/* ============================================================
   NorthArc — /briefings index page styles
   Layered on top of briefing.css (shared masthead, header, footer).
   ============================================================ */

/* ── Index masthead — larger title than individual briefings ── */
.index-title {
  font-size: clamp(34px, 6.4vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  font-weight: 400;
  color: var(--ink);
  margin: 28px 0 0;
  max-width: 22ch;
}
.index-title .accent { font-style: italic; color: var(--arc); }
.index-title .mobile-only { display: none; }
@media (max-width: 767px) {
  .index-title .desktop-only { display: none; }
  .index-title .mobile-only { display: inline; }
  .index-title { max-width: none; }
}

/* ── Metadata strip — 4 columns (overrides briefing.css 5-col) ── */
.briefing-page .index-metadata {
  grid-template-columns: repeat(4, 1fr);
}
.briefing-page .index-metadata .pdf-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--arc);
  text-decoration: none;
  transition: color 200ms;
}
.briefing-page .index-metadata .pdf-link:hover { color: var(--ink); }
@media (max-width: 1023px) {
  .briefing-page .index-metadata { grid-template-columns: repeat(4, 1fr); gap: 18px; }
  .briefing-page .index-metadata .value { font-size: 13px; }
}
@media (max-width: 767px) {
  .briefing-page .index-metadata {
    grid-template-columns: 1fr 1fr;
    gap: 22px 18px;
  }
  .briefing-page .index-metadata .pdf-cell { display: none; }
  .briefing-page .index-metadata .value { font-size: 13px; }
  .briefing-page .index-metadata .label { font-size: 10px; letter-spacing: 0.18em; }
  .briefing-page .index-metadata .forthcoming-num { color: var(--arc); }
}

/* ── Filter bar ─────────────────────────────────────────── */
.filter-section { margin-top: 60px; }
.filter-eyebrow {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(21,23,27,0.45);
  margin: 0 0 22px;
}
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  position: relative;
}
.filter-pill {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 18px;
  background: transparent;
  border: 1px solid var(--soft-divider);
  border-radius: 18px;
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: rgba(21,23,27,0.65);
  cursor: pointer;
  white-space: nowrap;
  transition: background 200ms, color 200ms, border-color 200ms;
}
.filter-pill:hover {
  border-color: rgba(21,23,27,0.30);
  color: var(--ink);
}
.filter-pill.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #FFFFFF;
}
.filter-pill .filter-count {
  margin-left: 6px;
  opacity: 0.65;
}
.filter-pill:focus-visible {
  outline: 2px solid var(--arc);
  outline-offset: 3px;
}

/* Active filter indicator */
.active-filter-row {
  margin-top: 18px;
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: rgba(21,23,27,0.65);
}
.active-filter-row[hidden] { display: none; }
.active-filter-row .filter-clear {
  background: none;
  border: none;
  padding: 0;
  margin-left: 6px;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: var(--arc);
  cursor: pointer;
}
.active-filter-row .filter-clear:hover { color: var(--ink); }

/* Mobile horizontal scroll filter bar */
@media (max-width: 767px) {
  .filter-bar-wrap {
    position: relative;
    margin-left: -24px;
    margin-right: -24px;
  }
  .filter-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    padding: 4px 24px 12px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .filter-bar::-webkit-scrollbar { display: none; }
  .filter-pill {
    scroll-snap-align: start;
    flex: 0 0 auto;
    height: 32px;
    padding: 0 14px;
    font-size: 10px;
  }
  .filter-bar-wrap::after {
    content: "";
    position: absolute;
    right: 0;
    top: 0;
    bottom: 12px;
    width: 40px;
    background: linear-gradient(to right, transparent, var(--cream));
    pointer-events: none;
    transition: opacity 200ms;
  }
  .filter-bar-wrap.is-scrolled::after { opacity: 0; }
  .filter-hint { display: block; }
}
.filter-hint {
  display: none;
  margin: 8px 24px 0;
  font-size: 10px;
  font-style: italic;
  color: rgba(21,23,27,0.45);
  transition: opacity 200ms;
}
.filter-hint.is-hidden { opacity: 0; }

/* ── Section eyebrow used above featured + earlier ───────── */
.section-eyebrow-row {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(21,23,27,0.45);
  margin: 0 0 24px;
}

