/* ============================================================
   INFOXNEX — Section Layouts & Components
   ============================================================ */

/* ---- SECTION BASE ---- */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section--border {
  border-top: 1px solid var(--color-border);
}

.section__header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 72px;
}

.section__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-accent-bright);
  margin-bottom: 16px;
}

.section__title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--color-text);
}

.section__subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---- ABOUT ---- */
.about__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.about__card {
  padding: 44px 32px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.about__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-bg);
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.about__card:hover {
  border-color: var(--color-border-accent);
  background: var(--color-bg-card-hover);
  transform: translateY(-4px);
}

.about__card:hover::before {
  opacity: 1;
}

.about__card-icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent-bright);
  margin-bottom: 24px;
}

.about__card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.about__card p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---- DIFFERENTIATORS ---- */
.diff__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 4px;
}

.diff__item {
  padding: 36px 28px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid transparent;
  transition: all var(--transition-medium);
  position: relative;
}

.diff__item:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border);
}

.diff__header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.diff__icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  color: var(--color-accent-bright);
}

.diff__item h3 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.diff__item p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  padding-left: 50px;
}

/* ---- PILLARS ---- */
.pillars__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pillar {
  position: relative;
  padding: 44px 28px 36px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-medium);
  overflow: hidden;
}

.pillar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.pillar:hover {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.pillar:hover::after {
  opacity: 1;
}

.pillar[data-pillar="identity"]::after { background: var(--pillar-identity); }
.pillar[data-pillar="cloud"]::after { background: var(--pillar-cloud); }
.pillar[data-pillar="network"]::after { background: var(--pillar-network); }
.pillar[data-pillar="endpoint"]::after { background: var(--pillar-endpoint); }

.pillar__number {
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.pillar[data-pillar="identity"] .pillar__number { color: var(--pillar-identity); }
.pillar[data-pillar="cloud"] .pillar__number { color: var(--pillar-cloud); }
.pillar[data-pillar="network"] .pillar__number { color: var(--pillar-network); }
.pillar[data-pillar="endpoint"] .pillar__number { color: var(--pillar-endpoint); }

.pillar__icon {
  width: 52px;
  height: 52px;
  margin-bottom: 20px;
}

.pillar[data-pillar="identity"] .pillar__icon { color: var(--pillar-identity); }
.pillar[data-pillar="cloud"] .pillar__icon { color: var(--pillar-cloud); }
.pillar[data-pillar="network"] .pillar__icon { color: var(--pillar-network); }
.pillar[data-pillar="endpoint"] .pillar__icon { color: var(--pillar-endpoint); }

.pillar__title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.pillar__desc {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: 20px;
}

.pillar__features {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.pillar__features li {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  padding: 6px 0 6px 20px;
  position: relative;
}
.pillar__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  transform: translateY(-50%);
  opacity: 0.5;
}

.pillar[data-pillar="identity"] .pillar__features li::before { background: var(--pillar-identity); }
.pillar[data-pillar="cloud"] .pillar__features li::before { background: var(--pillar-cloud); }
.pillar[data-pillar="network"] .pillar__features li::before { background: var(--pillar-network); }
.pillar[data-pillar="endpoint"] .pillar__features li::before { background: var(--pillar-endpoint); }

/* ---- SERVICE TIERS ---- */
.tiers__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
}

.tier {
  padding: 44px 32px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-medium);
}
.tier:hover {
  transform: translateY(-4px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.tier--featured {
  background: var(--color-bg);
  border-color: var(--color-border-accent);
  position: relative;
}
.tier--featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--color-accent);
  color: #fff;
  padding: 5px 16px;
  border-radius: var(--radius-full);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.tier__badge {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-bright);
  margin-bottom: 14px;
}

.tier__title {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.tier__desc {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: 28px;
}

.tier__list li {
  font-size: 0.88rem;
  padding: 10px 0;
  padding-left: 28px;
  position: relative;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}
.tier__list li:last-child { border-bottom: none; }
.tier__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-emerald);
  font-weight: 700;
  font-size: 0.85rem;
}

/* ---- PIPELINE ---- */
.pipeline {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-bottom: 72px;
  flex-wrap: wrap;
}

.pipeline__step {
  text-align: center;
  flex: 0 1 150px;
  padding: 8px;
}

.pipeline__icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  color: var(--color-accent-bright);
  background: var(--color-accent-dim);
  border-radius: var(--radius-md);
  padding: 8px;
}

.pipeline__step h4 {
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.pipeline__step p {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.pipeline__connector {
  width: 28px;
  height: 2px;
  background: var(--color-bg);
  margin-top: 30px;
  border-radius: 6px;
  flex-shrink: 0;
}

/* Outcomes */
.outcomes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px 36px;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.outcome {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

