/* ==============================
   Homepage - Premium landing page
   ============================== */

/* ---- Hero ---- */
.hero {
  padding: var(--space-3xl) 0 var(--space-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-subtle);
  background:
    radial-gradient(ellipse at 50% -20%, rgba(var(--color-primary-rgb), 0.08) 0%, transparent 70%),
    var(--surface-1);
}

.hero__inner {
  max-width: 680px;
  margin-inline: auto;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.08);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.hero__title {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 520px;
  margin-inline: auto;
  line-height: 1.55;
  margin-bottom: var(--space-xl);
}

.hero__actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Buttons (shared) ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  opacity: 0.85;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(var(--color-primary-rgb), 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--border-default);
}

.btn--outline:hover {
  background: rgba(var(--color-primary-rgb), 0.06);
  border-color: var(--color-primary);
}

.btn--lg {
  padding: 14px 32px;
  font-size: var(--font-size-base);
}

.btn--sm {
  padding: 6px 16px;
  font-size: var(--font-size-xs);
}

/* ---- Features grid ---- */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.feature-item {
  text-align: center;
  padding: var(--space-xl);
}

.feature-item__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  background: rgba(var(--color-primary-rgb), 0.08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.feature-item__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.feature-item__desc {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  line-height: 1.6;
}

/* ---- Section headers ---- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-header__title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
}

.section-header__desc {
  color: var(--text-tertiary);
  max-width: 480px;
  margin-inline: auto;
}

/* ---- Engine grid ---- */
.engine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

/* ---- Compare links ---- */
.compare-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-sm);
}

.compare-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: var(--surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-primary);
  transition: all var(--duration-fast) var(--ease-out);
}

.compare-link:hover {
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.04);
  transform: translateY(-1px);
}

.compare-link__engines {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.compare-link__name {
  font-weight: 500;
}

.compare-link__vs {
  color: var(--text-tertiary);
  font-size: var(--font-size-xs);
  font-style: italic;
}

.compare-link i {
  color: var(--text-tertiary);
  transition: transform var(--duration-fast) var(--ease-out);
}

.compare-link:hover i {
  transform: translateX(3px);
  color: var(--color-primary);
}

/* ---- CTA section ---- */
.section--cta {
  padding: var(--space-3xl) 0;
}

.cta__title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-sm);
}

.cta__desc {
  margin-bottom: var(--space-lg);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .features__grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .feature-item {
    padding: var(--space-lg);
  }

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

  .compare-links {
    grid-template-columns: 1fr;
  }
}