/* AI Briefing Room — light "paper" section, separate page from the
   main dark site. Reuses --paper/--ink tokens from main.css; topic
   accents below are darker variants of the brand colors so text still
   passes contrast on a light background (the raw --accent/--purple/etc.
   are tuned for the dark homepage). */

:root {
  --briefing-governance: #007a8c;
  --briefing-rights: #6d28d9;
  --briefing-regulation: #b45309;
  --briefing-case: #047857;
  --briefing-border: #e3dccf;
  --briefing-border-soft: #cfc7b8;
  --briefing-ink-soft: #55504a;
  --briefing-ink-faint: #9a9186;
}

.briefing-page {
  background: var(--paper);
  color: var(--ink);
}

.briefing-hero {
  width: 100%;
  /* top padding clears the site's fixed nav (see nav { position: fixed }
     in main.css — the homepage hero uses the same 8rem for the same
     reason) */
  padding: 8rem 64px 28px;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
}

.briefing-hero-inner {
  width: 100%;
  max-width: 1240px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.briefing-title {
  margin: 0;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 46px;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.briefing-subtitle {
  margin: 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--briefing-ink-soft);
  font-weight: 300;
}

.briefing-main {
  width: 100%;
  padding: 8px 64px 64px;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  border-bottom: 1px solid var(--briefing-border);
}

.briefing-main-inner {
  width: 100%;
  max-width: 1240px;
  display: flex;
  gap: 48px;
  align-items: flex-start;
}

/* --- Sidebar / filters --- */

.briefing-sidebar {
  width: 220px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 24px;
}

.briefing-filter-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.briefing-filter-label {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--briefing-ink-faint);
}

.briefing-chip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 10px;
  border: 1px solid var(--briefing-border);
  background: transparent;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: var(--briefing-ink-soft);
  cursor: pointer;
  text-align: left;
  width: 100%;
}

.briefing-chip-count {
  color: var(--briefing-ink-faint);
  font-weight: 600;
}

.briefing-chip[data-active="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.briefing-chip[data-active="true"] .briefing-chip-count {
  color: var(--paper);
}

.briefing-chip[data-topic] { color: var(--chip-color, var(--briefing-ink-soft)); border-color: var(--briefing-border); }
.briefing-chip[data-topic="governance"] { --chip-color: var(--briefing-governance); }
.briefing-chip[data-topic="human-rights"] { --chip-color: var(--briefing-rights); }
.briefing-chip[data-topic="regulation"] { --chip-color: var(--briefing-regulation); }
.briefing-chip[data-topic="case-study"] { --chip-color: var(--briefing-case); }

.briefing-sidebar-note {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--briefing-ink-faint);
}

/* --- Card list --- */

.briefing-list {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.briefing-card {
  padding: 22px 28px;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid var(--briefing-border);
  display: flex;
  gap: 28px;
  align-items: flex-start;
  text-decoration: none;
  color: inherit;
}

.briefing-card.is-featured {
  padding: 26px 28px;
  border-color: var(--briefing-governance);
  box-shadow: 0 1px 2px rgba(26, 22, 16, 0.04);
}

.briefing-card-meta {
  width: 168px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.briefing-badge {
  padding: 5px 12px;
  border-radius: 999px;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 10px;
  width: fit-content;
}

.briefing-badge-native {
  background: var(--ink);
  color: var(--paper);
  font-weight: 800;
  letter-spacing: 0.05em;
}

.briefing-badge-external {
  border: 1px solid var(--briefing-border-soft);
  color: var(--ink);
  font-weight: 700;
}

.briefing-badge-lang {
  border: 1px solid var(--briefing-border-soft);
  color: var(--briefing-ink-faint);
}

.briefing-card-date {
  font-size: 12px;
  color: var(--briefing-ink-faint);
  margin-top: 4px;
}

.briefing-card-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.briefing-topic-tag {
  padding: 5px 12px;
  border-radius: 999px;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 10px;
  width: fit-content;
  background: color-mix(in srgb, var(--tag-color, var(--briefing-ink-soft)) 10%, white);
  color: var(--tag-color, var(--briefing-ink-soft));
}

.briefing-topic-tag[data-topic="governance"] { --tag-color: var(--briefing-governance); }
.briefing-topic-tag[data-topic="human-rights"] { --tag-color: var(--briefing-rights); }
.briefing-topic-tag[data-topic="regulation"] { --tag-color: var(--briefing-regulation); }
.briefing-topic-tag[data-topic="case-study"] { --tag-color: var(--briefing-case); }

.briefing-card-title {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 18px;
  line-height: 1.25;
  color: var(--ink);
}

.briefing-card.is-featured .briefing-card-title {
  font-weight: 800;
  font-size: 24px;
}

.briefing-card-dek {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--briefing-ink-soft);
  font-weight: 300;
  max-width: 620px;
}

.briefing-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
}

.briefing-card-footer.is-cta-only {
  justify-content: flex-end;
}

.briefing-card-author {
  font-size: 12px;
  color: var(--briefing-ink-faint);
}

.briefing-card-cta {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 13px;
  color: var(--cta-color, var(--ink));
}

.briefing-card:hover .briefing-card-cta {
  text-decoration: underline;
}

.briefing-empty {
  padding: 48px 28px;
  border-radius: 16px;
  border: 1.5px dashed var(--briefing-border-soft);
  text-align: center;
  font-size: 14px;
  color: var(--briefing-ink-faint);
}

.briefing-footer-note {
  width: 100%;
  padding: 24px 64px 64px;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
}

.briefing-footer-note p {
  margin: 0;
  width: 100%;
  max-width: 1240px;
  font-size: 12px;
  color: var(--briefing-ink-faint);
  line-height: 1.6;
}

/* --- Mobile: sidebar becomes a horizontal filter bar, cards stack their meta above the title --- */

@media (max-width: 860px) {
  .briefing-hero { padding: 6.5rem 20px 20px; }
  .briefing-title { font-size: 34px; }
  .briefing-main { padding: 4px 20px 40px; }
  .briefing-main-inner { flex-direction: column; gap: 20px; }

  .briefing-sidebar {
    width: 100%;
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 20px;
  }

  .briefing-filter-group {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
  }

  .briefing-filter-label { width: 100%; }
  .briefing-chip { width: auto; }
  .briefing-sidebar-note { display: none; }

  .briefing-card {
    flex-direction: column;
    padding: 18px;
    gap: 10px;
  }

  .briefing-card-meta {
    width: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .briefing-card-date { margin-top: 0; }
  .briefing-card-title { font-size: 15px; }
  .briefing-card.is-featured .briefing-card-title { font-size: 17px; }
}