:root {
  --epm-ink: #1f2933;
  --epm-ink-soft: #3f4f5f;
  --epm-navy: #123047;
  --epm-blue: #2f80a8;
  --epm-blue-soft: #eaf3f7;
  --epm-gold: #d9a928;
  --epm-gold-soft: #fbf4df;
  --epm-red: #b85c5c;
  --epm-paper: #fbfaf7;
  --epm-surface: #ffffff;
  --epm-muted: #6b7785;
  --epm-border: #dbe3ea;
  --epm-border-strong: #b8c6d1;
  --epm-shadow: 0 18px 45px rgba(18, 48, 71, 0.11);
}

body {
  background: var(--epm-paper);
  color: var(--epm-ink);
  font-size: 1.08rem;
  line-height: 1.78;
}

p,
li {
  font-size: 1.06rem;
  line-height: 1.78;
}

.navbar {
  background: rgba(251, 250, 247, 0.96);
  border-bottom: 1px solid var(--epm-border);
  box-shadow: 0 8px 24px rgba(18, 48, 71, 0.06);
  backdrop-filter: blur(10px);
}

.navbar-logo {
  max-height: 36px;
  margin-right: 0.35rem;
}

.navbar-title {
  color: var(--epm-navy);
  font-size: 1.03rem;
  font-weight: 760;
}

.navbar-nav .nav-link {
  color: var(--epm-ink-soft);
  font-weight: 620;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: var(--epm-blue);
}

h1,
h2,
h3,
h4 {
  color: var(--epm-navy);
  font-weight: 760;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.35rem, 6vw, 5.25rem);
  line-height: 0.98;
}

h2 {
  margin-top: 2.6rem;
}

a {
  color: var(--epm-blue);
}

.epm-home .quarto-title-block,
.epm-internal .quarto-title-block {
  display: none;
}

.content-block {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
}

.section-kicker {
  color: var(--epm-blue);
  font-size: 0.82rem;
  font-weight: 780;
  letter-spacing: 0.08em;
  margin-bottom: 0.45rem;
  text-transform: uppercase;
}

.hero-monitor {
  background:
    linear-gradient(120deg, rgba(18, 48, 71, 0.97) 0%, rgba(22, 65, 91, 0.94) 57%, rgba(251, 250, 247, 0.98) 57.2%, rgba(251, 250, 247, 1) 100%),
    var(--epm-paper);
  border-bottom: 1px solid var(--epm-border);
  color: #ffffff;
  margin: -1.1rem calc(50% - 50vw) 2.8rem;
  min-height: clamp(560px, 78vh, 760px);
  padding: clamp(3rem, 7vw, 6.5rem) max(clamp(1rem, 5vw, 5rem), calc((100vw - 1180px) / 2)) 3rem;
  position: relative;
}

.hero-monitor::after {
  background: linear-gradient(90deg, var(--epm-gold) 0 33%, var(--epm-blue) 33% 66%, var(--epm-red) 66% 100%);
  bottom: 0;
  content: "";
  height: 6px;
  left: 0;
  position: absolute;
  right: 0;
}

.hero-layout {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
}

.hero-copy {
  align-self: center;
  max-width: 820px;
}

.hero-monitor h1 {
  color: #ffffff;
  margin: 1.2rem 0 1.3rem;
  max-width: 780px;
}

.hero-monitor p {
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.2rem, 2vw, 1.48rem);
  line-height: 1.64;
  max-width: 760px;
}

.hero-monitor .section-kicker {
  color: var(--epm-gold);
}

.hero-deck {
  align-self: end;
  background: var(--epm-surface);
  border: 1px solid rgba(18, 48, 71, 0.12);
  border-radius: 8px;
  box-shadow: var(--epm-shadow);
  color: var(--epm-ink);
  padding: clamp(1.1rem, 3vw, 1.6rem);
}

.hero-deck h2 {
  color: var(--epm-navy);
  font-size: 1.55rem;
  margin: 0 0 0.35rem;
}

.hero-deck p {
  color: var(--epm-muted);
  font-size: 1.05rem;
}

.hero-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.7rem;
  max-width: 100%;
}

.btn-monitor {
  border: 1px solid transparent;
  border-radius: 8px;
  display: inline-block;
  font-weight: 740;
  padding: 0.78rem 1.05rem;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn-monitor:hover {
  transform: translateY(-1px);
}

.btn-primary-monitor {
  background: var(--epm-gold);
  color: var(--epm-navy);
}

.btn-primary-monitor:hover {
  background: #e5bb45;
  color: var(--epm-navy);
}

.btn-secondary-monitor {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.35);
  color: #ffffff;
  min-width: 11rem;
}

