/* Header styles */
.header {
    background-color: var(--color-background);
    padding-top: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-link:hover {
    opacity: 0.8;
}

.logo-image {
    margin-right: var(--space-sm);
    width: 32px;
    height: 32px;
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links a {
    margin-left: var(--space-lg);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: normal;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
}

.nav-links a:hover,
.nav-links a:focus {
    color: var(--color-text-primary);
    text-decoration: none;
}

/* Hamburger Menu Button */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    z-index: 1000;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: var(--color-text-primary);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Overlay for mobile menu */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 998;
    display: none;
}

.overlay.active {
    display: block;
}

/* Mobile Styles */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        display: flex;
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--color-background);
        border-left: 1px solid var(--color-border);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: var(--space-xxl) var(--space-lg);
        transition: right 0.3s ease-in-out;
        z-index: 999;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
    }

    .nav-links a {
        margin: var(--space-md) 0;
        margin-left: 0;
        font-size: 1.1rem;
        padding: var(--space-sm) 0;
        width: 100%;
        border-bottom: 1px solid var(--color-border);
        transition: color 0.2s ease-in-out;
    }

    .nav-links.open {
        right: 0;
    }

    /* Hamburger animation when menu is open */
    .hamburger.open .hamburger-line:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .hamburger.open .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .hamburger.open .hamburger-line:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
}