.outcome svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-emerald);
}

/* ---- FEATURES COVERAGE ---- */
.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.feature {
  padding: 28px 24px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all var(--transition-medium);
}
.feature:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-accent);
  transform: translateY(-2px);
}

.feature__num {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-accent-bright);
  margin-bottom: 14px;
}

.feature h4 {
  font-size: 0.98rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature p {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

/* ---- COMPLIANCE ---- */
.compliance__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.compliance__card {
  padding: 44px 32px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-medium);
}
.compliance__card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-accent);
}

.compliance__frameworks {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
}

.compliance__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent-bright);
  background: var(--color-accent-dim);
  padding: 5px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-accent);
}

.compliance__card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.compliance__card p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

/* ---- USE CASES ---- */
.usecases__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.usecase {
  text-align: center;
  padding: 44px 24px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-medium);
}
.usecase:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-accent);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.usecase__icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 18px;
  color: var(--color-accent-bright);
}

.usecase h3 {
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.usecase p {
  font-size: 0.86rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ---- PRICING ---- */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 52px;
}

.pricing__item {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all var(--transition-medium);
}
.pricing__item:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-accent);
}

.pricing__icon {
  width: 36px;
  height: 36px;
  margin: 0 auto 18px;
  color: var(--color-accent-bright);
}

.pricing__item h3 {
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.pricing__item p {
  font-size: 0.86rem;
  color: var(--color-text-muted);
}

.pricing__cta {
  text-align: center;
}

/* ---- ONBOARDING ---- */
.onboarding__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.onboarding__step {
  text-align: center;
  position: relative;
}

.onboarding__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-accent-dim);
  border: 1px solid var(--color-border-accent);
  color: var(--color-accent-bright);
  font-size: 1.3rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-bottom: 22px;
  transition: all var(--transition-medium);
}

.onboarding__step:hover .onboarding__number {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  border-color: transparent;
}

.onboarding__step h3 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.onboarding__step p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

/* ---- CTA SECTION ---- */
.section--cta {
  padding: 160px 0;
  position: relative;
  overflow: hidden;
}

.section--cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-bg);
  pointer-events: none;
}

.cta__content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta__title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.1;
  margin-bottom: 20px;
}

.cta__subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 44px;
}

.cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- FOOTER ---- */
.footer {
  background: var(--color-bg-subtle);
  color: var(--color-text-muted);
  padding: 72px 0 36px;
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 52px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.footer__logo-icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
}

.footer__tagline {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.footer__nav h4 {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin-bottom: 18px;
}

.footer__nav li { margin-bottom: 10px; }

.footer__nav a {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}
.footer__nav a:hover {
  color: var(--color-text);
}

.footer__contact { margin-top: 18px; }
.footer__contact p { font-size: 0.82rem; margin-bottom: 4px; }
.footer__contact a { color: var(--color-accent-bright); }

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
  text-align: center;
}

.footer__bottom p {
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  :root { --section-padding: 100px; }

  .pillars__grid { grid-template-columns: repeat(2, 1fr); }
  .usecases__grid { grid-template-columns: repeat(2, 1fr); }
  .pricing__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 80px;
    --container-padding: 20px;
  }

  .about__grid { grid-template-columns: 1fr; }
  .diff__grid { grid-template-columns: 1fr; }
  .pillars__grid { grid-template-columns: 1fr; }
  .tiers__grid { grid-template-columns: 1fr; }
  .tier--featured { order: -1; }
  .compliance__grid { grid-template-columns: 1fr; }
  .usecases__grid { grid-template-columns: 1fr; }
  .pricing__grid { grid-template-columns: 1fr; }
  .onboarding__steps { grid-template-columns: 1fr; gap: 40px; }
  .features__grid { grid-template-columns: 1fr 1fr; }
  .diff__item p { padding-left: 50px; }

  .pipeline {
    flex-direction: column;
    align-items: center;
  }
  .pipeline__connector {
    width: 2px;
    height: 20px;
    margin: 0;
    background: var(--color-bg);
  }
  .pipeline__step { flex: none; width: 220px; }

  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 480px) {
  .features__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; align-items: center; }
}

/* ---- LIGHT MODE OVERRIDES ---- */
[data-theme="light"] .about__card,
[data-theme="light"] .diff__item,
[data-theme="light"] .pillar,
[data-theme="light"] .feature,
[data-theme="light"] .compliance__card,
[data-theme="light"] .usecase,
[data-theme="light"] .pricing__item,
[data-theme="light"] .onboarding__step {
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

[data-theme="light"] .about__card:hover,
[data-theme="light"] .pillar:hover,
[data-theme="light"] .compliance__card:hover {
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

[data-theme="light"] .footer {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}