/* =====================================================
   HEADER & NAVIGATION
   ===================================================== */
header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: box-shadow var(--transition-base) var(--transition-ease);
}

header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Full-width header container */
.nav {
  width: 100%;
  padding: var(--sm) var(--xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--xl);
}

/* LOGO – HARD LEFT */
.brand {
  margin-left: 0;
  flex-shrink: 0;
}

.brand img {
  height: 80px;
  width: auto;
  display: block;
}

/* NAVIGATION – RIGHT */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--lg);
}

.main-nav a,
.main-nav .dropdown {
  text-decoration: none;
  font-weight: 500;
  color: var(--text);
  position: relative;
  white-space: nowrap;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--red);
  transition: .3s;
}

.main-nav a:hover::after {
  width: 100%;
}

.main-nav a.active::after {
  width: 100%;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--xs);
}

.dropdown-toggle::after {
  content: '▾';
  font-size: .8rem;
  transition: transform .2s;
}

.dropdown:hover .dropdown-toggle::after {
  transform: rotate(-180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + var(--md));
  left: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all .3s ease;
  z-index: 1000;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: var(--sm) var(--lg);
  margin: 0;
  color: var(--text);
  text-decoration: none;
  transition: background .2s;
}

.dropdown-menu a:first-child {
  border-radius: 10px 10px 0 0;
}

.dropdown-menu a:last-child {
  border-radius: 0 0 10px 10px;
}

.dropdown-menu a:hover {
  background: var(--bg);
}

.dropdown-menu a::after {
  display: none;
}

/* Right-side wrapper to keep nav and register grouped */
.nav-right {
  display: flex;
  align-items: center;
  gap: var(--xl);
}

/* Hamburger button */
.menu-toggle {
  display: none !important; /* hidden on desktop */
  background: transparent;
  border: none;
  padding: var(--sm);
  margin-right: var(--lg);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text);
  margin: 6px 0;
  transition: .25s;
}

.nav-right.open .menu-toggle span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-right.open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.nav-right.open .menu-toggle span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Register button styling */
.register-btn {
  padding: 0.65rem 1.3rem;
  border-radius: 10px;
  background: var(--gold);
  color: var(--green-dark);
  text-decoration: none;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base) var(--transition-ease);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target);
  white-space: nowrap;
  flex-shrink: 0;
}

.register-btn:hover {
  transform: translateY(-2px);
  background: var(--gold-light);
  box-shadow: var(--shadow-md);
}

.register-btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Touch-friendly - reduce transform on mobile to avoid unintended effects */
@media (hover: none) and (pointer: coarse) {
  .register-btn:active {
    transform: translateY(0);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  header {
    transition: none;
  }

  .main-nav a::after,
  .dropdown-toggle::after,
  .dropdown-menu,
  .register-btn {
    transition: none;
  }

  .main-nav a:hover,
  .register-btn:hover {
    transform: none;
  }
}