/* ============================================
   RODRIGUES AUDIOVISUAL — LAYOUT
   ============================================ */

/* --- Container --- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

/* --- Sections --- */

.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section--alt {
  background-color: var(--color-bg-secondary);
}

.section__header {
  margin-bottom: var(--space-3xl);
}

.section__header.text-center {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section__title {
  margin-bottom: var(--space-md);
}

.section__subtitle {
  color: var(--color-text-secondary);
  font-size: var(--fs-md);
  max-width: 600px;
  line-height: var(--lh-body);
}

.section__header.text-center .section__subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* --- Grid Utilities --- */

.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-auto {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

/* --- Flex Utilities --- */

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* --- Header --- */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base);
}

.header.is-scrolled {
  background: rgba(10, 10, 10, 0.95);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--color-text-primary);
  white-space: nowrap;
  z-index: var(--z-header);
}

/* --- Navigation --- */

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-text-primary);
}

.nav__link.is-active {
  color: var(--color-accent);
}

/* --- Hamburger --- */

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  z-index: calc(var(--z-header) + 2);
}

.hamburger__line {
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
  transform-origin: center;
}

.hamburger[aria-expanded="true"] .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger[aria-expanded="true"] .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger[aria-expanded="true"] .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Mobile Nav Overlay --- */

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-header) + 1);
  background: var(--color-bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav__link {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.mobile-nav__link:hover,
.mobile-nav__link:focus-visible {
  color: var(--color-accent);
}

/* --- Footer --- */

.footer {
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-primary);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer__brand p {
  color: var(--color-text-secondary);
  font-size: var(--fs-sm);
  max-width: 320px;
  margin-top: var(--space-md);
  line-height: var(--lh-body);
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__link {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__link:hover,
.footer__link:focus-visible {
  color: var(--color-accent);
}

.footer__social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.footer__social-link:hover,
.footer__social-link:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-light);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.footer__bottom a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__bottom a:hover {
  color: var(--color-accent);
}