.main-header {
    background-color: var(--color-bg-dark);
    padding: var(--spacing-md) 0;
    position: relative;
    z-index: 100;
    border-bottom: none;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    width: 100%;
    max-width: 1376px;
    margin: 0 auto;
}

.logo img {
    height: 50px;
    width: auto;
}

.main-nav ul {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.main-nav a {
    color: var(--color-text-light);
    font-size: 0.95rem;
    font-weight: 600;
    transition: color var(--transition-fast);
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-brand-yellow);
    transition: width var(--transition-normal);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.main-nav a:hover, .main-nav a.active {
    color: var(--color-fg-light);
}

.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 101;
}

.hamburger-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-light);
    margin: 3px 0;
    transition: all 0.3s ease;
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-bg-dark);
    z-index: 99;
    padding: 5rem 2rem 2rem;
    box-shadow: 5px 0 30px rgba(0, 0, 0, 0.5);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-menu-links a {
    color: var(--color-text-light);
    font-size: 1.1rem;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.mobile-menu-links a:hover {
    color: var(--color-brand-yellow);
}

.mobile-menu-contact {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu-contact a {
    color: var(--color-text-light);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.mobile-menu-contact a:hover {
    color: var(--color-brand-yellow);
}

.mobile-menu-contact span {
    color: var(--color-text-gray);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .hamburger-btn {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--color-bg-dark);
        padding: 5rem 2rem 2rem;
        transition: right var(--transition-normal);
        z-index: 99;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.5);
    }

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

    .main-nav ul {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }

    .main-nav a {
        font-size: 1.1rem;
    }
}