:root {
  --bg: #f6f8ff;
  --surface: #ffffff;
  --ink: #1f2a44;
  --muted: #5d6780;
  --blue: #2444bc;
  --blue-dark: #1a3373;
  --blue-soft: #d7e0ff;
  --blue-pale: #eef2ff;
  --red: #cc0000;
  --border: #dfe5f7;
  --shadow: 0 18px 50px rgba(26, 51, 115, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 Arial, Helvetica, sans-serif;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  background: var(--blue-pale);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.92em;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.header-inner {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--blue-dark);
  font-weight: 700;
  font-size: 18px;
}

.brand img {
  border-radius: 10px;
  display: block;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
}

.nav a {
  color: var(--ink);
}

.nav a:hover {
  color: var(--blue);
}

.hero {
  padding: 34px 0 10px;
}

.hero-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-copy {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 34px;
  padding: 34px 6px 8px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: Georgia, "Times New Roman", serif;
  color: var(--blue-dark);
  line-height: 1.15;
}

h1 {
  font-size: clamp(32px, 5vw, 52px);
  margin: 0 0 14px;
  letter-spacing: -0.6px;
}

h2 {
  font-size: clamp(25px, 3.4vw, 36px);
  margin: 0 0 18px;
}

h3 {
  font-size: 20px;
  margin: 0 0 8px;
}

.lead {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: 0 0 auto;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
}

.button:hover {
  text-decoration: none;
}

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

.button.primary:hover {
  background: #12264f;
}

.button.secondary {
  background: var(--surface);
  border-color: var(--border);
  color: var(--blue-dark);
}

.button.secondary:hover {
  border-color: var(--blue-soft);
  background: var(--blue-pale);
}

.button.disabled {
  background: var(--blue-pale);
  border-color: var(--border);
  color: var(--muted);
  cursor: default;
}

.section {
  padding: 54px 0 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 8px 24px rgba(26, 51, 115, 0.05);
}

.card p {
  margin: 0;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 34px;
  align-items: center;
}

.muted {
  color: var(--muted);
}

.checklist {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  position: relative;
  padding-left: 26px;
  margin: 9px 0;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--blue-soft);
  border: 3px solid var(--blue);
  box-sizing: border-box;
}

.shot {
  margin: 0;
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.shot figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}

.install-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.install-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.install-card .button {
  margin-top: auto;
}

.note {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.privacy-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: var(--blue-soft);
  border-radius: 22px;
  padding: 28px;
}

.privacy-banner h2 {
  margin-bottom: 6px;
}

.privacy-banner p {
  margin: 0;
  max-width: 760px;
  color: #33436e;
}

.site-footer {
  margin-top: 64px;
  padding: 24px 0 34px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.policy {
  max-width: 880px;
  padding-top: 46px;
  padding-bottom: 20px;
}

.policy h1 {
  font-size: clamp(30px, 5vw, 44px);
}

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

.policy h3 {
  margin-top: 24px;
  font-size: 18px;
}

.policy p,
.policy li {
  color: #33405c;
}

.policy hr {
  margin: 44px 0;
  border: 0;
  border-top: 1px solid var(--border);
}

@media (max-width: 900px) {
  .hero-copy,
  .privacy-banner {
    align-items: flex-start;
    flex-direction: column;
  }

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

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

@media (max-width: 620px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav {
    gap: 12px;
  }

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

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}