/*
 * Page-scoped styles for PGI Energy & Engineering Solutions (single-service-pgi-engineering).
 * Mirrors the structure/conventions of centroai-case-idp.css, scoped under .pgi-engineering-page.
 */

.pgi-engineering-page {
  --primary: var(--primary-blue);
  --accent: var(--primary-blue);
  --accent-dark: var(--primary-blue);
  --action: var(--primary-orange);
  --action-hover: var(--primary-orange);
  --bg-light: var(--bg-secondary);
  --bg-card: var(--card-bg);
  --text-main: var(--text-primary);
  --text-muted: var(--text-secondary);
  --border: var(--card-border, var(--border-color));
  --success: #22c55e;
  --warning: var(--primary-orange);
  --success-soft: rgba(34, 197, 94, 0.14);
  --accent-soft: rgba(0, 159, 227, 0.14);
  --warning-soft: rgba(255, 122, 31, 0.16);
  --badge-bg: var(--surface-soft);
  --badge-text: var(--primary-blue);
  --soft-blue-bg: rgba(0, 159, 227, 0.12);
  --soft-blue-border: rgba(0, 159, 227, 0.28);
}

.pgi-engineering-page {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    sans-serif;
  line-height: 1.5;
  color: var(--text-main);
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
}

.pgi-engineering-page .container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.pgi-engineering-page .section {
  padding: 60px 0;
  border-bottom: 1px solid var(--border);
}

.pgi-engineering-page .section-muted {
  background: var(--bg-light);
}

/* Hero */
.pgi-engineering-page .hero.hero--subpage {
  padding-bottom: 40px;
}

.pgi-engineering-page .hero.hero--subpage.hero-section {
  border-bottom: 1px solid var(--border);
}

.pgi-engineering-page .hero-section .hero-media img {
  object-fit: cover;
}

.pgi-eng-hero-benefits-wrap {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 4px 40px 0;
  box-sizing: border-box;
}

.pgi-engineering-page .hero--subpage .pgi-eng-hero-benefits-wrap {
  padding-top: 8px;
}

.pgi-eng-hero-benefits {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  width: 100%;
  padding-top: 26px;
  border-top: 1px solid var(--border-color);
}

.pgi-eng-hero-benefit {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.4;
}

.pgi-eng-hero-benefit p {
  margin: 0;
}

.pgi-eng-hero-benefit strong {
  color: var(--text-main);
  font-weight: 700;
}

.pgi-eng-hero-benefit-icon {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pgi-eng-hero-benefit-icon-control {
  background: var(--accent-soft);
  color: var(--accent);
}

.pgi-eng-hero-benefit-icon-traceability {
  background: var(--success-soft);
  color: var(--success);
}

.pgi-eng-hero-benefit-icon-approvals {
  background: var(--warning-soft);
  color: var(--warning);
}

/* Grid + card primitives */
.pgi-engineering-page .grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.pgi-engineering-page .grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pgi-engineering-page .grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .pgi-engineering-page .grid-2,
  .pgi-engineering-page .grid-3,
  .pgi-engineering-page .grid-4 {
    grid-template-columns: 1fr;
  }

  .pgi-eng-hero-benefits {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .impact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pgi-engineering-page h1,
.pgi-engineering-page h2,
.pgi-engineering-page h3,
.pgi-engineering-page h4 {
  color: var(--text-main);
  font-weight: 700;
  margin-top: 0;
}

.pgi-engineering-page h1 {
  font-size: 3rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.pgi-engineering-page h2 {
  font-size: 2rem;
  margin-bottom: 24px;
}

.pgi-engineering-page h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.pgi-engineering-page h4 {
  margin-bottom: 8px;
}

.pgi-engineering-page .lead {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 760px;
  margin-bottom: 32px;
}

.pgi-engineering-page .card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.pgi-engineering-page .card:hover {
  box-shadow: var(--card-shadow-hover, 0 10px 30px -10px rgba(0, 0, 0, 0.1));
}

.pgi-engineering-page .card-icon {
  margin-bottom: 16px;
  color: var(--accent);
}

.pgi-engineering-page .text-sm {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.pgi-engineering-page svg {
  display: block;
}

/* Proven at scale (customer proof cards) */
.pgi-engineering-page .proof-card .what-title-row h4 {
  margin: 0;
}

.pgi-engineering-page .proof-icon-oilgas {
  background: var(--warning-soft);
  color: var(--warning);
}

.pgi-engineering-page .proof-icon-gas {
  background: var(--warning-soft);
  color: var(--warning);
}

.pgi-engineering-page .proof-icon-nuclear {
  background: var(--accent-soft);
  color: var(--accent);
}

.pgi-engineering-page .proof-icon-power {
  background: var(--success-soft);
  color: var(--success);
}

.pgi-engineering-page .proof-card-tag {
  font-weight: 600;
  margin-bottom: 16px;
}

.pgi-engineering-page .proof-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.pgi-engineering-page .proof-list li {
  margin-bottom: 6px;
}

.pgi-engineering-page .pgi-eng-problem-footer {
  margin-top: 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
}

/* Business impact stats */
.pgi-engineering-page .impact-title {
  text-align: center;
  margin-bottom: 16px;
}

.pgi-engineering-page .impact-lead {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  text-align: center;
}

.impact-stat .impact-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
}

.impact-stat .impact-label {
  font-weight: 600;
}

.impact-stat .impact-note {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Platform capabilities (what-title pattern, mirrors CentroAI) */
.pgi-engineering-page .what-title-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--soft-blue-bg);
  color: var(--accent);
  margin-bottom: 0;
  flex-shrink: 0;
}

.pgi-engineering-page .what-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.pgi-engineering-page .what-title-row h3 {
  margin: 0;
}

.pgi-engineering-page .solution-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.pgi-engineering-page .solution-list li {
  margin-bottom: 8px;
}

.pgi-eng-capability-card {
  padding: 28px;
}

/* Why PGI */
.pgi-eng-why-subtitle {
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

/* FAQ + final CTA (faq-* classes are shared globally via theme.css) */
.pgi-engineering-page .cta-container-center {
  text-align: center;
}

.pgi-engineering-page .cta-lead {
  margin: 0 auto 32px auto;
}

.pgi-engineering-page .cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .impact-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 560px) {
  .impact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pgi-engineering-page h1 {
    font-size: 2.25rem;
  }
}