:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --ink: #182033;
  --muted: #667085;
  --faint: #d7dee9;
  --accent: #4f6df5;
  --accent-dark: #304dc8;
  --gold: #c4922d;
  --danger: #d64545;
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

a {
  color: inherit;
}

.site-header {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 20px;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}

nav a {
  text-decoration: none;
}

.hero {
  width: min(1120px, calc(100% - 32px));
  min-height: 620px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  align-items: center;
  gap: 56px;
}

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

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(54px, 9vw, 96px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: 34px;
  line-height: 1.1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.lead {
  max-width: 640px;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.55;
}

.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: 0 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 750;
}

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

.button.secondary {
  color: var(--accent-dark);
  background: #e8edff;
}

.phone-preview {
  border-radius: 28px;
  background: #eef3fb;
  border: 1px solid #dbe4f2;
  padding: 24px;
  box-shadow: 0 24px 60px rgba(42, 56, 86, 0.16);
}

.phone-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
  color: var(--muted);
  font-weight: 700;
}

.sudoku-board {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  aspect-ratio: 1;
  background: #ffffff;
  border: 3px solid var(--ink);
  border-radius: 10px;
  overflow: hidden;
}

.sudoku-board span {
  display: grid;
  place-items: center;
  min-width: 0;
  border-right: 1px solid #c8d0de;
  border-bottom: 1px solid #c8d0de;
  color: var(--accent-dark);
  font-size: 18px;
  font-weight: 750;
}

.sudoku-board span:nth-child(3n) {
  border-right-color: var(--ink);
  border-right-width: 2px;
}

.sudoku-board span:nth-child(n+19):nth-child(-n+27),
.sudoku-board span:nth-child(n+46):nth-child(-n+54) {
  border-bottom-color: var(--ink);
  border-bottom-width: 2px;
}

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto 28px;
  padding: 64px 0;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 26px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-grid article,
.policy-card,
.support {
  background: var(--card);
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 24px;
}

.feature-grid p,
.policy-card p,
.support p {
  color: var(--muted);
  line-height: 1.65;
}

.language-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  align-items: center;
  gap: 24px;
  background: #eaf0ff;
  border: 1px solid #d6e0ff;
  border-radius: 8px;
  padding: 34px;
}

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

.language-list span {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid #d6e0ff;
  border-radius: 8px;
  padding: 12px 14px;
  font-weight: 700;
}

.policy {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
}

.policy-hero {
  padding: 76px 0 34px;
}

.policy-hero h1 {
  font-size: clamp(46px, 8vw, 76px);
}

.policy-card {
  margin-bottom: 14px;
}

.policy-card a,
.support a {
  color: var(--accent-dark);
  font-weight: 700;
}

footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 42px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}

footer a {
  text-decoration: none;
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 34px 0 54px;
  }

  .phone-preview {
    max-width: 420px;
  }

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

  .section {
    padding: 42px 0;
  }
}