/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    position: sticky;
    top: 0;
    background-color: rgba(248, 249, 252, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid var(--color-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.03em;
}

.logo-text span {
    font-weight: 400;
    color: var(--color-primary);
}

.logo-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-secondary);
    border-radius: 50%;
    position: absolute;
    top: 0;
    right: -12px;
}

nav {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-fast);
}

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

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.contact-btn {
    padding: 8px 16px;
    background-color: var(--color-primary);
    color: white;
    border-radius: 4px;
}

.contact-btn:hover {
    background-color: var(--color-primary-dark);
    color: white;
}

.contact-btn::after {
    display: none;
}