/* ============================================================
   THE SIDE OUT — Header / Nav
   ============================================================ */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: var(--sp-4) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  background: transparent;
  transition: background 300ms var(--ease-out), padding 300ms var(--ease-out), backdrop-filter 300ms;
}
.site-header--scrolled {
  background: rgba(6, 18, 42, 0.92);
  backdrop-filter: blur(12px);
  padding: var(--sp-2) var(--gutter);
  border-bottom: 1px solid rgba(245, 248, 253, 0.07);
}

.site-header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.site-header__logo img {
  height: 52px;
  width: auto;
}
.site-header--scrolled .site-header__logo img {
  height: 40px;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  list-style: none;
}
@media (max-width: 768px) {
  .site-header__nav { display: none; }
  .site-header__nav--open { display: flex; flex-direction: column; }
}
.site-header__nav a {
  font-family: var(--font-body);
  font-size: var(--t-small);
  font-weight: 500;
  color: var(--concrete-200);
  text-decoration: none;
  transition: color 150ms;
  position: relative;
}
.site-header__nav a::after {
  content: "";
  position: absolute;
  bottom: -2px; left: 0; right: 100%;
  height: 1.5px;
  background: var(--court-400);
  transition: right 150ms var(--ease-out);
}
.site-header__nav a:hover { color: var(--chalk); }
.site-header__nav a:hover::after { right: 0; }

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}

.site-header__hamburger {
  display: none;
  background: none;
  border: none;
  padding: var(--sp-2);
  cursor: pointer;
  color: var(--chalk);
  flex-direction: column;
  gap: 5px;
}
.site-header__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 200ms, opacity 200ms;
}
@media (max-width: 768px) {
  .site-header__hamburger { display: flex; }
}

/* Mobile full-screen nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--navy-900);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-8);
}
.mobile-nav--open { display: flex; }
.mobile-nav a {
  font-family: var(--font-display);
  font-size: var(--t-display);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--chalk);
  text-decoration: none;
  transition: color 150ms;
}
.mobile-nav a:hover { color: var(--gold-500); }
.mobile-nav__close {
  position: absolute;
  top: var(--sp-6); right: var(--gutter);
  background: none; border: none; cursor: pointer;
  color: var(--concrete-400);
  font-size: 1.5rem;
}