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

:root {
  /* Light mode — darkened */
  --ink:        #0e0b07;
  --ink-mid:    #2e2318;
  --ink-light:  #5c4f3f;
  --ink-faint:  #9a8a78;
  --paper:      #ddd5c3;
  --paper-dark: #cec4b0;
  --paper-rule: #b8ac98;
  /* Region colours — Okabe-Ito palette (colour-blind safe, 6 regions) */
  --col-na:     #0072b2;   /* blue           — N. America */
  --col-sa:     #009e73;   /* teal-green     — S. America */
  --col-eu:     #d55e00;   /* vermillion     — Europe     */
  --col-af:     #cc79a7;   /* reddish-purple — Africa     */
  --col-as:     #e69f00;   /* amber          — Asia       */
  --col-oc:     #56b4e9;   /* sky-blue       — Oceania    */
  --rule:       1px solid var(--paper-rule);
  --rule-heavy: 2px solid var(--ink);
  --rule-mid:   1px solid var(--ink-mid);
}

[data-theme="dark"] {
  --ink:        #e8e0d0;
  --ink-mid:    #c0b49e;
  --ink-light:  #8a7d6a;
  --ink-faint:  #5a5048;
  --paper:      #1a1710;
  --paper-dark: #211e16;
  --paper-rule: #38332a;
  /* Region colours — lightened for dark backgrounds */
  --col-na:     #4d9fd4;   /* medium blue    — N. America */
  --col-sa:     #30c090;   /* bright teal    — S. America */
  --col-eu:     #f0a040;   /* bright orange  — Europe     */
  --col-af:     #e090c0;   /* light purple   — Africa     */
  --col-as:     #f5c030;   /* bright amber   — Asia       */
  --col-oc:     #88ccff;   /* pale blue      — Oceania    */
  --rule:       1px solid var(--paper-rule);
  --rule-heavy: 2px solid var(--ink);
  --rule-mid:   1px solid var(--ink-mid);
}

html { font-size: 16px; }

/* Smooth theme transitions */
body, #masthead, #status-bar, .card, .nav-btn, footer {
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

/* ── Theme toggle button ──────────────────────────────────────── */
#theme-toggle {
  background: none;
  border: 1px solid var(--paper-rule);
  color: var(--ink-light);
  font-family: 'Inconsolata', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

#theme-toggle:hover {
  background: var(--paper-dark);
  color: var(--ink);
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Atkinson Hyperlegible', Arial, sans-serif;
  line-height: 1.75;
  min-height: 100vh;
  word-spacing: 0.05em;
}

/* ── Grain overlay ────────────────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}

/* ── Masthead ─────────────────────────────────────────────────── */
#masthead {
  border-bottom: var(--rule-heavy);
  padding: 0 2rem;
  animation: fadeDown 0.6s ease both;
}

.masthead-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0;
  border-bottom: var(--rule);
  font-family: 'Inconsolata', monospace;
  font-size: 0.72rem;
  color: var(--ink-light);
  letter-spacing: 0.04em;
}

.masthead-top .region-dots {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.region-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  display: inline-block;
}

.masthead-title {
  text-align: center;
  padding: 1.4rem 0 1rem;
}

.masthead-title h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
}

.masthead-title .tagline {
  font-family: 'Inconsolata', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-top: 0.4rem;
}

.masthead-nav {
  display: flex;
  gap: 0;
  border-top: var(--rule);
  overflow-x: auto;
  scrollbar-width: none;
}

.masthead-nav::-webkit-scrollbar { display: none; }

.nav-btn {
  background: none;
  border: none;
  border-right: var(--rule);
  padding: 0.55rem 1.1rem;
  font-family: 'Inconsolata', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-mid);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.nav-btn:first-child { border-left: var(--rule); }
.nav-btn:hover { background: var(--paper-dark); }
.nav-btn.active {
  background: var(--ink);
  color: var(--paper);
}

/* ── Status bar ───────────────────────────────────────────────── */
#status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 2rem;
  border-bottom: var(--rule);
  font-family: 'Inconsolata', monospace;
  font-size: 0.7rem;
  color: var(--ink-light);
  letter-spacing: 0.03em;
  background: var(--paper-dark);
}

#status-bar .fetch-time { font-weight: 600; color: var(--ink-mid); }

/* ── Main layout ──────────────────────────────────────────────── */
#content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem 4rem;
}

/* ── Section headers ──────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.35rem;
  border-bottom: var(--rule-heavy);
  animation: fadeIn 0.5s ease both;
}

.section-header h2 {
  font-family: 'Playfair Display', serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.section-count {
  font-family: 'Inconsolata', monospace;
  font-size: 0.68rem;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
}

/* ── Card grid ────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  gap: 0;
  border-left: var(--rule);
  border-top: var(--rule);
}

.card-grid.lead     { grid-template-columns: 1fr; }
.card-grid.standard { grid-template-columns: repeat(3, 1fr); }
.card-grid.wide     { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 900px) {
  .card-grid.standard,
  .card-grid.wide { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .card-grid.standard,
  .card-grid.wide { grid-template-columns: 1fr; }
}

/* ── Article card ─────────────────────────────────────────────── */
.card {
  border-right: var(--rule);
  border-bottom: var(--rule);
  padding: 1.2rem 1.4rem;
  position: relative;
  cursor: pointer;
  transition: background 0.12s;
  animation: fadeIn 0.4s ease both;
}

