:root {
  --pd-primary: #2563eb;
  --pd-primary-dark: #1d4ed8;
  --pd-primary-light: #eff6ff;
  --pd-primary-muted: #3b82f6;
  --pd-ink: #0f172a;
  --pd-muted: #64748b;
  --pd-border: #e2e8f0;
  --pd-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --pd-shadow-lg: 0 20px 50px rgba(37, 99, 235, 0.15);
}

html { scroll-behavior: smooth; }

body.pd-page {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--pd-ink);
  background: #fff;
}

/* Nav */
.pd-nav {
  background: rgba(255, 255, 255, 0.97) !important;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--pd-border);
  padding: 0.65rem 0;
}

.pd-nav .navbar-brand {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--pd-ink) !important;
}

.pd-brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(145deg, var(--pd-primary-muted), var(--pd-primary-dark));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.3);
}

.pd-nav .nav-link {
  font-weight: 600;
  font-size: 0.9rem;
  color: #475569 !important;
  padding: 0.45rem 0.85rem !important;
  border-radius: 0.5rem;
}

.pd-nav .nav-link:hover {
  color: var(--pd-primary-dark) !important;
  background: var(--pd-primary-light);
}

.pd-nav .product-tag {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pd-primary-dark);
  background: var(--pd-primary-light);
  border: 1px solid #c7d2fe;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  margin-left: 0.5rem;
}

.pd-nav .navbar-toggler {
  border-color: var(--pd-border);
  padding: 0.35rem 0.55rem;
}

.pd-nav .navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(79, 70, 229, 0.25);
}

/* Buttons */
.btn-pd-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.8rem 1.45rem;
  font-size: 0.925rem;
  font-weight: 700;
  color: #fff;
  background: var(--pd-primary);
  border: none;
  border-radius: 0.65rem;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
  transition: background 0.2s, transform 0.2s;
}

.btn-pd-primary:hover {
  background: var(--pd-primary-dark);
  color: #fff;
  transform: translateY(-1px);
}

.btn-pd-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.8rem 1.45rem;
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--pd-primary-dark);
  background: #fff;
  border: 2px solid var(--pd-primary);
  border-radius: 0.65rem;
  text-decoration: none;
  transition: background 0.2s;
}

.btn-pd-outline:hover {
  background: var(--pd-primary-light);
  color: var(--pd-primary-dark);
}

.btn-pd-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.8125rem;
}

.btn-wa-pd {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.8rem 1.45rem;
  font-size: 0.925rem;
  font-weight: 700;
  color: #fff !important;
  background: #25d366;
  border-radius: 0.65rem;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-wa-pd:hover { color: #fff !important; filter: brightness(1.05); }

.btn-wa-pd.btn-pd-sm { padding: 0.45rem 0.9rem; font-size: 0.8125rem; }

/* Hero */
.pd-hero {
  margin-top: 4rem;
  padding: 3rem 0 2.5rem;
  background: linear-gradient(180deg, #eef2ff 0%, #ffffff 55%, #f8fafc 100%);
  overflow: hidden;
  position: relative;
}

.pd-hero::before,
.pd-hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.pd-hero::before {
  width: 420px;
  height: 420px;
  top: -120px;
  right: -80px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
}

.pd-hero::after {
  width: 320px;
  height: 320px;
  bottom: -60px;
  left: -60px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.08) 0%, transparent 70%);
}

.pd-hero .container {
  position: relative;
  z-index: 1;
}

@media (min-width: 992px) {
  .pd-hero { margin-top: 4.25rem; padding: 4rem 0 3rem; }
}

.pd-hero-inner {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .pd-hero-inner { grid-template-columns: 1fr 1fr; gap: 3rem; }
}

.pd-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pd-primary-dark);
  background: var(--pd-primary-light);
  border: 1px solid #c7d2fe;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.pd-hero-title {
  font-size: clamp(1.85rem, 4.2vw, 2.85rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--pd-ink);
  margin-bottom: 1rem;
}

.pd-hero-title span {
  color: var(--pd-primary);
}

.pd-hero-desc {
  font-size: 1.05rem;
  color: var(--pd-muted);
  line-height: 1.65;
  max-width: 36rem;
  margin-bottom: 1.5rem;
}

.pd-hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.pd-hero-pills span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #3730a3;
  background: #fff;
  border: 1px solid #c7d2fe;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
}

.pd-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.pd-hero-visual img {
  width: 100%;
  height: auto;
  border-radius: 1.25rem;
  box-shadow: var(--pd-shadow-lg);
  border: 1px solid var(--pd-border);
}

.pd-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
  margin-top: 0.5rem;
}

@media (min-width: 576px) {
  .pd-stats { grid-template-columns: repeat(4, 1fr); }
}

.pd-stat {
  background: #fff;
  border: 1px solid var(--pd-border);
  border-radius: 0.75rem;
  padding: 0.85rem 0.75rem;
  text-align: center;
  box-shadow: var(--pd-shadow);
}

.pd-stat strong {
  display: block;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--pd-primary-dark);
}

.pd-stat small {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--pd-muted);
  line-height: 1.3;
}

/* Trust bar */
.pd-trust-bar {
  padding: 1rem 0;
  background: #fff;
  border-top: 1px solid var(--pd-border);
  border-bottom: 1px solid var(--pd-border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--pd-muted);
  font-weight: 500;
}

