/* ========================================
   LAYOUT
   Navigation, footer, section containers, hero
   ======================================== */

/* === NAVBAR === */
.navbar-main {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1050;
  min-height: var(--navbar-height);
  background: var(--navbar-bg);
  backdrop-filter: blur(var(--navbar-blur));
  -webkit-backdrop-filter: blur(var(--navbar-blur));
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.navbar-main.scrolled {
  background: var(--navbar-bg-solid);
  box-shadow: var(--shadow);
}

.navbar-main .navbar-brand-text {
  font-size: 1.25rem;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  letter-spacing: var(--ls-tight);
}

.navbar-brand-text .brand-accent {
  color: var(--color-accent-light);
}

.navbar-main .nav-link {
  color: var(--text-secondary);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  transition: color var(--duration-fast) ease;
}

.navbar-main .nav-link:hover,
.navbar-main .nav-link.active {
  color: var(--color-accent-light);
}

.navbar-main .navbar-toggler {
  border: 1px solid var(--border-default);
  padding: 0.4rem 0.6rem;
}

.navbar-toggler-icon {
  filter: invert(1) brightness(0.8);
}

/* Mobile nav dropdown background */
.navbar-main .navbar-collapse {
  background: var(--navbar-bg);
}

@media (max-width: 991.98px) {
  .navbar-main {
    background: var(--navbar-bg-mobile);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .navbar-main .container {
    flex-wrap: wrap;
  }

  .navbar-main .navbar-brand-text {
    font-size: 1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 1;
    min-width: 0;
  }

  .navbar-main .navbar-toggler {
    flex-shrink: 0;
  }

  .navbar-main .navbar-collapse {
    padding: 1rem 0;
    border-top: 1px solid var(--border-subtle);
    margin-top: 0.5rem;
  }
}

/* === MAIN CONTENT OFFSET === */
main {
  margin-top: var(--navbar-height);
}

/* === HERO SECTION === */
.hero-section {
  min-height: calc(100vh - var(--navbar-height));
  overflow: hidden;
  position: relative;
}

.hero-overline {
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-accent-light);
}

.hero-subtext {
  font-size: var(--fs-hero-sub);
  color: var(--text-secondary);
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--lh-relaxed);
}

/* === SECTION UTILITIES === */
.section-fullheight {
  min-height: calc(100vh - var(--navbar-height));
}

.section-bordered {
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

/* === VIDEO POSTER === */
.video-poster-inner {
  aspect-ratio: 16 / 9;
  background: var(--gradient-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.video-poster-label {
  color: var(--text-muted);
  font-size: var(--fs-small);
  margin: 0;
}

/* === CTA CONTENT (above ::before pseudo) === */
.cta-content {
  position: relative;
  z-index: 1;
}

.cta-subtext {
  color: var(--text-secondary);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

/* === FOOTER === */
.footer-main {
  background: var(--bg-dark);
  border-top: 1px solid var(--border-subtle);
  padding: var(--section-py) 0 2rem;
}

.footer-brand {
  font-size: 1.25rem;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-brand .brand-accent {
  color: var(--color-accent-light);
}

.footer-description {
  color: var(--text-muted);
  font-size: var(--fs-small);
  line-height: var(--lh-relaxed);
  max-width: 300px;
}

.footer-heading {
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: var(--fs-small);
  transition: color var(--duration-fast) ease, padding-left var(--duration-fast) ease;
}

.footer-links a:hover {
  color: var(--color-accent-light);
  padding-left: 4px;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-default);
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: all var(--duration) var(--ease-out);
  margin-right: 0.5rem;
}

.footer-social a:hover {
  color: var(--color-accent-light);
  border-color: var(--color-accent);
  box-shadow: var(--glow-gold-sm);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  margin-top: 3rem;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: var(--fs-xs);
  margin: 0;
}

.footer-bottom--minimal {
  border: none;
  margin: 0;
  padding: 0;
}