#po-hero {
  position: relative;
  overflow: hidden;
  padding: 0;
  background: var(--color-bg);
}

.po-hero-photo {
  position: absolute;
  inset: 0;
  background-image: url("../img/fsw/platform-hero-2000.webp");
  background-repeat: no-repeat;
  background-position: right center;
  background-size: contain;
}

:root[data-theme="dark"] .po-hero-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--color-bg) 0%, var(--color-bg) 32%, rgba(18, 22, 26, 0) 64%);
}

.po-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  min-height: 560px;
  padding-top: 52px;
  padding-bottom: 52px;
}

.po-hero-text {
  max-width: 560px;
  text-align: left;
}

.po-hero-text h1 {
  margin: 14px 0 16px;
  font-size: clamp(2rem, 3.4vw, 3.1rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.po-hero-sub {
  max-width: 450px;
  margin: 0 0 16px;
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-primary-hover);
}

.po-hero-text p.po-hero-lead {
  max-width: 430px;
  margin: 0 0 28px;
  font-size: 1.14rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--color-text);
}

.po-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 1100px) {
  .po-hero-inner {
    min-height: 480px;
  }

  .po-hero-photo {
    background-size: 150% auto;
    background-position: 88% center;
  }
}

@media (max-width: 860px) {
  .po-hero-photo {
    position: relative;
    inset: auto;
    height: 0;
    padding-bottom: 33.35%;
    background-size: cover;
    background-position: center;
  }

  .po-hero-inner {
    min-height: 0;
    padding-top: 28px;
    padding-bottom: 10px;
  }

  .po-hero-text,
  .po-hero-text p.po-hero-lead {
    max-width: 100%;
  }
}

@media (max-width: 620px) {
  .po-hero-text p.po-hero-lead {
    font-size: 1.02rem;
  }
}

.po-eco {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  color: var(--color-primary);
}

.po-eco-lines {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.po-eco-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}

.po-node {
  display: block;
  padding: 18px 18px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  text-align: center;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.po-node:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
}

.po-node h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
  color: var(--color-text);
}

.po-node p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-text-muted);
}

.po-hub {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 26px 22px 28px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  background-image: linear-gradient(var(--color-primary-soft), var(--color-primary-soft));
  text-align: center;
}

.po-hub strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--color-primary-hover);
}

.po-hub span {
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--color-text);
}

.po-chain {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin: 36px 0 0;
}

.po-chain + .fsw-callout {
  margin-top: 46px;
}

.po-chain span {
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
}

.po-chain em {
  font-style: normal;
  font-weight: 700;
  color: var(--color-primary);
}

.po-old {
  max-width: 780px;
  margin: 0 auto;
  padding: 24px 28px 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.po-old-head {
  margin: 0 0 16px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.po-old-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 30px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.po-old-list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-text);
}

.po-old-list li::before {
  content: "\00D7";
  position: absolute;
  left: 0;
  top: -1px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #C8564A;
  opacity: 0.75;
}

.po-part {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.po-part-card {
  display: flex;
  flex-direction: column;
  padding: 28px 30px 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.po-part-card h3 {
  margin: 0 0 6px;
  font-size: 1.16rem;
}

.po-part-role {
  margin: 0 0 14px;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-primary-hover);
}

.po-part-card p {
  margin: 0 0 16px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.po-part-card a {
  margin-top: auto;
  align-self: flex-start;
  color: var(--color-primary);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1.5px;
}

.po-part-card a:hover {
  color: var(--color-primary-hover);
}

.po-twocol {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 44px;
  max-width: 980px;
  margin: 0 auto;
}

.po-twocol h3 {
  margin: 0 0 12px;
  font-size: 1.16rem;
}

.po-twocol p {
  margin: 0 0 14px;
  font-size: 0.96rem;
  line-height: 1.72;
  color: var(--color-text-muted);
}

.po-twocol p:last-child {
  margin-bottom: 0;
}

.po-truths {
  max-width: 820px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.po-truths li {
  position: relative;
  padding: 14px 0 14px 32px;
  border-bottom: 1px solid var(--color-border);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
}

.po-truths li:last-child {
  border-bottom: 0;
}

.po-truths li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  top: 14px;
  font-weight: 700;
  color: var(--color-primary);
}

@media (max-width: 900px) {
  .po-eco-lines {
    display: none;
  }

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

  .po-hub {
    grid-column: 1 / -1;
    order: -1;
  }

  .po-part,
  .po-twocol,
  .po-old-list {
    grid-template-columns: 1fr;
  }

  .po-twocol {
    gap: 30px;
  }
}

@media (max-width: 560px) {
  .po-eco-grid {
    grid-template-columns: 1fr;
  }
}