header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: transform var(--transition-base);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  gap: var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.logo-icon {
  display: flex; 
}

.logo-icon img {
  width: 40px;   
  height: 40px;  
  object-fit: contain; 
}

.logo-text {
  color: var(--color-text-primary);
}

.logo-domain {
  color: var(--color-primary);
}

/* Navigation */
nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-md);
  align-items: center;
}

.nav-links a {
  position: relative;
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--body-small);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 8px;
  transition: all var(--transition-base);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition-base);
}

.nav-links a:hover {
  color: var(--color-primary);
  background: rgba(21, 158, 0, 0.05);
}

.nav-links a:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-links a:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* Phone */
.phone-wrapper {
  position: relative;
}

.phone-link {
  font-family: var(--font-mono);
  font-size: var(--body-small);
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
  padding: var(--space-xs) var(--space-sm);
  border: 2px solid var(--color-primary);
  border-radius: 8px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-link:hover,
.phone-link:focus {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.phone-link:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

.phone-link::before {
  content: '✨';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.5rem;
  opacity: 0;
  animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
  0%, 100% {
    opacity: 0;
    top: -20px;
  }
  50% {
    opacity: 1;
    top: -10px;
  }
}

.phone-tooltip {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--color-primary);
  color: white;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.875rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.phone-tooltip.show {
  opacity: 1;
}