.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  color: #e5e7eb;
}

body.theme-light .site-header {
  background-color: rgba(248, 250, 252, 0.9);
  color: #0f172a;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  flex-direction: column;
  font-weight: 700;
}

.logo-main {
  letter-spacing: 0.08em;
  font-size: 0.9rem;
  text-transform: uppercase;
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--color-text-muted-light);
}

body.theme-dark .logo-sub {
  color: var(--color-text-muted-dark);
}

.main-nav ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle-bar {
  width: 20px;
  height: 2px;
  background-color: currentColor;
  display: block;
  margin: 3px 0;
}

.theme-toggle {
  margin-left: 1rem;
  background: none;
  border: 1px solid var(--color-border-light);
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
  font-size: 0.85rem;
}

body.theme-dark .theme-toggle {
  border-color: var(--color-border-dark);
}

.theme-icon-dark {
  display: none;
}

body.theme-dark .theme-icon-dark {
  display: inline;
}

body.theme-dark .theme-icon-light {
  display: none;
}

/* HERO */

.hero {
  padding: 5rem 0 4rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.hero-text h1 {
  font-size: 2.4rem;
  margin-bottom: 1rem;
}

.hero-text p {
  font-size: 1.05rem;
  color: var(--color-text-muted-light);
  max-width: 34rem;
}

body.theme-dark .hero-text p {
  color: var(--color-text-muted-dark);
}

.hero-actions {
  margin-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
align-items: center;     /* centro vertical */
  text-align: center;      /* centraliza o texto dentro do card */
  min-height: 300px;       /* ajuste conforme o layout */
}

.hero-card {
  background: linear-gradient(135deg, #1d4ed8, #0f172a);
  color: #e5e7eb;
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  max-width: 320px;
}

.hero-card h2 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.hero-card p {
  margin: 0;
  font-size: 0.95rem;
}

/* SERVICES GRID */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.8rem;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

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

  .main-nav {
    position: absolute;
    inset: var(--header-height) 0 auto 0;
    background-color: inherit;
    padding: 1rem 1.5rem 1.5rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-toggle {
    display: block;
  }
}

/* FOOTER */

.site-footer {
  border-top: 1px solid var(--color-border-light);
  padding: 1.5rem 0;
  background-color: var(--color-surface-light);
}

body.theme-dark .site-footer {
  background-color: var(--color-surface-dark);
  border-top-color: var(--color-border-dark);
}

.footer-inner {
  text-align: center;
  font-size: 0.9rem;
}

.footer-small {
  margin-top: 0.25rem;
  color: var(--color-text-muted-light);
}

body.theme-dark .footer-small {
  color: var(--color-text-muted-dark);
}