.pd-trust-bar strong {
  color: var(--pd-primary-dark);
  font-weight: 700;
}

/* Sections */
.pd-section {
  padding: 4rem 0;
}

.pd-section.alt {
  background: #f8fafc;
}

.pd-section-head {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 2.5rem;
}

.pd-section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pd-primary);
  margin-bottom: 0.5rem;
}

.pd-section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.65rem;
}

.pd-section-head p {
  color: var(--pd-muted);
  line-height: 1.6;
  margin: 0;
}

/* Workflow steps */
.pd-steps {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .pd-steps { grid-template-columns: repeat(3, 1fr); }
}

.pd-step-card {
  background: #fff;
  border: 1px solid var(--pd-border);
  border-radius: 1rem;
  padding: 1.75rem 1.5rem;
  height: 100%;
  position: relative;
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
}

.pd-step-card:hover {
  border-color: #c7d2fe;
  box-shadow: var(--pd-shadow-lg);
  transform: translateY(-3px);
}

.pd-step-num {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  background: linear-gradient(145deg, var(--pd-primary-muted), var(--pd-primary-dark));
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.25);
}

.pd-step-card h3 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 0.45rem;
}

.pd-step-card p {
  font-size: 0.875rem;
  color: var(--pd-muted);
  line-height: 1.55;
  margin: 0;
}

/* Module cards */
.pd-module-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .pd-module-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 992px) {
  .pd-module-grid { grid-template-columns: repeat(3, 1fr); }
}

.pd-module-card {
  background: #fff;
  border: 1px solid var(--pd-border);
  border-radius: 1rem;
  padding: 1.5rem;
  height: 100%;
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
}

.pd-module-card:hover {
  border-color: #c7d2fe;
  box-shadow: var(--pd-shadow-lg);
  transform: translateY(-3px);
}

.pd-module-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.75rem;
  background: var(--pd-primary-light);
  color: var(--pd-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.pd-module-card h3 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.pd-module-card p {
  font-size: 0.875rem;
  color: var(--pd-muted);
  line-height: 1.55;
  margin: 0;
}

/* Feature cards */
.pd-feature-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .pd-feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 992px) {
  .pd-feature-grid { grid-template-columns: repeat(3, 1fr); }
}

.pd-feature-card {
  background: #fff;
  border: 1px solid var(--pd-border);
  border-radius: 1rem;
  padding: 1.5rem;
  height: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.pd-feature-card:hover {
  border-color: #c7d2fe;
  box-shadow: var(--pd-shadow);
}

.pd-feature-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.85rem;
  background: linear-gradient(145deg, #eef2ff, #fff);
  border: 1px solid #c7d2fe;
  color: var(--pd-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.pd-feature-card h3 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 0.45rem;
}

.pd-feature-card p {
  font-size: 0.875rem;
  color: var(--pd-muted);
  line-height: 1.55;
  margin: 0;
}

/* Highlight box */
.pd-highlight {
  margin-top: 2.5rem;
  border-radius: 1.25rem;
  padding: 2.5rem 1.75rem;
  color: #fff;
  text-align: center;
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #3b82f6 100%);
  box-shadow: 0 20px 50px rgba(37, 99, 235, 0.22);
}

.pd-highlight h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
}

.pd-highlight p {
  opacity: 0.95;
  line-height: 1.65;
  max-width: 36rem;
  margin: 0 auto 1.25rem;
  font-size: 0.975rem;
}

.pd-highlight .btn-pd-primary {
  background: #fff;
  color: var(--pd-primary-dark);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.pd-highlight .btn-pd-primary:hover {
  background: var(--pd-primary-light);
  color: var(--pd-primary-dark);
}

/* CTA band */
.pd-cta-band {
  padding: 3.5rem 0;
  background: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%);
  color: #fff;
  text-align: center;
}

.pd-cta-band h2 {
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  font-weight: 800;
  margin-bottom: 0.65rem;
}

.pd-cta-band p {
  opacity: 0.95;
  max-width: 32rem;
  margin: 0 auto 1.25rem;
  line-height: 1.6;
}

.pd-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
}

.pd-cta-band .btn-pd-primary {
  background: #fff;
  color: var(--pd-primary-dark);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.pd-cta-band .btn-pd-primary:hover {
  background: var(--pd-primary-light);
  color: var(--pd-primary-dark);
}

.pd-cta-band .btn-pd-outline-light {
  border-color: rgba(255, 255, 255, 0.85);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(4px);
}

.pd-cta-band .btn-pd-outline-light:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  border-color: #fff;
}

/* Checklist panel */
.pd-checklist {
  background: #fff;
  border: 1px solid var(--pd-border);
  border-radius: 1.25rem;
  padding: 1.5rem;
  box-shadow: var(--pd-shadow);
}

.pd-checklist h3 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pd-muted);
  margin-bottom: 1rem;
}

.pd-checklist ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.pd-checklist li {
  display: flex;
  gap: 0.65rem;
  font-size: 0.9rem;
  line-height: 1.55;
  color: #334155;
}

.pd-checklist li i {
  color: var(--pd-primary);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

/* Footer */
.pd-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 2rem 0;
  text-align: center;
  font-size: 0.875rem;
}

.pd-footer a {
  color: #a5b4fc;
  text-decoration: none;
}

.pd-footer a:hover { color: #fff; }