/* ==========================================================================
   Component: Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  height: 60px;
  background: transparent;
  border-bottom: 1px solid #8b8b8b;
  transition: background-color var(--duration-base) var(--ease-standard),
              border-color var(--duration-base) var(--ease-standard),
              box-shadow var(--duration-base) var(--ease-standard);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.site-header__logo-img{
    width:42px;
    height:42px;
    object-fit:contain;
    flex-shrink:0;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--color-text);
  flex-shrink: 0;
}

.site-header__nav {
  display: none;
}

@media (min-width: 960px) {
  .site-header__nav { display: block; }
}

.site-header__nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-header__nav a {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-text-secondary);
  position: relative;
  padding-block: var(--space-2);
  transition: color var(--duration-fast) var(--ease-standard);
}

.site-header__nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--duration-base) var(--ease-standard);
}

.site-header__nav a:hover {
  color: var(--color-text);
}

.site-header__nav a:hover::after { width: 100%; }

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

.site-header__login {
  display: none;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-text);
}

@media (min-width: 960px) {
  .site-header__login { display: inline-flex; }
}

/* Hamburger toggle -------------------------------------------------------- */

.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

@media (min-width: 960px) {
  .site-header__toggle { display: none; }
}

.site-header__toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin-inline: auto;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-standard),
              opacity var(--duration-fast) var(--ease-standard);
}

.site-header__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.site-header__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.site-header__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile slide-down menu --------------------------------------------------- */

.mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  padding: var(--space-5);
  transform: translateY(-8px);
  opacity: 0;
  transition: transform var(--duration-base) var(--ease-out-soft),
              opacity var(--duration-base) var(--ease-out-soft);
}

.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
}

@media (min-width: 960px) {
  .mobile-menu { display: none !important; }
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-5);
}

.mobile-menu a {
  display: block;
  padding: var(--space-3) var(--space-2);
  font-weight: 600;
  font-size: var(--fs-body-lg);
  border-radius: var(--radius-sm);
}

.mobile-menu a:hover { background: var(--color-bg-light); }

.mobile-menu__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-menu__actions .btn { width: 100%; }