:root {
  color-scheme: light;
  --ink: #14242b;
  --muted: #5a6b73;
  --panel: #ffffff;
  --soft: #f4f8fa;
  --line: #d9e2e6;
  --accent: #0c7188;
  --accent-dark: #0b4e62;
  --ok: #dff1e8;
  --warn: #fff2cb;
  --danger: #ffe4e4;
}

* {
  box-sizing: border-box;
}

body {
  background: #eef4f6;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
  margin: 0;
}

a {
  color: inherit;
}

.site-header {
  align-items: center;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px clamp(18px, 5vw, 72px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  font-size: 20px;
  font-weight: 900;
  gap: 10px;
  text-decoration: none;
}

.brand img {
  height: 42px;
  width: 42px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

nav a {
  border-radius: 6px;
  color: #304650;
  font-size: 14px;
  font-weight: 800;
  padding: 9px 10px;
  text-decoration: none;
}

nav a:hover {
  background: var(--soft);
}

.hero {
  align-items: center;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  min-height: calc(100vh - 72px);
  padding: 42px clamp(18px, 5vw, 72px) 30px;
}

.hero-copy {
  max-width: 640px;
}

.eyebrow {
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  margin: 0 0 8px;
  text-transform: uppercase;
}

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

h1 {
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1;
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.08;
  margin-bottom: 14px;
}

h3 {
  font-size: 19px;
  margin-bottom: 8px;
}

.lead {
  color: #314650;
  font-size: 19px;
  max-width: 610px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.primary-link,
.secondary-link {
  align-items: center;
  border-radius: 6px;
  display: inline-flex;
  font-weight: 900;
  min-height: 46px;
  padding: 0 16px;
  text-decoration: none;
}

.primary-link {
  background: var(--accent-dark);
  color: white;
}

.secondary-link {
  border: 1px solid var(--accent-dark);
  color: var(--accent-dark);
}

.hero-image img {
  display: block;
  height: auto;
  width: 100%;
}

.section {
  padding: 64px clamp(18px, 5vw, 72px);
}

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

.feature-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 24px;
}

.feature-grid article,
.page-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.feature-icon {
  align-items: center;
  background: #dceff3;
  border-radius: 6px;
  color: var(--accent-dark);
  display: inline-flex;
  font-size: 13px;
  font-weight: 900;
  height: 32px;
  justify-content: center;
  margin-bottom: 14px;
  width: 42px;
}

.feature-grid p,
.screenshot-card p,
.split-section p,
.secure-band p,
.page-panel p,
.page-panel li {
  color: var(--muted);
}

.split-section {
  align-items: center;
  background: #ffffff;
  display: grid;
  gap: 36px;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
}

pre {
  background: #10242b;
  border-radius: 8px;
  color: #d9f8ff;
  font-size: 13px;
  overflow-x: auto;
  padding: 14px;
  white-space: pre-wrap;
  word-break: break-word;
}

.phone-shot {
  background: #172a31;
  border: 10px solid #0b1519;
  border-radius: 28px;
  box-shadow: 0 24px 60px rgba(14, 37, 45, 0.2);
  color: white;
  min-height: 520px;
  padding: 22px;
}

.phone-header {
  font-size: 21px;
  font-weight: 900;
  margin-bottom: 16px;
}

.phone-row,
.phone-card {
  background: #f7fbfc;
  border-radius: 7px;
  color: #21343c;
  font-weight: 800;
  margin-bottom: 10px;
  padding: 13px;
}

.phone-row.active {
  background: #dff1e8;
  border: 1px solid #99cdb7;
}

.phone-card {
  display: grid;
  gap: 10px;
}

.phone-card button {
  background: var(--accent-dark);
  border: 0;
  border-radius: 6px;
  color: white;
  font: inherit;
  min-height: 42px;
}

.phone-card small {
  color: #315748;
}

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

.screenshot-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 26px;
}

.screenshot-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.screenshot-card-wide {
  grid-column: span 2;
}

.screenshot-card img {
  aspect-ratio: 16 / 10;
  background: #e8eff1;
  display: block;
  height: auto;
  object-fit: cover;
  object-position: top left;
  width: 100%;
}

.screenshot-card div {
  padding: 18px;
}

.screenshot-card h3 {
  margin-bottom: 6px;
}

.screenshot-card p {
  margin-bottom: 0;
}

.secure-band {
  background: #10242b;
  color: white;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 520px);
}

.secure-band .eyebrow,
.secure-band p {
  color: #c9e6ee;
}

.security-list {
  display: grid;
  gap: 10px;
}

.security-list p {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 7px;
  margin: 0;
  padding: 13px;
}

.content-page {
  padding: 44px clamp(18px, 5vw, 72px) 72px;
}

.page-panel {
  max-width: 880px;
}

.page-panel h1 {
  font-size: clamp(34px, 5vw, 56px);
}

.page-panel h2 {
  font-size: 23px;
  margin-top: 28px;
}

.updated {
  color: var(--muted);
  font-weight: 800;
}

.notice {
  background: var(--warn);
  border: 1px solid #e5c169;
  border-radius: 8px;
  color: #6a4c00;
  font-weight: 800;
  padding: 14px;
}

footer {
  align-items: center;
  background: #ffffff;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 14px;
  font-weight: 800;
  gap: 10px;
  justify-content: space-between;
  padding: 22px clamp(18px, 5vw, 72px);
}

@media (max-width: 980px) {
  .hero,
  .split-section,
  .secure-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

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

  .screenshot-card-wide {
    grid-column: span 1;
  }

  .phone-shot {
    border-radius: 18px;
    min-height: 430px;
  }
}