/* Header styles */
.header {
    background: rgba(10, 14, 23, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    padding: var(--spacing-md) var(--spacing-xl);
}

.header-container {
    max-width: var(--max-width-container);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    background: linear-gradient(135deg, #fff, var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: transform var(--transition-base);
}

.logo i {
    background: none;
    color: var(--primary);
    -webkit-background-clip: unset;
    background-clip: unset;
}

.logo:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-links a {
    color: #ccc;
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-base);
    position: relative;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

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