/**
 * @file header.css
 * @description Component-specific BEM styles for Header, Sidebar, and Menu.
 * @version 1.0.0
 */

/* Header Component */
.sdi-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--sdi-spacing-16);
  border-bottom: 1px solid var(--sdi-color-border);
  z-index: 40;
  transition: all var(--sdi-transition-normal);
  background-color: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(4px);
}

@media (min-width: 768px) {
  .sdi-header {
    left: var(--sdi-spacing-16);
  }
}

.sdi-header--scrolled {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
}

.sdi-header__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 var(--sdi-spacing-8);
  width: 100%;
}

.sdi-header__brand {
  display: flex;
  align-items: center;
  gap: var(--sdi-spacing-8);
  width: 100%;
}

.sdi-header__logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  font-family: var(--sdi-font-headline);
}

.sdi-header__nav {
  display: none;
  gap: var(--sdi-spacing-6);
  margin-inline: auto;
}

@media (min-width: 768px) {
  .sdi-header__nav {
    display: flex;
  }
}

.sdi-header__link {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 700;
  transition: opacity var(--sdi-transition-fast);
}

.sdi-header__link--active {
  border-bottom: 1px solid var(--sdi-color-accent);
}

.sdi-header__link--inactive {
  opacity: 0.5;
}

.sdi-header__link--inactive:hover {
  opacity: 1;
}

.sdi-header__actions {
  display: flex;
  align-items: center;
  gap: var(--sdi-spacing-4);
}

.sdi-header__button {
  display: none;
}

@media (min-width: 768px){
  .sdi-header__button {
    display: inline-flex;
  }
}

.sdi-header__menu-toggle {
  padding: var(--sdi-spacing-2);
  color: var(--sdi-color-primary);
}

@media (min-width: 768px) {
  .sdi-header__menu-toggle {
    display: none;
  }
}

/* Sidebar Component */
.sdi-sidebar {
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  width: var(--sdi-spacing-16);
  border-right: 1px solid var(--sdi-color-border);
  flex-direction: column;
  align-items: center;
  padding: var(--sdi-spacing-8) 0;
  z-index: 50;
  background-color: var(--sdi-color-white);
}

@media (min-width: 768px) {
  .sdi-sidebar {
    display: flex;
  }
}

.sdi-sidebar__logo {
  margin-bottom: var(--sdi-spacing-12);
  color: var(--sdi-color-accent);
}

.sdi-sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: var(--sdi-spacing-12);
  align-items: center;
  flex: 1;
}

.sdi-sidebar__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sdi-spacing-2);
  cursor: pointer;
}

.sdi-sidebar__icon {
  width: 1.25rem;
  height: 1.25rem;
  color: rgba(0, 103, 127, 0.4);
  transition: color var(--sdi-transition-fast);
}

.sdi-sidebar__item:hover .sdi-sidebar__icon {
  color: var(--sdi-color-accent);
}

.sdi-sidebar__label {
  font-size: 0.5625rem;
  text-transform: uppercase;
  letter-spacing: -0.05em;
  font-weight: 700;
  opacity: 0.4;
  transition: opacity var(--sdi-transition-fast);
}

.sdi-sidebar__item:hover .sdi-sidebar__label {
  opacity: 1;
}

.sdi-sidebar__footer {
  margin-top: auto;
}

.sdi-sidebar__version {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  opacity: 0.4;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

/* Mobile Menu Component */
.sdi-mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 100;
  background-color: var(--sdi-color-primary);
  display: none;
  flex-direction: row;
  transition: all var(--sdi-transition-normal);
}

.sdi-mobile-menu--open {
  display: flex;
}

.sdi-mobile-menu__sidebar {
  width: 5rem;
  border-right: 1px solid var(--sdi-color-border-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--sdi-spacing-12) 0;
  background-color: rgba(0, 45, 60, 0.2);
}

.sdi-mobile-menu__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: rgba(0, 103, 127, 0.95);
  backdrop-filter: blur(4px);
  position: relative;
}

.sdi-mobile-menu__close {
  position: absolute;
  top: var(--sdi-spacing-6);
  right: var(--sdi-spacing-6);
  color: var(--sdi-color-white);
  padding: var(--sdi-spacing-2);
}

.sdi-mobile-menu__nav-container {
  flex: 1;
  overflow-y: auto;
  padding: var(--sdi-spacing-24) var(--sdi-spacing-10) var(--sdi-spacing-12);
}

.sdi-mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: var(--sdi-spacing-12);
}

.sdi-mobile-menu__nav-section-title {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--sdi-color-accent);
  margin-bottom: var(--sdi-spacing-6);
  display: block;
  font-weight: 700;
}

.sdi-mobile-menu__nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--sdi-spacing-6);
}

.sdi-mobile-menu__link {
  font-size: 1.25rem;
  font-family: var(--sdi-font-headline);
  font-weight: 700;
  color: var(--sdi-color-white);
  text-transform: uppercase;
  letter-spacing: -0.05em;
}

.sdi-mobile-menu__link--dimmed {
  color: rgba(255, 255, 255, 0.4);
}

.sdi-mobile-menu__footer {
  background-color: rgba(0, 35, 45, 1);
  padding: var(--sdi-spacing-10);
  display: flex;
  flex-direction: column;
  gap: var(--sdi-spacing-8);
  align-items: center;
  text-align: center;
}