; bottom: 0; left: 0; right: 0;
    height: 52px; background: #fff;
    border-top: 1px solid var(--border);
    z-index: 150;
  }
  body.flag-page { padding-bottom: 56px; }

  /* ── Touch target improvements ── */
  .sidebar-nav-btn { min-width: 44px; min-height: 44px; width: 44px; height: 44px; }
  .deep-dive-close { width: 44px; height: 44px; min-width: 44px; min-height: 44px; }
  .cat-tag { padding: 0.6rem 0.65rem; min-height: 44px; display: inline-flex; align-items: center; }
  .flag-grid a { padding: 0.4rem 0.85rem 0.4rem 0.35rem; min-height: 44px; }
  .related-list a { min-height: 44px; min-width: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 0.3rem; }
  .ref-badge { padding: 0.35rem 0.6rem; min-height: 44px; display: inline-flex; align-items: center; }
  .wiki-link { padding: 0.5rem 0; min-height: 44px; }

  /* ── Font size floors ── */
  .yr-label { font-size: 0.65rem; }
  .ref-badge { font-size: 0.7rem; }
  .ordered-num { font-size: 0.7rem; }
  .index-tag { font-size: 0.65rem; }
  .related-header { font-size: 0.7rem; }
}

/* ─── Ordered page ─────────────────────────────────────────────── */
.ordered-list { display: flex; flex-direction: column; gap: 0; padding: 0.5rem 0; }
.tier-heading {
  font-size: 0.75rem; font-family: var(--font-mono);
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-light); padding: 1.2rem 0 0.4rem;
  border-bottom: 2px solid var(--primary-muted); margin: 0;
}
.tier-heading .tier-count { font-weight: 400; opacity: 0.6; }
.ordered-item {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.25rem 0.3rem; border-bottom: 1px solid #f0f0f0;
}
.ordered-item:hover { background: #fafafa; }
.ordered-item a {
  display: inline-flex; align-items: center; gap: 0.35rem;
  text-decoration: none; color: var(--text); font-size: 0.8rem;
  flex: 1; min-width: 0;
}
.ordered-item a:hover { color: var(--primary); }
.ordered-item .thumb {
  width: 24px; height: 16px; object-fit: cover; flex-shrink: 0;
  border: 1px solid #eee;
}
.ordered-num {
  font-family: var(--font-mono); font-size: 0.55rem;
  color: #ccc; min-width: 2rem; text-align: right; flex-shrink: 0;
}
.index-tag {
  font-family: var(--font-mono); font-size: 0.5rem;
  color: #bbb; white-space: nowrap; flex-shrink: 0;
  margin-left: auto;
}

/* ─── Hub top links ────────────────────────────────────────────── */
.hub-top-links {
  display: flex; gap: 0.5rem; padding: 0.5rem 0; flex-wrap: wrap;
}
.hub-top-links a {
  font-family: var(--font-mono); font-size: 0.65rem;
  text-decoration: none; color: var(--text-light);
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  transform: skewX(-8deg);
  transition: all 0.15s;
}
.hub-top-links a:hover {
  background: var(--primary-light); border-color: var(--primary-muted);
  color: var(--primary);
}