/* ===================================================
   ROSE EVENTS — Header / Navigation
   =================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: all 300ms ease;
  padding: 1.5rem 0;
}

.site-header.scrolled {
  background: rgba(17, 17, 17, 0.9);
  backdrop-filter: blur(12px);
  padding: 1rem 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-inner {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 1024px) {
  .header-inner { padding: 0 3rem; }
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  text-decoration: none;
}

.site-logo .logo-text {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--white);
  transition: color 300ms;
}

/* On non-home pages with light bg, before scroll */
.header-light .site-logo .logo-text { color: var(--black); }
.header-light.scrolled .site-logo .logo-text { color: var(--white); }

.site-logo .logo-script {
  font-family: var(--font-script);
  font-size: 1.875rem;
  color: var(--accent);
}

/* Desktop Nav */
.nav-desktop {
  display: none;
  align-items: center;
  gap: 2.5rem;
}

@media (min-width: 1024px) {
  .nav-desktop { display: flex; }
}

.nav-link {
  position: relative;
  padding: 0.5rem 0;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--white);
  transition: color 300ms;
  text-decoration: none;
}

.header-light .nav-link { color: var(--black); }
.header-light.scrolled .nav-link { color: var(--white); }

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 300ms;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: flex;
  padding: 0.5rem;
  color: var(--white);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 60;
}

.header-light .nav-toggle { color: var(--black); }
.header-light.scrolled .nav-toggle { color: var(--white); }

@media (min-width: 1024px) {
  .nav-toggle { display: none; }
}

/* Hamburger icon */
.hamburger {
  width: 24px;
  height: 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: all 300ms;
  transform-origin: center;
}

.nav-toggle.open .hamburger span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}
.nav-toggle.open .hamburger span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open .hamburger span:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.nav-mobile {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: rgba(17, 17, 17, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  transform: translateX(100%);
  transition: transform 500ms ease;
}

.nav-mobile.open {
  transform: translateX(0);
}

.nav-mobile .mobile-link {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  color: var(--white);
  letter-spacing: 0.05em;
  transition: color 300ms;
  font-weight: 300;
  text-decoration: none;
}

.nav-mobile .mobile-link:hover {
  color: var(--accent);
}

.nav-mobile .mobile-cta {
  margin-top: 2rem;
  padding: 1rem 2rem;
  background: var(--accent);
  color: var(--white);
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 0.875rem;
  border-radius: 10px;
  transition: background 300ms;
  text-decoration: none;
}

.nav-mobile .mobile-cta:hover {
  background: var(--accent-dark);
}