.section {
  max-width: var(--maxw);
  margin: 0 auto clamp(24px, 5vw, 40px);
  padding: 0 clamp(16px, 4vw, 20px);
}

.section h2 {
  font-size: clamp(22px, 3vw, 34px);
  margin: clamp(12px, 3vw, 18px) 0 6px;
  letter-spacing: -0.3px;
}

.section p.lead {
  color: var(--muted);
  margin: 0 0 clamp(10px, 2.5vw, 14px);
  font-size: clamp(14px, 2vw, 16px);
}

.verticals-nav {
  max-width: 100%;
  margin: 0 auto 20px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.verticals-nav a {
  padding: clamp(10px, 2.5vw, 14px) 0;
  text-align: center;
  border-radius: 0;
  background: linear-gradient(145deg, var(--accent), var(--accent-2));
  color: #001319;
  font-weight: 600;
  text-decoration: none;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  font-size: clamp(12px, 2vw, 16px);
}

.verticals-nav a:last-child {
  border-right: none;
}

.verticals-nav a:hover {
  filter: brightness(1.1);
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.report-card.flip-card {
  position: relative;
  height: clamp(380px, 50vw, 420px);
  min-height: 380px;
  perspective: 1000px;
  transition: transform 0.18s ease;
}

.flip-card:not(.flipped):hover {
  transform: translateY(-3px);
}

.flip-card.flipped {
  transform: none;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.flip-back {
  transform: rotateY(180deg);
}

.card-surface {
  background: linear-gradient(180deg, rgba(18, 24, 35, 0.9), rgba(18, 24, 35, 0.7));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
  transition: box-shadow 0.18s ease, border-color 0.18s ease;
  overflow: hidden;
}

.flip-card:not(.flipped):hover .card-surface {
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
  border-color: rgba(6, 91, 124, 0.5);
}

.flip-card.flipped .card-surface {
  transition: none !important;
}

.flip-card.flipped:hover .card-surface {
  box-shadow: var(--shadow) !important;
  border-color: var(--border) !important;
}

.card-content {
  padding: clamp(12px, 2vw, 14px);
  display: grid;
  gap: clamp(6px, 1.5vw, 8px);
  height: 100%;
}

.title {
  font-weight: 700;
  font-size: clamp(16px, 2.5vw, 18px);
}

.meta {
  color: var(--muted);
  font-size: clamp(11px, 1.8vw, 12px);
}

.actions {
  display: flex;
  gap: clamp(8px, 2vw, 10px);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: clamp(8px, 2vw, 10px) clamp(12px, 2.5vw, 14px);
  border-radius: 9999px;
  text-decoration: none;
  font-weight: 700;
  background: linear-gradient(145deg, var(--accent), var(--accent-2));
  color: #001319;
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: clamp(13px, 1.8vw, 15px);
}

.btn.muted {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.preview {
  max-height: clamp(280px, 45vw, 360px);
  overflow: hidden;
  border-top: 1px solid var(--border);
}

.preview iframe {
  width: 100%;
  height: clamp(260px, 43vw, 340px);
  min-height: 260px;
  border: 0;
  display: block;
  background: #0b0f14;
}

.back-cta {
  display: flex;
  gap: clamp(8px, 2vw, 12px);
  flex-wrap: wrap;
  justify-content: center;
  padding: clamp(16px, 4vw, 24px);
}

.flip-hint {
  color: var(--muted);
  font-size: clamp(11px, 1.8vw, 12px);
  text-align: center;
  margin-top: 8px;
}

@media (max-width: 980px) {
  .report-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .verticals-nav {
    grid-template-columns: repeat(2, 1fr);
  }

  .verticals-nav a {
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .verticals-nav a:nth-child(2n) {
    border-right: none;
  }

  .verticals-nav a:nth-child(n + 3) {
    border-bottom: none;
  }

  .report-card.flip-card {
    height: clamp(360px, 70vw, 400px);
    min-height: 360px;
  }
}

@media (max-width: 560px) {
  .report-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .verticals-nav {
    grid-template-columns: 1fr;
  }

  .verticals-nav a {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .verticals-nav a:last-child {
    border-bottom: none;
  }

  .report-card.flip-card {
    height: auto;
    min-height: 350px;
  }

  .preview {
    max-height: 300px;
  }

  .preview iframe {
    height: 280px;
    min-height: 280px;
  }
}