:root {
  --ink: #081446;
  --blue: #0d577d;
  --blue-deep: #084061;
  --aqua: #58e4e6;
  --orange: #c86417;
  --paper: #ffffff;
  --mist: #f4f8f9;
  --line: #d7e4e8;
  --text: #26343c;
  --muted: #61727b;
  --shadow: 0 18px 50px rgba(8, 64, 97, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

a {
  color: var(--blue);
}

img {
  max-width: 100%;
  display: block;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 168px;
  min-width: 142px;
  text-decoration: none;
}

.brand img {
  width: 100%;
  height: auto;
}

.nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: 15px;
}

.nav-links a {
  color: var(--blue-deep);
  text-decoration: none;
  font-weight: 650;
}

.section {
  padding: 78px 0;
}

.band {
  background: var(--mist);
  border-block: 1px solid var(--line);
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: center;
  padding: 64px 0 38px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.7fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  color: var(--orange);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 16px;
}

h1,
h2,
h3 {
  color: var(--blue-deep);
  line-height: 1.12;
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(42px, 7vw, 78px);
  max-width: 780px;
}

.landing-title {
  font-size: clamp(40px, 5.2vw, 62px);
}

.about-title {
  font-size: clamp(42px, 5.5vw, 64px);
  max-width: none;
}

.about-title span {
  display: block;
}

.about-title span:first-child {
  white-space: nowrap;
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
}

h3 {
  font-size: 22px;
}

.form-heading {
  font-size: 24px;
  margin-top: 0;
}

.card-heading {
  font-size: 32px;
}

.lead {
  font-size: clamp(19px, 2vw, 23px);
  color: #33444d;
  max-width: 700px;
  margin: 24px 0 0;
}

.copy {
  max-width: 740px;
}

.actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: var(--radius);
  font-weight: 800;
  text-decoration: none;
  border: 2px solid transparent;
  font: inherit;
  cursor: pointer;
}

.button {
  background: var(--blue-deep);
  color: #fff;
}

.button:hover {
  background: var(--ink);
}

.button-secondary {
  color: var(--blue-deep);
  border-color: var(--blue-deep);
  background: #fff;
}

.button-secondary:hover {
  background: #eef7f8;
}

.guide-cover {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: #fff;
  padding: 10px;
  overflow: hidden;
}

.guide-cover img {
  border-radius: 4px;
  clip-path: inset(2px 0 0 0);
}

.guide-chart {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: #fff;
  padding: 8px;
  overflow: hidden;
}

.guide-chart img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.optin-cover {
  width: min(100%, 360px);
  margin: 0 auto 16px;
}

.feature-grid,
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.product-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background: #fff;
}

.card p,
.policy p,
.policy li {
  color: var(--muted);
}

.card p:last-child,
.policy p:last-child {
  margin-bottom: 0;
}

.optin-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.72fr);
  gap: 52px;
  align-items: start;
}

.form-box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  background: #fff;
  box-shadow: var(--shadow);
}

.form-box label {
  display: block;
  color: var(--blue-deep);
  font-weight: 750;
  margin-bottom: 5px;
}

.form-box input {
  width: 100%;
  min-height: 42px;
  border: 1px solid #b9cbd1;
  border-radius: var(--radius);
  padding: 10px 12px;
  margin-bottom: 12px;
  font: inherit;
}

.naviluma-kit-form {
  margin-top: 14px;
}

.naviluma-kit-form .formkit-alert {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
}

.naviluma-kit-form .formkit-alert:empty {
  display: none;
}

.naviluma-kit-form .formkit-alert-error {
  color: #9f2c0d;
  font-size: 14px;
}

.naviluma-kit-form .formkit-alert-success {
  background: #e8fbf4;
  border: 1px solid #9cdac6;
  border-radius: var(--radius);
  color: #115b46;
  font-size: 15px;
  padding: 12px;
}

.signup-complete .form-note {
  display: none;
}

.naviluma-kit-form .formkit-powered-by-convertkit-container {
  margin-top: 10px;
  text-align: center;
}

.naviluma-kit-form .formkit-powered-by-convertkit {
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
}

.form-box input:focus {
  outline: 3px solid rgba(88, 228, 230, 0.35);
  border-color: var(--blue);
}

.form-note,
.fine-print {
  font-size: 14px;
  color: var(--muted);
}

.form-note {
  margin: 10px 0 0;
}

.fine-print {
  margin-top: 12px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
}

.check-list li {
  border-top: 1px solid var(--line);
  padding: 14px 0;
}

.check-list li::before {
  content: "";
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--aqua);
  margin-right: 10px;
  vertical-align: 1px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.why-section {
  align-items: center;
}

.about-detail {
  align-items: start;
}

.about-detail p:first-child {
  margin-top: 0;
}

.why-copy {
  padding-top: 34px;
}

.product-card {
  display: flex;
  flex-direction: column;
}

.product-card .card-heading {
  min-height: 72px;
}

.product-card .actions {
  margin-top: auto;
  padding-top: 24px;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 34px 0;
  color: var(--muted);
  font-size: 14px;
}

.footer-inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer a {
  color: var(--muted);
  margin-left: 14px;
}

.page-hero {
  padding: 50px 0 42px;
  background: linear-gradient(180deg, #fff 0%, #f7fbfb 100%);
  border-bottom: 1px solid var(--line);
}

.policy {
  max-width: 840px;
}

.policy h2 {
  font-size: 28px;
  margin-top: 38px;
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 16px 0;
  }

  .nav-links {
    justify-content: flex-start;
    gap: 14px;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid,
  .optin-panel,
  .split,
  .feature-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .why-copy {
    padding-top: 0;
  }

  .product-card .card-heading {
    min-height: auto;
  }

  .section {
    padding: 56px 0;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 16px;
  }

  .landing-title {
    font-size: clamp(32px, 8.7vw, 36px);
  }

  .about-title span:first-child {
    white-space: normal;
  }

  .brand {
    width: 150px;
  }

  .nav-links {
    font-size: 14px;
  }

  .button,
  .button-secondary {
    width: 100%;
  }
}