/* ==========================================================================
   LumeVero — HEADER & NAVIGATION STYLES (Single-Line & Responsive)
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: all 0.35s ease;
  background: transparent;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(3, 5, 7, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--surface-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-main);
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none;
}

.brand-logo-img {
  height: 76px;
  width: auto;
  max-width: 340px;
  object-fit: contain;
  display: block;
  transition: transform 0.25s ease, filter 0.25s ease;
}

.brand-logo:hover .brand-logo-img {
  transform: scale(1.03);
  filter: drop-shadow(0 0 12px rgba(0, 170, 85, 0.55));
}

/* Navigation Menu Container - Enforces Single-Line Layout */
nav {
  display: flex;
  align-items: center;
  flex-shrink: 1;
  min-width: 0;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
  white-space: nowrap;
  flex-wrap: nowrap;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s ease, text-shadow 0.2s ease;
  white-space: nowrap;
  display: inline-block;
  padding: 4px 0;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-green);
  text-shadow: 0 0 10px var(--accent-green-glow);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  transition: width 0.2s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Header Action Buttons */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-secondary-nav {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 6px;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.btn-secondary-nav:hover {
  color: var(--accent-green);
}

.btn-primary-nav {
  font-size: 0.8125rem;
  font-weight: 700;
  color: #030507;
  background: var(--accent-green);
  padding: 9px 16px;
  border-radius: 8px;
  box-shadow: 0 0 18px var(--accent-green-glow);
  white-space: nowrap;
  transition: all 0.2s ease;
}

.btn-primary-nav:hover {
  background: var(--accent-green-hover);
  transform: translateY(-1.5px);
  box-shadow: 0 0 24px rgba(0, 170, 85, 0.45);
}

/* Mobile Hamburger Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-main);
  padding: 6px;
  flex-shrink: 0;
}

.mobile-toggle svg {
  width: 26px;
  height: 26px;
}

/* Mobile Drawer Menu */
.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0; right: 0; bottom: 0;
  background: rgba(3, 5, 7, 0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 10005;
  display: flex;
  flex-direction: column;
  padding: 32px 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.35s ease, visibility 0.35s ease, transform 0.35s ease;
  overflow-y: auto;
}

.mobile-drawer.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-nav-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.mobile-nav-link:hover {
  color: var(--accent-green);
}

/* Responsive Media Queries to Guarantee Single-Line Menu Fit */
@media (max-width: 1320px) {
  .nav-menu {
    gap: 14px;
  }
  .nav-link {
    font-size: 0.8125rem;
  }
}

@media (max-width: 1180px) {
  .nav-menu {
    gap: 10px;
  }
  .nav-link {
    font-size: 0.775rem;
  }
  .btn-primary-nav {
    padding: 8px 12px;
    font-size: 0.775rem;
  }
}

@media (max-width: 1060px) {
  .brand-logo-img {
    height: 60px;
  }
  .nav-menu,
  .header-actions {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
}