.btn-secondary-monitor:hover {
  background: rgba(255, 255, 255, 0.16);
  color: #ffffff;
}

.kpi-strip {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 1.1rem 0 0;
  overflow: hidden;
}

.kpi-strip > * {
  background: #f4f7f9;
  min-height: 118px;
  padding: 1rem;
}

.kpi-strip strong {
  color: var(--epm-navy);
  display: block;
  font-size: 1.12rem;
  margin-bottom: 0.35rem;
}

.kpi-strip p {
  color: var(--epm-muted);
  display: block;
  font-size: 0.98rem;
  line-height: 1.55;
  margin: 0;
}

.period-badge {
  align-items: center;
  background: var(--epm-gold-soft);
  border: 1px solid rgba(217, 169, 40, 0.45);
  border-radius: 0.45rem;
  box-sizing: border-box;
  color: #6b4e00;
  display: inline-flex;
  font-size: 0.78rem;
  font-weight: 800;
  justify-content: center;
  line-height: 1.15;
  margin-bottom: 0.65rem;
  max-width: 100%;
  min-height: 2.8rem;
  padding: 0.85rem 1.25rem;
  text-decoration: none;
  text-transform: uppercase;
  white-space: normal;
}

.story-panel,
.method-note,
.data-warning,
.infographic-frame {
  border-radius: 8px;
  margin: 1.5rem 0;
}

.story-panel {
  background: var(--epm-surface);
  border: 1px solid var(--epm-border);
  box-shadow: 0 12px 28px rgba(18, 48, 71, 0.06);
  padding: clamp(1.35rem, 3vw, 1.9rem);
}

.story-panel h2,
.story-panel h3 {
  margin-top: 0;
}

.method-note {
  background: var(--epm-blue-soft);
  border-left: 5px solid var(--epm-blue);
  color: var(--epm-ink-soft);
  font-size: 1.08rem;
  padding: 1.15rem 1.3rem;
}

.data-warning {
  background: var(--epm-gold-soft);
  border-left: 5px solid var(--epm-gold);
  color: var(--epm-ink-soft);
  font-size: 1.08rem;
  padding: 1.15rem 1.3rem;
}

.infographic-frame {
  background:
    linear-gradient(180deg, rgba(18, 48, 71, 0.035), rgba(18, 48, 71, 0)),
    var(--epm-surface);
  border: 1px solid var(--epm-border);
  min-height: 260px;
  padding: clamp(1.25rem, 3vw, 1.9rem);
}

.infographic-frame h2,
.infographic-frame h3 {
  margin-top: 0;
}

.frame-grid,
.monitor-grid,
.three-layer-grid,
.method-grid,
.period-grid,
.story-steps {
  display: grid;
  gap: 1rem;
  margin: 1.4rem 0 2rem;
}

.frame-grid,
.monitor-grid,
.three-layer-grid,
.method-grid,
.period-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.story-steps {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.frame-cell,
.monitor-card,
.layer-card,
.method-card,
.period-card,
.story-step {
  background: var(--epm-surface);
  border: 1px solid var(--epm-border);
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(18, 48, 71, 0.05);
  padding: 1.18rem;
}

.frame-cell {
  border-top: 4px solid var(--epm-blue);
}

.frame-cell:nth-child(2) {
  border-top-color: var(--epm-gold);
}

.frame-cell:nth-child(3) {
  border-top-color: var(--epm-red);
}

.monitor-card h2,
.layer-card h3,
.method-card h3,
.period-card h3,
.story-step h3 {
  font-size: 1.16rem;
  margin-top: 0;
}

.monitor-card p,
.layer-card p,
.method-card p,
.period-card p,
.story-step p,
.frame-cell p {
  color: var(--epm-muted);
  font-size: 1.01rem;
}

.small-muted {
  color: var(--epm-muted);
  font-size: 1rem;
}

.proof-strip {
  background: var(--epm-navy);
  border-radius: 8px;
  box-shadow: var(--epm-shadow);
  color: #ffffff;
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 2rem 0;
  overflow: hidden;
}

.proof-item {
  background: rgba(255, 255, 255, 0.055);
  border-top: 4px solid var(--epm-gold);
  min-height: 150px;
  padding: 1.2rem;
}

.proof-item:nth-child(2) {
  border-top-color: var(--epm-blue);
}

.proof-item:nth-child(3) {
  border-top-color: var(--epm-red);
}

.proof-item:nth-child(4) {
  border-top-color: #ffffff;
}

.proof-item strong {
  color: #ffffff;
  display: block;
  font-size: 1.12rem;
  line-height: 1.25;
  margin-bottom: 0.5rem;
}

