/* Header Styles - DorvArena */

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-accent);
  color: var(--color-gray-900);
  padding: var(--space-2) var(--space-4);
  font-weight: 600;
  z-index: var(--z-tooltip);
  transition: top var(--transition-fast);
  border-radius: 0 0 var(--radius-md) 0;
}

.skip-link:focus {
  top: 0;
}

/* Header Container */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(10, 15, 30, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-800);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--space-6);
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-accent {
  color: var(--color-accent);
}

.logo:hover .logo-accent {
  color: var(--color-accent-dark);
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-purple));
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-text);
}

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

/* Header CTA */
.header-cta {
  flex-shrink: 0;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--color-gray-700);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
  border-color: var(--color-accent);
  background: rgba(251, 191, 36, 0.1);
}

.mobile-menu-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-base);
  border-radius: 2px;
}

/* Mobile Styles */
@media (max-width: 1024px) {
  .header-container {
    height: 72px;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .main-nav {
    position: static;
  }
  
  .nav-list {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-gray-800);
    padding: var(--space-6);
    gap: var(--space-4);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
    box-shadow: var(--shadow-xl);
  }
  
  .nav-list-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-link {
    font-size: var(--text-lg);
    padding: var(--space-3) 0;
    display: block;
    width: 100%;
  }
  
  .nav-link::after {
    display: none;
  }
  
  .header-cta {
    display: none;
  }
  
  /* Hamburger animation when open */
  .nav-open .mobile-menu-toggle .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-open .mobile-menu-toggle .hamburger-line:nth-child(2) {
    opacity: 0;
  }
  
  .nav-open .mobile-menu-toggle .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
}

@media (max-width: 480px) {
  .header-container {
    height: 64px;
  }
  
  .nav-list {
    top: 64px;
  }
  
  .logo {
    font-size: var(--text-xl);
  }
}