/* cs-bihar-ui · / landing page styles
   Two roles for this page:
     - Signed-out: public marketing → "Sign in" CTA
     - Signed-in:  post-login landing → "Open briefing" CTA + welcome
   The same page handles both; landing.js swaps top-bar + hero CTA based on
   /api/auth/me. */

.p-landing {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: var(--bg-base);
  position: relative;
  overflow-x: clip;
}

/* faint seal watermark — same trick as login, opposite side for variety */
.p-landing::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/seal/seal-of-bihar.svg');
  background-repeat: no-repeat;
  background-position: -180px 80px;
  background-size: 760px auto;
  opacity: 0.025;
  pointer-events: none;
  z-index: 0;
}
[data-theme="dark"] .p-landing::before { opacity: 0.04; filter: invert(1); }

/* ───────── Top bar ───────── */

.p-landing__bar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: color-mix(in srgb, var(--bg-base) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-hair);
}

.p-landing__brand {
  display: inline-flex; align-items: center; gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  color: var(--ink-secondary);
  text-transform: lowercase;
}

.p-landing__brand-seal {
  /* shared element with /login → morph */
  view-transition-name: brand-seal;
  width: 28px; height: 28px;
  color: var(--accent);
  display: inline-block;
}
.p-landing__brand-seal img { width: 100%; height: 100%; }

.p-landing__brand-mark {
  view-transition-name: brand-mark;
  color: var(--ink-primary);
  font-weight: 500;
}

.p-landing__nav {
  display: inline-flex; gap: var(--space-5); align-items: center;
}
.p-landing__nav a {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  text-transform: lowercase;
  color: var(--ink-secondary);
  transition: color var(--dur-fast) var(--ease-soft);
}
.p-landing__nav a:hover { color: var(--ink-primary); }

.p-landing__actions {
  display: inline-flex; gap: var(--space-3); align-items: center;
}

/* role badge in top bar when signed in */
.p-landing__role-badge {
  display: none;
}
.p-landing[data-authed="true"] .p-landing__role-badge { display: inline-flex; }
.p-landing[data-authed="true"] .p-landing__cta--signin { display: none; }
.p-landing[data-authed="false"] .p-landing__cta--briefing { display: none; }

/* ───────── Sections ───────── */

.p-landing__main {
  position: relative; z-index: 1;
  max-width: var(--max-content);
  margin-inline: auto;
  padding: var(--space-8) var(--space-6) var(--space-6);
}

.p-landing__section {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-5);
  padding: var(--space-8) 0;
  border-top: 1px solid var(--line-hair);
  position: relative;
}
.p-landing__section:first-child { border-top: 0; padding-top: 0; }

.p-landing__numeral {
  font-family: var(--font-mono);
  font-size: 56px;
  line-height: 1;
  font-weight: 500;
  color: var(--ink-muted);
  opacity: 0.25;
  user-select: none;
}

.p-landing__section-body {
  display: flex; flex-direction: column;
  gap: var(--space-5);
  min-width: 0;
}

.p-landing__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  color: var(--ink-muted);
  text-transform: lowercase;
}

/* Hero */

.p-landing__hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 96px);
  line-height: 1.05;
  letter-spacing: -2.5px;
  font-weight: 400;
  color: var(--ink-primary);
  max-width: 1000px;
}
.p-landing__hero-title em {
  font-style: normal;
  background: linear-gradient(180deg, transparent 62%, var(--accent-soft) 62%);
  padding-inline: 6px;
  margin-inline: -6px;
}

.p-landing__hero-sub {
  font-family: var(--font-body);
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.55;
  color: var(--ink-secondary);
  max-width: 680px;
}

.p-landing__hero-ctas {
  display: flex; gap: var(--space-3);
  flex-wrap: wrap;
}

.p-landing__hero-greeting {
  display: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  text-transform: lowercase;
  color: var(--accent);
  margin-bottom: var(--space-2);
}
.p-landing[data-authed="true"] .p-landing__hero-greeting { display: inline-block; }

/* Capability cards */

.p-landing__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.p-landing__card {
  background: var(--bg-elev-1);
  border: 1px solid var(--line-hair);
  padding: var(--space-5);
  display: flex; flex-direction: column;
  gap: var(--space-3);
  transition: border-color var(--dur-fast) var(--ease-soft),
              transform var(--dur-fast) var(--ease-soft);
}
.p-landing__card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.p-landing__card-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  color: var(--ink-muted);
}
.p-landing__card-title {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 24px;
  font-weight: 600;
  color: var(--ink-primary);
}
.p-landing__card-desc {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: var(--leading-sm);
  color: var(--ink-secondary);
}
.p-landing__card-foot {
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--line-hair);
  display: flex; align-items: center; justify-content: space-between;
}

/* Governance metrics — large */

.p-landing__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  padding: var(--space-7) 0;
  border-top: 1px solid var(--line-hair);
  border-bottom: 1px solid var(--line-hair);
}
@media (max-width: 720px) {
  .p-landing__metrics { grid-template-columns: 1fr; gap: var(--space-5); }
}

.p-landing__metric { display: flex; flex-direction: column; gap: var(--space-2); }
.p-landing__metric-value {
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 80px);
  line-height: 1;
  letter-spacing: -2px;
  color: var(--ink-primary);
}
.p-landing__metric-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  color: var(--ink-muted);
  text-transform: lowercase;
}
.p-landing__metric-foot {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--ink-secondary);
  margin-top: var(--space-2);
}

/* Footer */

.p-landing__footer {
  position: relative; z-index: 1;
  margin-top: var(--space-7);
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid var(--line-hair);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-xs);
  color: var(--ink-muted);
  display: flex; justify-content: space-between; gap: var(--space-4);
  text-transform: lowercase;
}

/* ───────── Reveal on scroll ───────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s var(--ease-soft), transform 0.6s var(--ease-soft);
}
[data-reveal][data-revealed="true"] {
  opacity: 1; transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}