:root {
  --bg: #f7f7fb;
  --surface: #ffffff;
  --surface-2: #f0f1f6;
  --line: #e3e5ee;
  --ink: #12141c;
  --muted: #5d6478;
  --accent: #4f46e5;
  --accent-2: #0ea5e9;
  --accent-ink: #ffffff;
  --shadow: 0 30px 80px -30px rgb(30 27 75 / 0.35);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0f15;
    --surface: #151821;
    --surface-2: #1c2030;
    --line: #262b3a;
    --ink: #eceef5;
    --muted: #9aa2b6;
    --accent: #8b85ff;
    --accent-2: #38bdf8;
    --accent-ink: #0d0f15;
    --shadow: 0 30px 80px -30px rgb(0 0 0 / 0.8);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 Inter, ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

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

code {
  font-size: 0.85em;
  background: var(--surface-2);
  border-radius: 6px;
  padding: 1px 6px;
}

.wrap {
  width: min(1160px, 100%);
  margin: 0 auto;
  padding: 0 20px;
}

/* nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top, 0px);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;

  &.small { font-size: 0.95rem; }
}

.nav nav {
  display: flex;
  gap: 22px;
  margin-left: 12px;

  a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.95rem;

    &:hover { color: var(--ink); }
  }
}

.nav-cta {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 16px;

  .link {
    color: var(--ink);
    text-decoration: none;
    font-size: 0.95rem;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  padding: 9px 16px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--surface);
  transition: transform 0.15s ease, background 0.15s ease;

  &:hover { transform: translateY(-1px); }

  &.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--accent-ink);
  }

  &.ghost { background: transparent; }

  &.big {
    padding: 14px 24px;
    font-size: 1.05rem;
    border-radius: 12px;
  }
}

/* hero */
.hero {
  padding: 88px 0 40px;
  text-align: center;
  background:
    radial-gradient(900px 420px at 15% -5%, color-mix(in srgb, var(--accent) 18%, transparent), transparent),
    radial-gradient(800px 380px at 90% 0%, color-mix(in srgb, var(--accent-2) 14%, transparent), transparent);
}

.eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding: 4px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin: 0 auto;
  max-width: 14ch;
}

.accent {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  max-width: 640px;
  margin: 24px auto 0;
  font-size: 1.2rem;
  color: var(--muted);
}

.cta {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 32px 0 56px;
}

.shot {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--surface);
}

.hero-shot {
  max-width: 1100px;
  margin: 0 auto;
}

/* sections */
.section {
  padding: 96px 0;

  &.alt { background: var(--surface); border-block: 1px solid var(--line); }

  h2 {
    font-size: clamp(1.8rem, 3.6vw, 2.6rem);
    letter-spacing: -0.025em;
    line-height: 1.15;
    margin: 0 0 12px;
  }
}

.section-lede {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 40px;
  max-width: 640px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;

  &.three { margin-top: 32px; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;

  h3 { margin: 10px 0 8px; font-size: 1.1rem; }

  p { margin: 0; color: var(--muted); font-size: 0.98rem; }
}

.section.alt .card { background: var(--bg); }

.icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 24px;
  align-items: end;
  margin-top: 56px;

  .phone { border-radius: 28px; }
}

.pills {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;

  li {
    padding: 18px 20px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--muted);
    font-size: 0.98rem;
  }

  strong { display: block; color: var(--ink); margin-bottom: 4px; }
}

.two-col {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;

  &.reverse { grid-template-columns: 1.2fr 1fr; }
}

.checks {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;

  li {
    position: relative;
    padding-left: 30px;
    color: var(--muted);

    &::before {
      content: '✓';
      position: absolute;
      left: 0;
      top: 0;
      color: var(--accent);
      font-weight: 700;
    }
  }

  strong { color: var(--ink); }
}

.chat {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.bubble {
  max-width: 88%;
  padding: 12px 16px;
  border-radius: 16px 16px 16px 4px;
  background: var(--surface-2);
  font-size: 0.97rem;

  &.me {
    align-self: flex-end;
    border-radius: 16px 16px 4px 16px;
    background: var(--accent);
    color: var(--accent-ink);
  }
}

.final {
  text-align: center;

  .section-lede { margin: 0 auto 28px; }
}

.footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 calc(28px + env(safe-area-inset-bottom, 0px));
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;

  nav { display: flex; gap: 18px; }

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

  .muted { margin-left: auto; color: var(--muted); }
}

.small { font-size: 0.88rem; }
.muted { color: var(--muted); }
.center { text-align: center; }

.duo {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 24px;
  align-items: start;
  margin-top: 56px;
}

.phones {
  display: flex;
  justify-content: center;
  gap: 18px;

  .phone {
    width: min(260px, 45%);
    border-radius: 28px;
    overflow: hidden;
  }
  .tilt {
    transform: rotate(3deg) translateY(28px);
  }
}

.chat.group .who {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  opacity: 0.8;
  margin-bottom: 2px;
}

.plans {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: stretch;
}

.plan {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 28px 26px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);

  h3 { margin: 0; font-size: 1.15rem; }
  .price { margin: 6px 0 0; font-size: 2.4rem; font-weight: 800; letter-spacing: -0.02em; }
  .price span { font-size: 1rem; font-weight: 500; color: var(--muted); }
  p.small { margin: 0 0 6px; }
  .checks { margin: 12px 0 22px; flex: 1; }
  .btn { align-self: flex-start; }

  &.featured {
    border: 2px solid var(--accent);
    box-shadow: var(--shadow);
  }
}

.downloads {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.dl {
  display: grid;
  gap: 2px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;

  span { color: var(--muted); font-size: 0.9rem; }
  &:hover { border-color: var(--accent); transform: translateY(-2px); }
  &.soon { border-style: dashed; }
}

@media (max-width: 1160px) {
  .plans { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .nav nav { display: none; }

  .two-col,
  .two-col.reverse { grid-template-columns: 1fr; gap: 32px; }

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

  .split .phone { max-width: 280px; margin: 0 auto; }
  .duo { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .phones .tilt { transform: rotate(3deg) translateY(16px); }

  .hero { padding-top: 56px; }

  .section { padding: 64px 0; }
}

@media (max-width: 480px) {
  .nav-cta .link { display: none; }

  .lede { font-size: 1.05rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .btn { transition: none; }
}

kbd {
  font: 600 0.8em ui-monospace, SFMono-Regular, Menlo, monospace;
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--surface);
}

h3.sub {
  margin: 48px 0 6px;
  font-size: 1.3rem;
}