:root {
  --bg: #f6fbfb;
  --surface: #ffffff;
  --ink: #10232c;
  --muted: #53646d;
  --line: #dbe7e7;
  --teal: #005a70;
  --teal-dark: #073f4c;
  --coral: #ee684f;
  --mint: #d9f1e9;
  --gold: #f2bf53;
  --shadow: 0 18px 48px rgba(9, 43, 51, .12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

p,
li {
  color: var(--muted);
  line-height: 1.75;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  padding: 14px clamp(18px, 4vw, 58px);
  border-bottom: 1px solid var(--line);
  background: rgba(246, 251, 251, .95);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 800;
}

.brand strong {
  color: var(--teal-dark);
  font-size: 17px;
  line-height: 1.2;
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav a {
  min-height: 40px;
  padding: 10px 12px;
  border-radius: 8px;
  color: #263b44;
  font-size: 14px;
  font-weight: 700;
}

.nav a:hover,
.nav a.active,
.nav a:focus-visible {
  background: var(--mint);
  color: var(--teal-dark);
  outline: none;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 21px;
  height: 2px;
  background: var(--teal-dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: clamp(24px, 4vw, 54px);
  align-items: center;
  min-height: calc(100vh - 74px);
  padding: clamp(42px, 7vw, 94px) clamp(18px, 5vw, 78px);
  background:
    linear-gradient(130deg, rgba(0, 90, 112, .07), rgba(238, 104, 79, .08)),
    radial-gradient(circle at 90% 18%, rgba(242, 191, 83, .24), transparent 32%),
    var(--bg);
}

.hero-content {
  max-width: 920px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  letter-spacing: 0;
}

h1 {
  max-width: 900px;
  font-size: clamp(40px, 7vw, 84px);
  line-height: .99;
}

h2 {
  font-size: clamp(27px, 4vw, 46px);
  line-height: 1.08;
}

h3 {
  font-size: 22px;
  line-height: 1.2;
}

.hero-lead {
  max-width: 780px;
  margin: 24px 0 0;
  color: #314852;
  font-size: clamp(17px, 2.2vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  border-radius: 8px;
  font-weight: 800;
}

.button.primary {
  background: var(--teal);
  color: #fff;
}

.button.secondary {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--teal-dark);
}

.hero-panel,
.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 26px;
}

.panel-tag {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 7px 10px;
  border-radius: 8px;
  background: var(--mint);
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 800;
}

.hero-panel ul {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 20px 0 0;
  list-style: none;
}

.hero-panel li {
  padding-left: 18px;
  border-left: 3px solid var(--coral);
}

.section,
.faq-section {
  padding: clamp(48px, 7vw, 92px) clamp(18px, 5vw, 78px);
}

.section-heading {
  max-width: 840px;
  margin-bottom: 30px;
}

.section-heading p:last-child {
  margin-bottom: 0;
  font-size: 17px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  display: flex;
  min-height: 245px;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
  transition: transform .16s ease, box-shadow .16s ease;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-3px);
  outline: none;
  box-shadow: 0 22px 54px rgba(9, 43, 51, .17);
}

.card span {
  color: var(--teal);
  font-family: Consolas, "Courier New", monospace;
  font-size: 14px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(280px, 1.15fr);
  gap: clamp(24px, 5vw, 66px);
  padding: clamp(48px, 7vw, 92px) clamp(18px, 5vw, 78px);
  background: #fff;
}

.checklist {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  counter-reset: step;
  list-style: none;
}

.checklist li {
  position: relative;
  min-height: 58px;
  padding: 16px 18px 16px 58px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
}

.checklist li::before {
  position: absolute;
  top: 15px;
  left: 16px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  content: counter(step);
  counter-increment: step;
  font-weight: 800;
}

.article-section {
  display: grid;
  gap: 18px;
  padding: clamp(48px, 7vw, 92px) clamp(18px, 5vw, 78px);
  background: linear-gradient(180deg, #f6fbfb, #edf7f4);
}

.article-block {
  max-width: 980px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.article-block p {
  font-size: 18px;
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 980px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

summary {
  min-height: 58px;
  padding: 17px 20px;
  color: var(--teal-dark);
  cursor: pointer;
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 20px 20px;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .7fr);
  gap: 24px;
  padding: 34px clamp(18px, 5vw, 78px);
  background: var(--teal-dark);
  color: #fff;
}

.site-footer p {
  color: rgba(255, 255, 255, .78);
}

.site-footer .disclaimer {
  align-self: end;
  margin: 0;
  color: #fff;
}

@media (max-width: 900px) {
  .site-header {
    min-height: 68px;
  }

  .menu-button {
    display: inline-flex;
  }

  .nav {
    position: absolute;
    top: 68px;
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    width: 100%;
  }

  .hero,
  .split-section,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

@media (max-width: 540px) {
  .brand strong {
    max-width: 190px;
    font-size: 15px;
  }

  h1 {
    font-size: 39px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-panel,
  .card {
    padding: 20px;
  }
}