:root {
  --bg: #ffffff;
  --text: #202124;
  --muted: #6f6f73;
  --soft: #f6f6f6;
  --line: #ececec;
  --accent: #ef4644;
  --accent-dark: #df3a38;
  --radius: 28px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.site-header,
.hero,
.features,
.simple-section,
.final-cta,
.site-footer,
.policy-page {
  width: min(var(--max-width), calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand,
.nav,
.site-footer nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.nav {
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.nav a:hover,
.site-footer a:hover {
  color: var(--text);
}

.download-link {
  color: var(--text);
}

.hero {
  min-height: calc(100vh - 78px);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 1fr);
  align-items: center;
  gap: 54px;
  padding: 64px 0 74px;
}

.hero-copy {
  max-width: 560px;
}

.hero-icon {
  width: 128px;
  height: 128px;
  border-radius: 30px;
  margin-bottom: 30px;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(54px, 8vw, 94px);
  line-height: 0.95;
  letter-spacing: -0.055em;
}

h1 span,
.kicker {
  color: var(--accent);
}

.hero-copy p {
  max-width: 500px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 24px;
  border-radius: 999px;
  background: var(--text);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease;
}

.primary-button:hover {
  background: #000;
  transform: translateY(-1px);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  min-height: 720px;
  overflow: hidden;
}

.hero-visual::before {
  content: "";
  position: absolute;
  bottom: 4%;
  width: min(520px, 82vw);
  height: min(520px, 82vw);
  border-radius: 999px;
  background: radial-gradient(circle, rgba(239, 70, 68, 0.10), rgba(239, 70, 68, 0) 68%);
}

.hero-visual img {
  position: relative;
  z-index: 1;
  width: min(440px, 90%);
  filter: drop-shadow(0 28px 46px rgba(0, 0, 0, 0.12));
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  padding: 16px 0 54px;
}

.feature {
  min-height: 210px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.feature-mark {
  display: inline-flex;
  margin-bottom: 38px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.feature h2 {
  margin-bottom: 10px;
  font-size: 24px;
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.feature p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.simple-section {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 50px;
  align-items: end;
  padding: 98px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.kicker {
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.simple-section h2,
.final-cta h2 {
  margin-bottom: 0;
  font-size: clamp(38px, 6vw, 74px);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.simple-section > p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 22px;
  line-height: 1.48;
  letter-spacing: -0.02em;
}

.final-cta {
  padding: 92px 0 82px;
  text-align: center;
}

.final-cta img {
  width: 76px;
  height: 76px;
  margin: 0 auto 24px;
  border-radius: 18px;
}

.final-cta h2 {
  max-width: 720px;
  margin: 0 auto 26px;
}

.site-footer {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  gap: 18px;
  flex-wrap: wrap;
}

.policy-page {
  max-width: 760px;
  padding: 72px 0 90px;
}

.policy-page h1 {
  font-size: clamp(42px, 7vw, 72px);
  margin-bottom: 22px;
}

.policy-page h2 {
  margin: 34px 0 10px;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.policy-page p,
.policy-page li {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.65;
}

.policy-page ul {
  padding-left: 22px;
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 34px;
    padding-top: 44px;
    text-align: center;
  }

  .hero-copy {
    margin-inline: auto;
  }

  .hero-icon {
    margin-inline: auto;
  }

  .hero-copy p {
    margin-inline: auto;
  }

  .hero-visual {
    min-height: 560px;
  }

  .hero-visual img {
    width: min(380px, 86%);
  }

  .features,
  .simple-section {
    grid-template-columns: 1fr;
  }

  .simple-section {
    gap: 20px;
    padding: 70px 0;
    text-align: center;
  }
}

@media (max-width: 560px) {
  .site-header,
  .hero,
  .features,
  .simple-section,
  .final-cta,
  .site-footer,
  .policy-page {
    width: min(100% - 28px, var(--max-width));
  }

  .site-header {
    height: 70px;
  }

  .nav a:first-child {
    display: none;
  }

  .hero {
    padding-top: 30px;
    padding-bottom: 46px;
  }

  .hero-icon {
    width: 104px;
    height: 104px;
    border-radius: 24px;
  }

  h1 {
    font-size: clamp(48px, 15vw, 64px);
  }

  .hero-copy p,
  .simple-section > p {
    font-size: 18px;
  }

  .primary-button {
    width: 100%;
  }

  .hero-visual {
    min-height: 480px;
  }

  .features {
    padding-bottom: 36px;
  }

  .feature {
    min-height: auto;
  }

  .feature-mark {
    margin-bottom: 28px;
  }

  .final-cta {
    padding: 72px 0;
  }

  .site-footer {
    min-height: 110px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }
}