/* =========================================================
   PRODUCT ENGINEERING SERVICES (LIGHT THEME ONLY)
   ========================================================= */

:root {
  --pes-primary: #101828;
  --pes-text-body: #475467;
  --pes-text-muted: #667085;
  --pes-accent: #2563EB;
  --pes-accent-hover: #1D4ED8;
  --pes-accent-subtle: #EFF6FF;
  --pes-bg: #F9FAFB;
  --pes-surface: #FFFFFF;
  --pes-border: #E5E7EB;
  
  --pes-shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.05);
  --pes-shadow-md: 0 4px 8px -2px rgba(16, 24, 40, 0.05), 0 2px 4px -2px rgba(16, 24, 40, 0.05);
  --pes-shadow-lg: 0 12px 24px -4px rgba(16, 24, 40, 0.04), 0 8px 16px -4px rgba(16, 24, 40, 0.02);
  --pes-radius-sm: 8px;
  --pes-radius: 16px;
  --pes-radius-lg: 24px;
  
  --pes-grid-gap: 24px;
  --pes-section-pad: 60px 20px;
}

.pes-container {
  max-width: 1100px; /* compact */
  margin: 0 auto;
  width: 100%;
}

.pes-section {
  padding: var(--pes-section-pad);
  position: relative;
  z-index: 1;
}

.pes-section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 40px auto;
}

.pes-section-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--pes-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.pes-section-desc {
  font-family: 'Inter', sans-serif;
  font-size: 1.125rem;
  color: var(--pes-text-body);
  line-height: 1.6;
}

/* --- HERO SECTION --- */
.pes-hero {
  padding: 140px 20px 80px 20px;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--pes-bg) 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 50vh;
}

.pes-hero-inner {
  max-width: 700px;
}

.pes-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--pes-accent-subtle);
  color: var(--pes-accent);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  margin-bottom: 20px;
}

.pes-hero-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--pes-primary);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.pes-hero-desc {
  font-size: 1.25rem;
  color: var(--pes-text-body);
  line-height: 1.6;
  margin-bottom: 32px;
  font-family: 'Inter', sans-serif;
}

.pes-btn-primary {
  display: inline-block;
  background: var(--pes-primary);
  color: #fff;
  padding: 14px 28px;
  border-radius: var(--pes-radius-sm);
  font-size: 1rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: var(--pes-shadow-md);
}

.pes-btn-primary:hover {
  background: var(--pes-accent);
  transform: translateY(-2px);
  box-shadow: var(--pes-shadow-lg);
}

/* --- OVERVIEW --- */
.pes-overview {
  background: var(--pes-surface);
  border-top: 1px solid var(--pes-border);
  border-bottom: 1px solid var(--pes-border);
}

.pes-overview-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--pes-grid-gap);
}

.pes-overview-card {
  background: var(--pes-surface);
  border: 1px solid var(--pes-border);
  border-radius: var(--pes-radius);
  padding: 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: var(--pes-shadow-sm);
}

.pes-overview-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--pes-shadow-md);
  border-color: #D1D5DB;
}

.pes-oc-icon {
  width: 48px;
  height: 48px;
  background: var(--pes-accent-subtle);
  color: var(--pes-accent);
  border-radius: var(--pes-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.pes-oc-content h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--pes-primary);
  margin-bottom: 12px;
}

.pes-oc-content p {
  font-size: 0.9375rem;
  color: var(--pes-text-muted);
  line-height: 1.5;
}

/* --- CAPABILITIES --- */
.pes-capabilities {
  background: var(--pes-bg);
}

.pes-capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.pes-cap-item {
  background: var(--pes-surface);
  padding: 24px;
  border-radius: var(--pes-radius);
  border: 1px solid var(--pes-border);
  box-shadow: var(--pes-shadow-sm);
  text-align: center;
  transition: all 0.3s ease;
}

.pes-cap-item:hover {
  border-color: var(--pes-accent);
  box-shadow: var(--pes-shadow-md);
}

.pes-cap-item i {
  font-size: 32px;
  color: var(--pes-accent);
  margin-bottom: 16px;
  display: inline-block;
}

.pes-cap-item h4 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--pes-primary);
  margin-bottom: 8px;
}

.pes-cap-item p {
  font-size: 0.875rem;
  color: var(--pes-text-muted);
  line-height: 1.5;
}

/* --- PROCESS --- */
.pes-process {
  background: var(--pes-surface);
  border-top: 1px solid var(--pes-border);
}

.pes-process-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
}

.pes-process-step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--pes-bg);
  padding: 24px;
  border-radius: var(--pes-radius);
  border: 1px solid var(--pes-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pes-process-step:hover {
  transform: translateX(4px);
  box-shadow: var(--pes-shadow-sm);
}

.pes-step-marker {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--pes-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: 'Outfit', sans-serif;
  font-size: 1.125rem;
}

.pes-step-content h4 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--pes-primary);
  margin-bottom: 8px;
}

.pes-step-content p {
  font-size: 0.9375rem;
  color: var(--pes-text-muted);
  line-height: 1.5;
}

/* --- CTA SECTION --- */
.pes-cta {
  background: linear-gradient(135deg, var(--pes-bg) 0%, #E0E7FF 100%);
  padding: 80px 20px;
  text-align: center;
  border-top: 1px solid var(--pes-border);
}

.pes-cta-inner {
  max-width: 600px;
  margin: 0 auto;
  background: var(--pes-surface);
  padding: 48px 32px;
  border-radius: var(--pes-radius-lg);
  box-shadow: var(--pes-shadow-lg);
  border: 1px solid var(--pes-border);
}

.pes-cta-title {
  font-family: 'Outfit', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--pes-primary);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.pes-cta-desc {
  font-size: 1rem;
  color: var(--pes-text-body);
  line-height: 1.6;
  margin-bottom: 32px;
}

/* Reveal overrides */
.sw-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.sw-reveal.sw-in {
  opacity: 1;
  transform: translateY(0);
}
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Responsive adjustments */
@media (max-width: 768px) {
  .pes-hero {
    padding-top: 120px;
    padding-bottom: 60px;
  }
  .pes-hero-title {
    font-size: 2.25rem;
  }
  .pes-hero-desc {
    font-size: 1.125rem;
  }
  .pes-process-step {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}