:root {
  --im1-black: #0d0d0f;
  --im1-red: #e31c23;
  --im1-red-dark: #b91419;
  --im1-charcoal: #1a1d21;
  --im1-slate: #475569;
  --im1-light: #f4f5f7;
  --im1-white: #ffffff;
  --im1-border: #e2e8f0;
  --im1-border-strong: #cbd5e1;
  --im1-success: #15803d;
  --shadow-soft: 0 18px 55px rgba(15, 23, 42, 0.12);
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--im1-black);
  background: var(--im1-light);
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(13, 13, 15, 0.96) 0%, rgba(26, 29, 33, 0.96) 760px, var(--im1-light) 760px),
    var(--im1-light);
}

a {
  color: inherit;
}

.site-header,
.hero,
.content-section,
.site-footer {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--im1-white);
}

.brand-logo {
  width: 58px;
  height: 58px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--im1-black);
}

.brand-text {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0;
}

.hero {
  display: grid;
  min-height: 560px;
  align-items: center;
  padding: 56px 0 72px;
}

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

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--im1-red);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 18px;
  color: var(--im1-white);
  font-size: clamp(38px, 8vw, 72px);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero-copy,
.trust-copy {
  max-width: 650px;
  font-size: 18px;
  line-height: 1.6;
}

.hero-copy {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.88);
}

.trust-copy {
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.72);
}

.download-panel {
  width: min(100%, 650px);
  padding: 22px;
  border: 1px solid var(--im1-border);
  border-radius: var(--radius);
  background: var(--im1-white);
  box-shadow: var(--shadow-soft);
}

.download-button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 24px;
  border-radius: 6px;
  background: var(--im1-red);
  color: var(--im1-white);
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
  transition: background 160ms ease, transform 160ms ease;
}

.download-button:hover {
  background: var(--im1-red-dark);
  transform: translateY(-1px);
}

.download-button:focus-visible {
  outline: 3px solid rgba(227, 28, 35, 0.28);
  outline-offset: 3px;
}

.download-button.is-downloading {
  background: var(--im1-success);
}

.download-icon,
.download-icon svg {
  width: 20px;
  height: 20px;
}

.download-icon svg {
  display: block;
  fill: currentColor;
}

.future-downloads {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  color: var(--im1-slate);
  font-size: 14px;
}

.future-downloads strong {
  margin-left: 4px;
  color: var(--im1-charcoal);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.content-section {
  display: grid;
  grid-template-columns: minmax(180px, 280px) minmax(0, 1fr);
  gap: 40px;
  padding: 52px 0;
  border-top: 1px solid var(--im1-border);
}

.content-section h2 {
  margin-bottom: 0;
  font-size: 30px;
  line-height: 1.15;
  letter-spacing: 0;
}

.steps,
.security-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li,
.security-list li {
  display: flex;
  min-height: 58px;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--im1-border);
  border-radius: var(--radius);
  background: var(--im1-white);
  color: var(--im1-charcoal);
  font-size: 16px;
  line-height: 1.45;
}

.step-number {
  display: inline-grid;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  place-items: center;
  border-radius: 999px;
  background: var(--im1-black);
  color: var(--im1-white);
  font-size: 13px;
  font-weight: 800;
}

.security-list li::before {
  content: "";
  width: 9px;
  height: 9px;
  flex: 0 0 9px;
  border-radius: 999px;
  background: var(--im1-red);
}

.site-footer {
  padding: 28px 0 40px;
  border-top: 1px solid var(--im1-border-strong);
  color: var(--im1-slate);
  font-size: 14px;
}

@media (max-width: 760px) {
  .site-header,
  .hero,
  .content-section,
  .site-footer {
    width: min(100% - 28px, 1120px);
  }

  body {
    background:
      linear-gradient(180deg, rgba(13, 13, 15, 0.96) 0%, rgba(26, 29, 33, 0.96) 620px, var(--im1-light) 620px),
      var(--im1-light);
  }

  .site-header {
    padding: 18px 0;
  }

  .brand-logo {
    width: 48px;
    height: 48px;
  }

  .hero {
    min-height: auto;
    padding: 42px 0 56px;
  }

  h1 {
    font-size: 42px;
  }

  .hero-copy,
  .trust-copy {
    font-size: 16px;
  }

  .download-panel {
    padding: 18px;
  }

  .download-button {
    width: 100%;
  }

  .content-section {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 40px 0;
  }

  .steps li,
  .security-list li {
    align-items: flex-start;
  }
}