:root {
  --app-bg: #f2f2f2;
  --app-paper: rgba(255, 255, 255, 0.84);
  --app-paper-strong: rgba(255, 255, 255, 0.96);
  --app-line: rgba(4, 135, 217, 0.14);
  --app-ink: #103b5c;
  --app-ink-soft: #5f7f96;
  --app-brand: #0487d9;
  --app-brand-dark: #0369a8;
  --app-brand-soft: #d7eefc;
  --app-accent: #f2e205;
  --app-accent-dark: #c6b800;
  --app-forest: #0f567f;
  --app-shadow: 0 20px 60px rgba(4, 135, 217, 0.14);
}

html {
  scroll-behavior: smooth;
}

body.site-body {
  color: var(--app-ink);
  background:
    radial-gradient(circle at top left, rgba(4, 135, 217, 0.18), transparent 30%),
    radial-gradient(circle at bottom right, rgba(242, 226, 5, 0.2), transparent 24%),
    linear-gradient(180deg, #ffffff 0%, var(--app-bg) 100%);
}

body.site-body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(4, 135, 217, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(4, 135, 217, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 88%);
}

.topbar {
  position: relative;
  z-index: 2;
  background: linear-gradient(90deg, var(--app-brand-dark), var(--app-brand));
  color: #f2f2f2;
  font-size: 0.95rem;
}

.app-navbar {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--app-line);
}

.navbar-brand {
  color: var(--app-ink);
}

.brand-logo {
  width: 3.35rem;
  height: 3.35rem;
  object-fit: contain;
  display: block;
}

.brand-title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-subtitle {
  color: var(--app-ink-soft);
  font-size: 0.9rem;
}

.nav-link {
  color: var(--app-ink);
  font-weight: 600;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--app-brand-dark);
}

.btn-brand {
  background: linear-gradient(135deg, var(--app-brand), #42a9e9);
  border-color: transparent;
  color: #fff;
}

.btn-brand:hover,
.btn-brand:focus {
  background: linear-gradient(135deg, var(--app-brand-dark), var(--app-brand));
  color: #fff;
}

.btn-outline-brand {
  border-color: rgba(4, 135, 217, 0.2);
  color: var(--app-brand-dark);
  background: rgba(255, 255, 255, 0.55);
}

.btn-outline-brand:hover,
.btn-outline-brand:focus {
  background: rgba(242, 226, 5, 0.16);
  border-color: rgba(242, 226, 5, 0.4);
  color: var(--app-brand-dark);
}

.py-lg-6 {
  padding-top: 5rem !important;
  padding-bottom: 5rem !important;
}

.hero-panel,
.info-panel,
.section-card,
.timeline-card,
.cta-panel,
.feature-card,
.featured-card {
  border: 1px solid var(--app-line);
  box-shadow: var(--app-shadow);
  background: var(--app-paper);
  backdrop-filter: blur(14px);
  border-radius: 1.5rem;
}

.hero-panel,
.info-panel,
.cta-panel {
  padding: 2rem;
}

.info-panel {
  background: var(--app-paper-strong);
}

.mini-card {
  padding: 1rem 1.1rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.56);
  border: 1px solid rgba(4, 135, 217, 0.08);
}

.feature-card,
.section-card,
.timeline-card,
.featured-card {
  overflow: hidden;
}

.feature-card .card-body,
.section-card .card-body,
.timeline-card .card-body,
.featured-card .card-body {
  padding: 1.5rem;
}

.featured-card {
  background: linear-gradient(160deg, rgba(3, 105, 168, 0.98), rgba(4, 135, 217, 0.92));
  color: #f2f2f2;
}

.pei-intro-card {
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.96), rgba(215, 238, 252, 0.9)),
    var(--app-paper);
}

.pei-purpose-card {
  background:
    linear-gradient(135deg, rgba(4, 135, 217, 0.12), rgba(242, 226, 5, 0.12)),
    rgba(255, 255, 255, 0.94);
}

.pei-axis-card {
  position: relative;
}

.pei-axis-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 135, 217, 0.02), transparent 50%);
  pointer-events: none;
}

.pei-axis-card .card-body {
  position: relative;
  z-index: 1;
}

.pei-philosophy-card {
  border: 1px solid rgba(4, 135, 217, 0.14);
  box-shadow: var(--app-shadow);
  background:
    linear-gradient(135deg, rgba(15, 86, 127, 0.92), rgba(4, 135, 217, 0.92)),
    var(--app-paper);
  color: #f2f2f2;
  border-radius: 1.5rem;
}

.pei-philosophy-card .section-kicker {
  color: rgba(255, 255, 255, 0.78);
}

.pei-points,
.pei-outcomes-list {
  margin: 0;
  padding-left: 1.15rem;
}

.pei-points li,
.pei-outcomes-list li {
  margin-bottom: 0.75rem;
}

.pei-points li:last-child,
.pei-outcomes-list li:last-child {
  margin-bottom: 0;
}

.pei-outcomes-list {
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: 0.85rem;
}

.pei-outcomes-list li {
  padding: 0.85rem 1rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(4, 135, 217, 0.12);
  font-weight: 600;
  color: var(--app-ink);
}

.section-kicker {
  margin-bottom: 0.8rem;
  color: var(--app-brand-dark);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
  font-weight: 800;
}

.text-forest {
  color: var(--app-brand);
}

.app-display,
.app-title,
.feature-card h2,
.section-card h3,
.timeline-card h3,
.featured-card h3,
.mini-card h2 {
  font-family: "Palatino Linotype", "Book Antiqua", Georgia, serif;
  line-height: 1.12;
}

.app-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 0;
}

.feature-number {
  display: inline-block;
  color: var(--app-accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.82rem;
  font-weight: 800;
}

.badge-brand {
  background: rgba(242, 226, 5, 0.24) !important;
  color: var(--app-brand-dark) !important;
}

.section-heading {
  max-width: 48rem;
  margin-bottom: 2rem;
}

.section-actions {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
}

.section-heading.text-center {
  max-width: 44rem;
}

.form-control {
  border-color: rgba(4, 135, 217, 0.12);
  background: rgba(255, 255, 255, 0.72);
}

.form-control:focus {
  border-color: rgba(4, 135, 217, 0.42);
  box-shadow: 0 0 0 0.25rem rgba(4, 135, 217, 0.14);
}

.site-footer {
  color: var(--app-ink-soft);
}

.reveal-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 991.98px) {
  .app-navbar .navbar-collapse {
    margin-top: 1rem;
    padding: 1rem;
    border: 1px solid var(--app-line);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.98);
  }

  .hero-panel,
  .info-panel,
  .cta-panel {
    padding: 1.5rem;
  }

  .pei-outcomes-list li {
    padding: 0.75rem 0.9rem;
  }
}