:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-strong: #101828;
  --text: #182230;
  --muted: #667085;
  --line: #d9e0ea;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --accent-soft: #ccfbf1;
  --warning: #fff7ed;
  --warning-line: #fed7aa;
  --shadow: 0 16px 40px rgba(16, 24, 40, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 16px clamp(20px, 5vw, 64px);
  background: rgba(247, 248, 251, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: #ffffff;
  background: var(--accent);
  border-radius: 8px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  padding: 8px 12px;
  color: var(--muted);
  font-weight: 650;
  text-decoration: none;
  border-radius: 8px;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
  background: #eef2f6;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(56px, 8vw, 112px) clamp(20px, 5vw, 64px);
}

.hero-content {
  max-width: 820px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin: 0;
  max-width: 920px;
  font-size: clamp(2.4rem, 6vw, 4.9rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.lead {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.1rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

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

.button.primary:hover {
  background: var(--accent-dark);
}

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

.button.disabled {
  color: var(--muted);
  background: #eef2f6;
  cursor: not-allowed;
}

.hero-panel,
.card,
.download-card,
.form-card,
.price-card,
details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-panel {
  display: grid;
  gap: 14px;
  padding: 22px;
}

.panel-row {
  display: grid;
  gap: 4px;
  padding: 16px;
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.panel-row span {
  color: var(--muted);
  font-size: 0.88rem;
}

.panel-row strong {
  font-size: 0.95rem;
}

.page {
  min-height: calc(100vh - 144px);
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(48px, 7vw, 88px) 0;
}

.section.narrow {
  width: min(820px, calc(100% - 40px));
}

.section-heading {
  max-width: 780px;
  margin-bottom: 28px;
}

.feature-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card,
.price-card {
  padding: 22px;
}

.download-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin-top: 28px;
  padding: 24px;
}

.check-list {
  margin: 16px 0 0;
  padding-left: 20px;
}

.form-card {
  display: grid;
  gap: 10px;
  margin-top: 28px;
  padding: 24px;
}

label {
  font-weight: 750;
}

input {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--text);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

.notice {
  margin: 0 0 14px;
  padding: 14px 16px;
  background: var(--warning);
  border: 1px solid var(--warning-line);
  border-radius: 8px;
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--accent-dark);
  font-weight: 700;
}

.price-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.price-card.featured {
  border-color: var(--accent);
}

.price {
  margin: 0;
  font-size: 2rem;
  font-weight: 900;
}

.price-card .button {
  margin-top: auto;
}

.steps {
  display: grid;
  gap: 12px;
  margin: 28px 0;
  padding-left: 24px;
}

.faq-list {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

details {
  padding: 18px 20px;
}

summary {
  cursor: pointer;
  font-weight: 850;
}

details p {
  margin-bottom: 0;
  color: var(--muted);
}

.legal h2 {
  margin-top: 30px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(20px, 5vw, 64px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer nav {
  display: flex;
  gap: 16px;
}

.site-footer a {
  text-decoration: none;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .feature-grid,
  .pricing-grid,
  .download-card {
    grid-template-columns: 1fr;
  }

  .download-card .button {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .actions,
  .actions .button {
    width: 100%;
  }

  h1 {
    font-size: 2.25rem;
  }
}