/**
 * LVH SYSTEMS — HEADER COMPONENT
 */

.lvh-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: var(--color-dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.lvh-header--scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-lg);
}

.lvh-header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4) var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  min-height: 72px;
}

.lvh-header__left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.lvh-header__menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: var(--transition-base);
}

.lvh-header__menu-toggle:hover {
  opacity: 0.8;
}

.lvh-header__menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition-base);
}

.lvh-header__menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.lvh-header__menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.lvh-header__menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.lvh-header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: var(--transition-base);
}

.lvh-header__logo:hover {
  opacity: 0.9;
}

.lvh-header__logo img {
  height: 40px;
  width: auto;
  display: block;
}

.lvh-header__right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.lvh-header__search {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  transition: var(--transition-base);
  border-radius: var(--radius-md);
}

.lvh-header__search:hover {
  background: rgba(255, 255, 255, 0.1);
}

.lvh-header__search svg {
  width: 20px;
  height: 20px;
}

.lvh-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  background: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.lvh-header__cta:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.lvh-header__nav {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-dark);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  z-index: var(--z-dropdown);
}

.lvh-header__nav.active {
  transform: translateX(0);
}

.lvh-header__nav-inner {
  padding: var(--space-8) var(--container-padding);
}

.lvh-header__nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.lvh-header__nav-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.lvh-header__nav-link {
  display: block;
  padding: var(--space-4) 0;
  color: var(--color-white);
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: var(--transition-base);
}

.lvh-header__nav-link:hover {
  color: var(--color-accent);
  padding-left: var(--space-2);
}

@media (min-width: 1024px) {
  .lvh-header__menu-toggle {
    display: none;
  }
  
  .lvh-header__nav {
    position: static;
    transform: none;
    background: none;
    overflow: visible;
  }
  
  .lvh-header__nav-inner {
    padding: 0;
  }
  
  .lvh-header__nav-list {
    display: flex;
    gap: var(--space-8);
    align-items: center;
  }
  
  .lvh-header__nav-item {
    border: none;
  }
  
  .lvh-header__nav-link {
    padding: 0;
    font-size: var(--text-base);
  }
  
  .lvh-header__nav-link:hover {
    padding-left: 0;
  }
  
  .lvh-header__inner {
    justify-content: space-between;
  }
  
  .lvh-header__logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  
  .lvh-header__right {
    margin-left: auto;
  }
}

@media (max-width: 768px) {
  .lvh-header__inner {
    padding: var(--space-3) var(--container-padding-mobile);
    min-height: 64px;
  }
  
  .lvh-header__logo img {
    height: 32px;
  }
  
  .lvh-header__cta {
    display: none;
  }
  
  .lvh-header__nav {
    top: 64px;
  }
}

body.nav-open {
  overflow: hidden;
}