.site-header { position: fixed; top: 0; width: 100%; padding: 40px 50px; display: flex; justify-content: space-between; align-items: center; z-index: 999; transition: all var(--transition-speed) ease; }
.desktop-nav { display: flex; gap: 40px; }
.desktop-nav a { color: var(--color-white); text-decoration: none; font-size: 13px; text-transform: uppercase; letter-spacing: 2px; transition: color var(--transition-speed) ease; }
.site-header .logo-container { position: absolute; left: 50%; display: flex; flex-direction: column; align-items: center; }
.site-header .logo { color: var(--color-white); font-size: 2rem; font-weight: 600; line-height: 1; transition: color var(--transition-speed) ease; }

.countdown { margin-top: 6px; color: var(--color-white); font-family: var(--secondary-font); font-size: 0.65rem; letter-spacing: 3px; opacity: 0.8; display: flex; gap: 4px; transition: color var(--transition-speed) ease; }
.countdown b { font-weight: 500; }
.site-header.scrolled { background: var(--header-bg); padding: 40px 50px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); }
.site-header.scrolled .logo, .site-header.scrolled .countdown, .site-header.scrolled .desktop-nav a { color: var(--color-black); }

.hamburger { display: none; flex-direction: column; align-items: flex-end; gap: 6px; cursor: pointer; z-index: 1000; }
.hamburger .line { height: 2px; background: var(--color-white); transition: all 0.4s ease; }
.line1 { width: 32px; } .line2 { width: 13px; } .line3 { width: 20px; }
.hamburger.active .line1 { transform: translateY(8px) rotate(45deg); width: 32px; }
.hamburger.active .line2 { opacity: 0; }
.hamburger.active .line3 { transform: translateY(-8px) rotate(-45deg); width: 32px; }
.site-header.scrolled .hamburger .line { background: var(--color-black); }
.hamburger.active .line { background: var(--color-white) !important; }

.mobile-menu { position: fixed; bottom: 0; left: 0; width: 100vw; height: 0vh; background: rgba(10, 10, 10, 0.98); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); z-index: 998; display: flex; align-items: center; padding: 0 20px; overflow: hidden; }
.mobile-menu-content { width: 100%; opacity: 0; transform: translateY(30px); }
.mobile-nav { display: flex; flex-direction: column; gap: 20px; margin-bottom: 40px; }
.mobile-nav a { color: var(--color-white); font-family: var(--primary-font); font-size: 30px; text-decoration: none; font-style: italic; }
.mobile-extra-info { border-top: 1px solid rgba(255,255,255,0.2); padding-top: 30px; color: var(--color-white); }
.mobile-extra-info h3 { font-size: 1.5rem; margin-bottom: 10px; font-family: var(--primary-font); }
.mobile-extra-info p { font-family: var(--secondary-font); font-size: 0.8rem; letter-spacing: 2px; text-transform: uppercase; opacity: 0.7; margin-bottom: 5px; }

@media (max-width: 768px) {
  .site-header { padding: 12px; } .desktop-nav { display: none; } .hamburger { display: flex; } 
  .site-header .logo-container { position: relative; left: 0; transform: none !important; align-items: flex-start; }
  .site-header .logo { font-size: 1.6rem; } .countdown { font-size: 0.5rem; letter-spacing: 2px;  display: none;}
  .site-header.scrolled { padding: 12px 12px; }

  .logo {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start !important;
    width: 150px; /* Set to the width of your logo */
    height: 60px; /* Set to the height of your logo */
  }
}
/* --- LOGO IMAGE SWAP LOGIC --- */
.logo {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 150px; /* Set to the width of your logo */
  height: 60px; /* Set to the height of your logo */
}

.img-logo {
  position: absolute;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: opacity 0.4s ease;
}

/* Default state: Top of page (Transparent Header) */
.dark-logo { opacity: 0; }
.light-logo { opacity: 1; }

/* Scrolled state: Header has background color */
.site-header.scrolled .light-logo { opacity: 0; }
.site-header.scrolled .dark-logo { opacity: 1; }