:root {
  --accent: #0787ff;
  --accent-dark: #0068c8;
  --text: #111318;
  --muted: #626a77;
  --line: #dfe4ec;
  --surface: #ffffff;
  --page: #f5f7fb;
  --panel: #eef3f8;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

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

.site-header {
  background: rgba(245, 247, 251, 0.92);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
}

.nav {
  align-items: center;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  align-items: center;
  color: var(--text);
  display: inline-flex;
  font-weight: 800;
  gap: 10px;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  align-items: center;
  border: 3px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  display: inline-flex;
  font-size: 0.78rem;
  height: 40px;
  justify-content: center;
  line-height: 1;
  width: 40px;
}

nav {
  display: flex;
  gap: 8px;
}

nav a {
  border-radius: 8px;
  color: var(--muted);
  font-weight: 700;
  padding: 8px 10px;
  text-decoration: none;
}

nav a:hover,
nav a[aria-current="page"] {
  background: #e9f4ff;
  color: var(--accent-dark);
}

.section {
  padding: 72px 0;
}

.section + .section {
  padding-top: 24px;
}

.eyebrow {
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 4.25rem);
  line-height: 1.02;
  margin: 0;
}

h2 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  line-height: 1.12;
  margin: 0 0 18px;
}

h3 {
  font-size: 1.05rem;
  margin: 0 0 8px;
}

p {
  margin: 0 0 18px;
}

.lead {
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  max-width: 680px;
}

.hero {
  background: linear-gradient(180deg, #ffffff 0%, #f5f7fb 100%);
  border-bottom: 1px solid var(--line);
}

.hero-stack {
  display: grid;
  gap: 34px;
  justify-items: start;
}

.hero-copy {
  max-width: 760px;
}

.hero .lead {
  margin-top: 22px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  align-items: center;
  border: 1px solid var(--accent);
  border-radius: 8px;
  display: inline-flex;
  font-weight: 700;
  gap: 8px;
  min-height: 44px;
  padding: 10px 16px;
  text-decoration: none;
}

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

.button.disabled {
  background: #e9edf3;
  border-color: #cbd3df;
  color: #5f6875;
  cursor: not-allowed;
}

.phone-preview {
  max-width: 300px;
  width: min(68vw, 300px);
}

.phone-preview img {
  aspect-ratio: 1284 / 2778;
  background: #eef1f7;
  border: 10px solid #101216;
  border-radius: 38px;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.2);
  height: auto;
  object-fit: contain;
  width: 100%;
}

.feature-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-grid article {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.feature-grid article p {
  color: var(--muted);
  margin: 0;
}

.screenshots {
  background: #ffffff;
  border-top: 1px solid var(--line);
  padding: 72px 0;
}

.section-heading {
  margin-bottom: 28px;
}

.screenshot-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(7, minmax(180px, 1fr));
  overflow-x: auto;
  padding-bottom: 10px;
  scroll-snap-type: x mandatory;
}

.screenshot-grid figure {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 0;
  padding: 10px;
  scroll-snap-align: start;
}

.screenshot-grid img {
  aspect-ratio: 1284 / 2778;
  border-radius: 6px;
  height: auto;
  object-fit: cover;
  width: 100%;
}

.content-page {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 48px auto 72px;
  padding: clamp(24px, 5vw, 56px);
  width: min(860px, calc(100% - 32px));
}

.content-page h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 12px;
}

.content-page h2 {
  font-size: 1.35rem;
  margin-top: 36px;
}

.meta,
.content-page .lead {
  color: var(--muted);
}

.support-box {
  background: #f4f9ff;
  border: 1px solid #cbe5ff;
  border-radius: 8px;
  margin: 28px 0;
  padding: 22px;
}

.email-link {
  font-size: 1.15rem;
  font-weight: 800;
}

dl {
  border-top: 1px solid var(--line);
  margin: 28px 0 0;
}

dl div {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 12px;
  grid-template-columns: 180px 1fr;
  padding: 16px 0;
}

dt {
  color: var(--muted);
  font-weight: 700;
}

dd {
  margin: 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0;
}

.footer-grid {
  align-items: start;
  display: flex;
  gap: 24px;
  justify-content: space-between;
}

.site-footer p {
  color: var(--muted);
  margin: 4px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.footer-links a {
  font-weight: 700;
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .phone-preview {
    max-width: 250px;
  }

  .screenshot-grid {
    grid-template-columns: repeat(7, minmax(160px, 58vw));
  }
}

@media (max-width: 700px) {
  .section {
    padding: 48px 0;
  }

  .button {
    justify-content: center;
    width: 100%;
  }

  .footer-grid,
  .footer-links {
    flex-direction: column;
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 14px 0;
  }

  nav {
    width: 100%;
  }

  nav a {
    flex: 1;
    text-align: center;
  }

  dl div {
    gap: 4px;
    grid-template-columns: 1fr;
  }
}