/* ── Featured (most recent) card ─────────────────────────── */
.featured-section { margin-top: 80px; }
.featured-card {
  display: block;
  background: var(--ink);
  border-radius: 12px;
  padding: 35px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 220ms cubic-bezier(.2,.7,.2,1);
}
.featured-card:hover { box-shadow: 0 0 0 1px rgba(91,108,242,0.5); }
.featured-card:focus-visible { outline: 2px solid var(--arc); outline-offset: 4px; }
.featured-card-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  align-items: start;
}
.featured-eyebrow {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--arc-light);
  margin: 0 0 22px;
}
.featured-title {
  font-size: clamp(26px, 4.2vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 400;
  color: #FFFFFF;
  margin: 0 0 24px;
  max-width: 18ch;
}
.featured-title .accent { font-style: italic; color: var(--arc-light); }
.featured-hook {
  font-size: 16px;
  line-height: 1.5;
  color: rgba(255,255,255,0.78);
  margin: 0;
  max-width: 50ch;
}
.featured-card-right {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
}
.featured-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.featured-pill {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  border: 1px solid rgba(91,108,242,0.5);
  border-radius: 13px;
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--arc-light);
  text-transform: uppercase;
  white-space: nowrap;
}
.featured-cta-desktop {
  font-family: 'Geist', ui-sans-serif, system-ui, sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--arc-light);
  margin-top: auto;
}
.featured-card-footer {
  margin-top: 32px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.16);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.featured-meta {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.55);
}
.featured-cta {
  font-size: 14px;
  font-weight: 500;
  color: var(--arc-light);
}

@media (max-width: 1023px) {
  .featured-card { padding: 25px; }
  .featured-card-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .featured-card-right { gap: 18px; }
  .featured-cta-desktop { display: none; }
  .featured-title { font-size: clamp(26px, 4.6vw, 38px); }
}
@media (max-width: 767px) {
  .featured-card { padding: 22px; }
  .featured-eyebrow {
    font-size: 9px;
    letter-spacing: 0.18em;
    line-height: 1.5;
  }
  .featured-eyebrow .meta-sep { display: block; }
  .featured-title { font-size: 26px; line-height: 1.1; }
  .featured-hook { font-size: 13px; }
  .featured-pill { height: 22px; padding: 0 10px; font-size: 9px; }
  .featured-meta { font-size: 11px; }
  .featured-cta, .featured-cta-mobile { font-size: 13px; }
  .featured-card-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

/* ── Earlier briefings list ──────────────────────────────── */
.earlier-section { margin-top: 100px; }
.earlier-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
.earlier-card {
  display: block;
  border: 1px solid var(--soft-divider);
  border-radius: 12px;
  padding: 32px;
  text-decoration: none;
  color: inherit;
  transition: border-color 220ms cubic-bezier(.2,.7,.2,1);
  background: transparent;
}
.earlier-card:hover { border-color: rgba(91,108,242,0.5); }
.earlier-card:focus-visible { outline: 2px solid var(--arc); outline-offset: 3px; }
.earlier-card[hidden] { display: none; }
.earlier-card-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.earlier-num,
.earlier-sector {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.earlier-num { color: rgba(21,23,27,0.45); }
.earlier-sector { color: var(--arc); }
.earlier-title {
  font-size: 32px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-weight: 500;
  color: var(--ink);
  margin: 38px 0 24px;
  max-width: 30ch;
}
.earlier-hook {
  font-size: 14px;
  line-height: 1.55;
  color: rgba(21,23,27,0.65);
  margin: 0 0 28px;
  max-width: 70ch;
}
.earlier-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 28px;
}
.earlier-pill {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 11px;
  border: 1px solid rgba(91,108,242,0.4);
  border-radius: 12px;
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--arc);
  text-transform: uppercase;
  white-space: nowrap;
}
.earlier-divider {
  border: none;
  border-top: 1px solid var(--card-border);
  margin: 0 0 18px;
}
.earlier-meta {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(21,23,27,0.45);
}
.earlier-cta {
  font-size: 13px;
  font-weight: 500;
  color: var(--arc);
}

@media (max-width: 767px) {
  .earlier-card { padding: 24px; }
  .earlier-num, .earlier-sector { font-size: 9px; }
  .earlier-title { font-size: 22px; margin: 28px 0 18px; }
  .earlier-hook { font-size: 13px; margin-bottom: 22px; }
  .earlier-pill { height: 22px; padding: 0 10px; font-size: 9px; }
  .earlier-meta { font-size: 11px; }
  .earlier-cta { font-size: 12px; }
}