.card:hover { background: var(--paper-dark); }

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-accent, transparent);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  margin-bottom: 0.9rem;
  display: block;
  filter: grayscale(20%) contrast(1.05);
}

.card-image-placeholder {
  width: 100%;
  aspect-ratio: 16 / 7;
  margin-bottom: 0.9rem;
  display: block;
  overflow: hidden;
  border: var(--rule);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.45rem;
  font-family: 'Inconsolata', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.card-section-tag {
  padding: 0.1rem 0.45rem;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  border: 1px solid currentColor;
}

.card-region { color: var(--ink-faint); }
.card-date   { color: var(--ink-faint); margin-left: auto; }

.card-title {
  font-family: 'Atkinson Hyperlegible', Arial, sans-serif;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.55rem;
  color: var(--ink);
}

.card-grid.lead .card-title     { font-size: clamp(1.5rem, 3vw, 2.4rem); }
.card-grid.standard .card-title { font-size: 1.05rem; }
.card-grid.wide .card-title     { font-size: 1.2rem; }

.card-summary {
  font-size: 0.86rem;
  color: var(--ink-mid);
  line-height: 1.8;
  letter-spacing: 0.01em;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-grid.lead .card-summary {
  -webkit-line-clamp: 4;
  font-size: 0.92rem;
  max-width: 72ch;
}

.card-byline {
  margin-top: 0.7rem;
  font-family: 'Inconsolata', monospace;
  font-size: 0.67rem;
  letter-spacing: 0.04em;
  color: var(--ink-light);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.byline-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Lead card — horizontal on desktop */
@media (min-width: 900px) {
  .card-grid.lead .card {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 1.8rem;
    align-items: start;
    padding: 1.8rem 2rem;
  }

  .card-grid.lead .card-image,
  .card-grid.lead .card-image-placeholder {
    margin-bottom: 0;
    aspect-ratio: 4/3;
  }

  .card-grid.lead .card-body { display: flex; flex-direction: column; justify-content: center; }
}

/* ── Empty state ──────────────────────────────────────────────── */
.empty-state {
  padding: 3rem 1.4rem;
  text-align: center;
  border-right: var(--rule);
  border-bottom: var(--rule);
  color: var(--ink-faint);
  font-family: 'Inconsolata', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── Footer ───────────────────────────────────────────────────── */
footer {
  border-top: var(--rule-heavy);
  font-family: 'Inconsolata', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  display: flex;
  flex-direction: column;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 2rem;
}

footer .legend {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}

footer .legend-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.footer-resources {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.6rem 2rem;
  border-top: var(--rule);
  flex-wrap: wrap;
}

.footer-resources-label {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.6rem;
  color: var(--ink-faint);
  margin-right: 0.3rem;
}

.footer-resources a {
  color: var(--ink-light);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-resources a::after {
  content: '|';
  margin-left: 0.9rem;
  color: var(--paper-rule);
  pointer-events: none;
}

.footer-resources a:last-child::after {
  content: none;
}

.footer-resources a:hover {
  color: var(--ink);
}

/* ── Animations ───────────────────────────────────────────────── */
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── Loading ──────────────────────────────────────────────────── */
#loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem;
  gap: 1rem;
  font-family: 'Inconsolata', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-light);
}

.loading-rule {
  width: 48px; height: 2px;
  background: var(--ink);
  animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scaleX(1); }
  50%       { opacity: 0.3; transform: scaleX(0.4); }
}

/* ── Print stylesheet ─────────────────────────────────────────── */
@media print {

  /* Force light palette regardless of saved theme */
  :root, [data-theme="dark"] {
    --ink:        #000;
    --ink-mid:    #222;
    --ink-light:  #444;
    --ink-faint:  #666;
    --paper:      #fff;
    --paper-dark: #f4f4f4;
    --paper-rule: #bbb;
    --rule:       1px solid #bbb;
    --rule-heavy: 2px solid #000;
    --rule-mid:   1px solid #444;
  }

  /* No grain, no transitions, no animations */
  body::before { display: none; }
  *, *::before, *::after {
    transition: none !important;
    animation:  none !important;
  }

  /* Hide screen-only chrome */
  #theme-toggle,
  .masthead-nav,
  #status-bar,
  #loading,
  .footer-resources { display: none !important; }

  /* Masthead — compact for print */
  #masthead { padding: 0 1rem; }
  .masthead-title h1 { font-size: 3.5rem; }
  .masthead-title .tagline { margin-bottom: 0.5rem; }

  /* Full width, no side padding */
  #content {
    max-width: 100%;
    padding: 0.75rem 1rem 2rem;
  }

  /* Two-column grid for standard cards; lead stays full-width */
  .card-grid.standard,
  .card-grid.wide { grid-template-columns: repeat(2, 1fr); }

  /* Cards — clean borders, no hover, no cursor */
  .card {
    break-inside: avoid;
    cursor: default;
    border: var(--rule);
  }
  .card:hover { background: none; }
  .card::before { display: none; } /* remove accent top bar */

  /* Images — greyscale for ink printing */
  .card-image {
    filter: grayscale(100%) contrast(1.1);
    break-inside: avoid;
  }

  /* Keep section headers clear */
  .section-header { break-after: avoid; }

  /* Footer — keep legend, drop resources */
  footer { border-top: var(--rule-heavy); }
  .footer-main { padding: 0.5rem 1rem; }

  /* Show link URLs after article titles (useful for printed reference) */
  .card-title a::after {
    content: ' (' attr(href) ')';
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--ink-faint);
  }
}