.desktop-nav a[aria-current="page"],
.mobile-nav a[aria-current="page"] {
  color: var(--blue);
}

.pf-hero {
  padding: 104px 0 92px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(circle at 82% 16%, rgba(23, 183, 245, 0.11), transparent 30%),
    var(--white);
}

.pf-hero-inner {
  max-width: 860px;
  margin-inline: auto;
  text-align: center;
}

.pf-hero h1 {
  max-width: 820px;
  margin-inline: auto;
}

.pf-hero-text {
  max-width: 690px;
  margin: 24px auto 0;
  font-size: clamp(1.08rem, 1.7vw, 1.22rem);
}

.pf-hero .button-row {
  justify-content: center;
  margin-top: 32px;
}

.pf-principles {
  padding: 68px 0;
  background: var(--soft);
}

.pf-principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.pf-principles-grid > div {
  padding: 12px 34px;
  border-right: 1px solid var(--border);
}

.pf-principles-grid > div:first-child {
  padding-left: 0;
}

.pf-principles-grid > div:last-child {
  padding-right: 0;
  border-right: 0;
}

.pf-principles-grid span {
  color: var(--blue);
  font-family: "Manrope", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
}

.pf-principles-grid h2 {
  margin-top: 9px;
  font-size: clamp(1.4rem, 2vw, 1.8rem);
}

.pf-principles-grid p {
  margin-top: 10px;
  font-size: 0.98rem;
}

.pf-app-section {
  background: var(--white);
}

.pf-app-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 86px;
  align-items: center;
}

.pf-app-visual {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--white);
  box-shadow: 0 24px 60px rgba(18, 41, 89, 0.1);
}

.pf-app-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 17px 20px;
  color: var(--white);
  background: var(--navy);
  font-family: "Manrope", sans-serif;
}

.pf-app-bar span {
  font-weight: 700;
}

.pf-app-bar small {
  color: #b8dbf6;
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.pf-app-body {
  padding: 32px;
  background: var(--soft);
}

.pf-app-header-line {
  width: 38%;
  height: 13px;
  border-radius: 10px;
  background: #cbd7e4;
}

.pf-app-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 11px;
  margin-top: 22px;
}

.pf-app-cards div {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--white);
}

.pf-app-cards span,
.pf-app-cards strong {
  display: block;
}

.pf-app-cards span {
  color: var(--muted);
  font-size: 0.72rem;
}

.pf-app-cards strong {
  margin-top: 4px;
  color: var(--navy);
  font-family: "Manrope", sans-serif;
  font-size: 0.95rem;
}

.pf-app-wide {
  display: grid;
  gap: 11px;
  margin-top: 16px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--white);
}

.pf-app-wide i {
  height: 8px;
  border-radius: 999px;
  background: #dbe4ed;
}

.pf-app-wide i:nth-child(1) { width: 82%; }
.pf-app-wide i:nth-child(2) { width: 64%; }
.pf-app-wide i:nth-child(3) { width: 74%; }
.pf-app-wide i:nth-child(4) { width: 48%; }

.pf-tools-section {
  background: var(--soft);
}

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

.pf-product-card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--white);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.pf-product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 45px rgba(18, 41, 89, 0.09);
}

.pf-product-image {
  background: #ffffff;
}

.pf-product-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.pf-product-copy {
  padding: 24px;
}

.pf-product-copy > span {
  color: var(--blue);
  font-family: "Manrope", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
}

.pf-product-copy h3 {
  margin-top: 7px;
  font-size: 1.45rem;
}


.pf-product-copy .pf-product-price {
  margin-top: 5px;
  color: var(--navy);
  font-family: "Manrope", sans-serif;
  font-size: 1.02rem;
  font-weight: 700;
}

.pf-product-copy p {
  margin-top: 10px;
}

.pf-product-copy b {
  display: inline-block;
  margin-top: 20px;
  color: var(--blue);
  font-family: "Manrope", sans-serif;
  font-size: 0.92rem;
}

.pf-help-section {
  background: var(--white);
}

.pf-help-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  padding: 42px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.pf-help-inner > div {
  max-width: 690px;
}

.pf-help-inner p:not(.eyebrow) {
  margin-top: 16px;
}

.pf-help-inner .button {
  flex: 0 0 auto;
}

.pf-final {
  padding: 92px 0;
  background: var(--soft-blue);
}

.pf-final-inner {
  max-width: 820px;
  text-align: center;
}

.pf-final h2 {
  max-width: 760px;
  margin-inline: auto;
}

.pf-final .button-row {
  justify-content: center;
  margin-top: 30px;
}

@media (max-width: 900px) {
  .pf-principles-grid {
    grid-template-columns: 1fr;
  }

  .pf-principles-grid > div,
  .pf-principles-grid > div:first-child,
  .pf-principles-grid > div:last-child {
    padding: 22px 0;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .pf-principles-grid > div:last-child {
    border-bottom: 0;
  }

  .pf-app-grid {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .pf-app-visual {
    max-width: 660px;
  }

  .pf-help-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 26px;
  }
}

@media (max-width: 680px) {
  .pf-hero {
    padding: 72px 0 64px;
  }

  .pf-hero .button-row {
    width: 100%;
  }

  .pf-hero .button {
    flex: 1 1 100%;
  }

  .pf-principles {
    padding: 48px 0;
  }

  .pf-app-body {
    padding: 22px;
  }

  .pf-app-cards {
    grid-template-columns: 1fr;
  }

  .pf-product-grid {
    grid-template-columns: 1fr;
  }

  .pf-product-copy {
    padding: 20px;
  }

  .pf-help-inner .button {
    width: 100%;
  }

  .pf-final {
    padding: 70px 0;
  }

  .pf-final .button-row {
    width: 100%;
  }

  .pf-final .button {
    flex: 1 1 100%;
  }
}