/* ── Placeholder ("next briefing in editing") card ───────── */
.placeholder-card {
  margin-top: 22px;
  border: 1px dashed var(--soft-divider);
  border-radius: 12px;
  padding: 40px 32px;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.placeholder-card[hidden] { display: none; }
.placeholder-eyebrow {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(21,23,27,0.45);
  margin: 0 0 12px;
}
.placeholder-text {
  font-size: 14px;
  color: rgba(21,23,27,0.55);
  margin: 0;
}
@media (max-width: 767px) {
  .placeholder-card { min-height: 240px; padding: 36px 22px; }
  .placeholder-text { font-size: 12px; }
}

/* ── Empty state ─────────────────────────────────────────── */
.empty-state {
  background: #FFFFFF;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 60px 40px;
  text-align: center;
  margin-top: 80px;
}
.empty-state[hidden] { display: none; }
.empty-state-eyebrow {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(21,23,27,0.45);
  margin: 0 0 16px;
}
.empty-state-title {
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
  margin: 0 0 14px;
  letter-spacing: -0.005em;
}
.empty-state-body {
  font-size: 14px;
  color: rgba(21,23,27,0.65);
  margin: 0 0 22px;
  max-width: 50ch;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}
.empty-state-clear {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--arc);
  cursor: pointer;
}
.empty-state-clear:hover { color: var(--ink); }

/* ── Footer area: newsletter + structure review CTA ───────────── */
.index-footer {
  margin-top: 120px;
  padding-top: 60px;
  border-top: 0.5px solid var(--soft-divider);
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 80px;
}
.footer-rule {
  background: var(--soft-divider);
  width: 1px;
  align-self: stretch;
}
.footer-eyebrow {
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(21,23,27,0.45);
  margin: 0 0 22px;
}
.footer-headline {
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 400;
  color: var(--ink);
  margin: 0 0 18px;
  max-width: 22ch;
}
.footer-headline .accent { font-style: italic; }
.footer-supporting {
  font-size: 14px;
  line-height: 1.5;
  color: rgba(21,23,27,0.65);
  margin: 0 0 26px;
}

/* Newsletter form */
.newsletter-form {
  display: flex;
  gap: 12px;
  align-items: stretch;
  max-width: 500px;
}
.newsletter-form input[type="email"] {
  flex: 1 1 auto;
  height: 44px;
  padding: 0 14px;
  border-radius: 6px;
  border: 1px solid var(--card-border);
  background: #FFFFFF;
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
  transition: border-color 200ms;
  min-width: 0;
}
.newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--arc);
}
.newsletter-form input[type="email"]::placeholder { color: rgba(21,23,27,0.45); }
.newsletter-form input.hp {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.newsletter-submit {
  flex: 0 0 auto;
  height: 44px;
  padding: 0 22px;
  background: var(--ink);
  color: #FFFFFF;
  border: none;
  border-radius: 6px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 200ms;
}
.newsletter-submit:hover { background: #2A2D34; }
.newsletter-submit:focus-visible { outline: 2px solid var(--arc); outline-offset: 2px; }
.newsletter-submit:disabled {
  opacity: 0.5;
  cursor: wait;
}
.newsletter-feedback {
  margin: 14px 0 0;
  font-size: 13px;
  font-style: italic;
}
.newsletter-feedback[hidden] { display: none; }
.newsletter-feedback.is-success { color: rgba(21,23,27,0.65); }
.newsletter-feedback.is-error { color: var(--warning-strong); }

/* Structure Review CTA — no card wrapper, sits on cream */
.review-cta-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  background: var(--arc);
  color: #FFFFFF;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background 200ms;
}
.review-cta-button:hover { background: var(--arc-hover); }

@media (max-width: 1023px) {
  .index-footer {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  .footer-rule {
    width: 100%;
    height: 1px;
    background: var(--soft-divider);
  }
}
@media (max-width: 767px) {
  .index-footer { margin-top: 80px; padding-top: 50px; gap: 50px; }
  .footer-supporting { font-size: 12px; }
  .newsletter-form {
    flex-direction: column;
    gap: 10px;
    max-width: none;
  }
  .newsletter-submit { width: 100%; }
  .review-cta-button { width: 100%; justify-content: center; }
}

/* ── Mast spacing tweaks for index page ──────────────────── */
.briefing-page .index-masthead { margin-top: 100px; }
@media (max-width: 1023px) { .briefing-page .index-masthead { margin-top: 70px; } }
@media (max-width: 767px) { .briefing-page .index-masthead { margin-top: 48px; } }