:root {
  color-scheme: light;
  --ink: #10272a;
  --muted: #587174;
  --line: #d7e7e5;
  --paper: #f5fbfa;
  --surface: #ffffff;
  --tint: #eaf6f4;
  --accent: #166b72;
  --accent-dark: #0d4f58;
  --accent-soft: #d8f0ed;
  --blue: #2f74b5;
  --warm: #f4a340;
  --shadow: 0 18px 48px rgba(16, 39, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(2.25rem, 8vw, 5.2rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(1.55rem, 6vw, 3rem);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.08rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 10px;
  padding: 14px clamp(18px, 5vw, 64px);
  background: rgba(245, 251, 250, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  border-radius: 8px;
  font-size: 0.78rem;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  width: 100%;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 4px;
  color: var(--muted);
  font-size: 0.92rem;
  white-space: nowrap;
}

.site-nav a,
.site-footer a {
  text-decoration: none;
}

.site-nav a:hover,
.site-footer a:hover {
  color: var(--accent-dark);
}

.hero,
.section,
.site-footer,
.policy-page {
  padding-inline: clamp(18px, 5vw, 64px);
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-block: clamp(48px, 10vh, 96px);
  background:
    linear-gradient(145deg, rgba(22, 107, 114, 0.12), rgba(47, 116, 181, 0.08)),
    var(--paper);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1.05rem, 4vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}

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

.button-primary:hover {
  background: var(--accent-dark);
}

.button-secondary {
  color: var(--accent-dark);
  background: #fff;
  border-color: var(--line);
}

.privacy-note {
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-card {
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.document-card {
  padding: 20px;
  background: linear-gradient(180deg, #ffffff, #eef8f7);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.document-card h2 {
  margin-bottom: 8px;
  font-size: 1.35rem;
}

.tag {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 4px 10px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 800;
}

.task-list,
.privacy-box ul {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.task-list li,
.privacy-box li {
  display: flex;
  gap: 10px;
  padding: 12px;
  background: var(--tint);
  border-radius: 8px;
  font-weight: 700;
}

.task-list span {
  flex: 0 0 11px;
  width: 11px;
  height: 11px;
  margin-top: 8px;
  background: var(--warm);
  border-radius: 3px;
}

.section {
  padding-block: clamp(56px, 12vw, 104px);
  background: var(--surface);
}

.section-tint {
  background: var(--tint);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-heading p:not(.eyebrow),
.info-card p,
.feature-row p,
.audience-grid p,
.signup-copy p,
.privacy-box p,
.faq-list p,
.policy-content p {
  color: var(--muted);
}

.card-grid,
.steps,
.audience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.info-card,
.steps li,
.audience-grid div,
.privacy-box {
  padding: 20px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.feature-list {
  display: grid;
  gap: 8px;
  max-width: 940px;
}

.feature-row {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 20px 0;
  border-top: 1px solid rgba(16, 39, 42, 0.12);
}

.feature-row > span {
  color: var(--blue);
  font-weight: 900;
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps li {
  counter-increment: steps;
}

.steps li::before {
  display: block;
  margin-bottom: 22px;
  color: var(--blue);
  font-weight: 900;
  content: "0" counter(steps);
}

.steps strong,
.steps span {
  display: block;
}

.steps span {
  margin-top: 8px;
  color: var(--muted);
}

.signup-section {
  background: #0f454d;
  color: #fff;
}

.signup-section .eyebrow,
.signup-section p {
  color: #d8efed;
}

.signup-copy {
  max-width: 860px;
}

.signup-section .button-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.38);
}

.privacy-box {
  max-width: 920px;
  background: #f8fcfc;
}

.privacy-box li::before {
  color: var(--accent);
  font-weight: 900;
  content: "✓";
}

.faq-list {
  display: grid;
  gap: 10px;
  max-width: 920px;
}

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

.faq-list summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 800;
}

.faq-list p {
  margin: 0;
  padding: 0 20px 18px;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 18px;
  padding-block: 26px;
  color: var(--muted);
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.site-footer strong {
  color: var(--ink);
}

.site-footer p {
  margin: 4px 0 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.site-footer a {
  color: var(--accent-dark);
  font-weight: 800;
}

.policy-page {
  background: var(--surface);
}

.policy-hero {
  max-width: 880px;
  padding-block: clamp(48px, 10vw, 84px);
}

.policy-content {
  max-width: 860px;
  padding-bottom: 84px;
}

.policy-content h2 {
  margin-top: 34px;
  font-size: 1.25rem;
}

@media (min-width: 720px) {
  .site-header {
    align-items: center;
    flex-direction: row;
    justify-content: space-between;
  }

  .site-nav {
    width: auto;
  }

  .hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.8fr);
    align-items: center;
    min-height: calc(100vh - 64px);
  }

  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .card-grid,
  .steps,
  .audience-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .site-footer {
    align-items: center;
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: 2.18rem;
  }

  .brand {
    align-items: flex-start;
  }

  .button {
    width: 100%;
  }

  .feature-row {
    grid-template-columns: 1fr;
  }
}