.proof-item p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
  line-height: 1.55;
  margin: 0;
}

.page-nav {
  border-top: 1px solid var(--epm-border);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-top: 2.2rem;
  padding-top: 1.4rem;
}

.page-nav a {
  background: var(--epm-surface);
  border: 1px solid var(--epm-border);
  border-radius: 8px;
  color: var(--epm-navy);
  display: inline-block;
  font-weight: 740;
  padding: 0.72rem 0.95rem;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.page-nav a:hover {
  background: var(--epm-blue-soft);
  border-color: var(--epm-blue);
  transform: translateY(-1px);
}

.internal-hero {
  background:
    radial-gradient(circle at 0% 0%, rgba(217, 169, 40, 0.16), transparent 34%),
    linear-gradient(120deg, #fbf8ef 0%, #f7faf9 50%, #eef6f4 100%);
  border-bottom: 1px solid var(--epm-border);
  margin: -1.1rem calc(50% - 50vw) 2.8rem;
  padding: clamp(3.5rem, 7vw, 6.5rem) max(clamp(1.25rem, 5vw, 5rem), calc((100vw - 1180px) / 2));
}

.internal-hero-wide {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.78fr);
}

.internal-hero-copy {
  align-self: center;
  max-width: 820px;
}

.internal-hero h1 {
  color: var(--epm-navy);
  font-size: clamp(3.3rem, 7vw, 6.5rem);
  line-height: 0.98;
  margin: 0 0 1.35rem;
  max-width: 850px;
}

.story-lede {
  color: var(--epm-navy);
  font-size: clamp(1.35rem, 2.1vw, 1.85rem);
  font-weight: 720;
  line-height: 1.35;
  margin: 0 0 1.2rem;
  max-width: 780px;
}

.internal-hero-copy > p {
  color: var(--epm-ink-soft);
  font-size: clamp(1.12rem, 1.5vw, 1.28rem);
  max-width: 780px;
}

.internal-hero-card {
  align-self: end;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(18, 48, 71, 0.14);
  border-left: 6px solid var(--epm-gold);
  border-radius: 8px;
  box-shadow: var(--epm-shadow);
  padding: clamp(1.4rem, 3vw, 2rem);
}

.internal-hero-card h2 {
  font-size: 1.55rem;
  margin-top: 0;
}

.internal-hero-card p {
  color: var(--epm-muted);
  font-size: 1.08rem;
}

.editorial-flow {
  max-width: 1180px;
}

.story-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 1.5rem 0 2rem;
}

.insight-strip {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 1.5rem 0 2rem;
}

.insight-card {
  background: var(--epm-surface);
  border: 1px solid var(--epm-border);
  border-top: 4px solid var(--epm-blue);
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(18, 48, 71, 0.05);
  padding: 1.2rem;
}

.insight-card:nth-child(2) {
  border-top-color: var(--epm-gold);
}

.insight-card:nth-child(3) {
  border-top-color: var(--epm-red);
}

.insight-card strong {
  color: var(--epm-navy);
  display: block;
  font-size: 1.14rem;
  margin-bottom: 0.45rem;
}

.insight-card p {
  color: var(--epm-muted);
  font-size: 1.01rem;
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 1100px) {
  .hero-layout,
  .internal-hero-wide,
  .story-grid,
  .insight-strip {
    grid-template-columns: 1fr;
  }

  .hero-monitor {
    background: linear-gradient(180deg, rgba(18, 48, 71, 0.98) 0%, rgba(22, 65, 91, 0.96) 66%, var(--epm-paper) 66.2%, var(--epm-paper) 100%);
  }

  .story-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .monitor-grid,
  .three-layer-grid,
  .method-grid,
  .period-grid,
  .frame-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  body {
    font-size: 1.02rem;
  }

  h1,
  .internal-hero h1 {
    font-size: clamp(2.7rem, 14vw, 4.1rem);
  }

  .hero-monitor,
  .internal-hero {
    margin-top: -0.5rem;
    min-height: auto;
    padding-bottom: 2.5rem;
  }

  .hero-actions,
  .page-nav {
    flex-direction: column;
  }

  .btn-monitor,
  .page-nav a {
    text-align: center;
    width: 100%;
  }

  .monitor-grid,
  .three-layer-grid,
  .method-grid,
  .period-grid,
  .story-steps,
  .frame-grid,
  .kpi-strip,
  .proof-strip {
    grid-template-columns: 1fr;
  }
}