:root {
  color-scheme: light;
  --ink: #15202b;
  --muted: #596978;
  --line: #d9e1e8;
  --page: #f7fafc;
  --surface: #ffffff;
  --blue: #1976d2;
  --blue-dark: #0d47a1;
  --green: #138a58;
  --amber: #b85c00;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a:hover {
  text-decoration: underline;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 750;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.95rem;
  font-weight: 650;
}

.hero,
.support-hero,
.section,
footer {
  max-width: 1120px;
  margin: 0 auto;
  padding-inline: 24px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.85fr);
  gap: 44px;
  align-items: center;
  min-height: calc(100svh - 74px);
  padding-block: 48px 72px;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(3.4rem, 10vw, 7rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.12rem;
  letter-spacing: 0;
}

.hero-copy p:not(.eyebrow),
.support-hero p,
.split p {
  color: var(--muted);
  font-size: 1.18rem;
  line-height: 1.6;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 750;
}

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

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

.button.secondary {
  color: var(--ink);
  background: var(--surface);
}

.phone-preview {
  position: relative;
  width: min(100%, 390px);
  min-height: 590px;
  margin-inline: auto;
  padding: 58px 22px 22px;
  border: 1px solid #cad5df;
  border-radius: 42px;
  background:
    linear-gradient(180deg, rgba(25, 118, 210, 0.12), rgba(19, 138, 88, 0.08)),
    var(--surface);
  box-shadow: 0 28px 70px rgba(21, 32, 43, 0.16);
}

.phone-bar {
  position: absolute;
  top: 20px;
  left: 50%;
  width: 96px;
  height: 6px;
  border-radius: 999px;
  background: #a9b6c2;
  transform: translateX(-50%);
}

.preview-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
}

.preview-card span,
.preview-card small {
  color: var(--muted);
  font-weight: 650;
}

.preview-card strong {
  font-size: 1.8rem;
  font-variant-numeric: tabular-nums;
}

.preview-card.total {
  display: block;
  padding: 24px 18px;
  background: #ffffff;
}

.preview-card.total strong {
  display: block;
  margin: 10px 0 4px;
  color: var(--blue);
  font-size: 4rem;
  line-height: 1;
}

.section {
  padding-block: 74px;
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 24px;
}

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

.feature-grid article,
.support-grid article {
  min-height: 180px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

article p {
  color: var(--muted);
  line-height: 1.58;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: start;
}

.support-hero {
  padding-block: 72px 42px;
}

.support-hero h1 {
  max-width: 780px;
  font-size: clamp(3rem, 8vw, 5.4rem);
}

.support-hero p {
  max-width: 760px;
}

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

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

.answer-grid div,
.faq details {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.answer-grid dt {
  margin-bottom: 8px;
  font-weight: 800;
}

.answer-grid dd {
  margin: 0;
  color: var(--muted);
  line-height: 1.58;
}

.faq {
  display: grid;
  gap: 12px;
}

.faq details {
  padding-block: 18px;
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.faq details p {
  margin: 12px 0 0;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-block: 28px 42px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 800px) {
  .site-header {
    align-items: flex-start;
  }

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

  .hero {
    min-height: auto;
    padding-top: 32px;
  }

  .phone-preview {
    min-height: 480px;
  }

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

@media (max-width: 520px) {
  .site-header {
    padding-inline: 18px;
  }

  nav {
    gap: 12px;
    font-size: 0.9rem;
  }

  .hero,
  .support-hero,
  .section,
  footer {
    padding-inline: 18px;
  }

  .hero-actions,
  footer {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .preview-card.total strong {
    font-size: 3.2rem;
  }
}