.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

section {
  padding-block: var(--space-5);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.5rem);
  text-align: center;
  margin-block-end: var(--space-2);
}

.section-subtitle {
  text-align: center;
  color: var(--ink-muted);
  max-width: 34rem;
  margin-inline: auto;
  margin-block-end: var(--space-4);
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 40;
  background: rgba(250, 248, 243, 0.9);
  backdrop-filter: blur(8px);
  border-block-end: 1px solid var(--line);
}

.header-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-block: var(--space-1);
}

.main-nav {
  margin-inline-start: auto;
}

.main-nav ul {
  display: flex;
  gap: var(--space-3);
}

/* ---------- hero ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: var(--space-5);
  padding-block-start: var(--space-5);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.5rem + 2.2vw, 3.25rem);
  margin-block-end: var(--space-2);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--ink-muted);
  max-width: 34rem;
  margin-block-end: var(--space-3);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

/* ---------- stat strip ---------- */

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  padding-block: var(--space-3);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.25rem;
}

.stat-num {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  color: var(--navy-900);
}

.stat-label {
  color: var(--ink-muted);
  font-size: 0.95rem;
}

/* ---------- feature grid ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

/* ---------- how it works ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  counter-reset: step;
}

.step {
  text-align: center;
  padding-inline: var(--space-1);
}

/* ---------- theme grid ---------- */

.theme-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-2);
}

/* ---------- footer ---------- */

.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-block: var(--space-3);
}

.footer-links {
  display: flex;
  gap: var(--space-2);
}

.footer-copyright {
  width: 100%;
  text-align: center;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-subtitle {
    margin-inline: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .theme-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .main-nav {
    position: fixed;
    inset: 4.2rem 1rem auto 1rem;
    background: var(--cream-50);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: var(--space-2);
    transform: translateY(-1rem);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  .main-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .main-nav ul {
    flex-direction: column;
    gap: var(--space-1);
  }
  .header-row .btn--small {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .theme-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-row {
    justify-content: center;
    text-align: center;
  }
}