/* 네비게이션 */
nav {
    position: fixed;
    width: 100%;
    padding: 20px 0;
    background-color: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

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

.logo img {
    height: 40px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-menu a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

/* 모바일 메뉴 버튼 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 30px;
    height: 2px;
    background-color: var(--light-text);
    transition: var(--transition);
}

/* 푸터 */
footer {
    background-color: var(--dark-bg);
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    margin-bottom: 30px;
}

.footer-logo {
    height: 40px;
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--gray-text);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.link-group h4 {
    color: var(--light-text);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.link-group ul {
    list-style: none;
}

.link-group ul li {
    margin-bottom: 12px;
}

.link-group ul a {
    color: var(--gray-text);
    text-decoration: none;
    transition: var(--transition);
}

.link-group ul a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.social-link {
    color: var(--gray-text);
    text-decoration: none;
    transition: var(--transition);
}

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

/* 반응형 스타일 */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--dark-bg);
        padding: 20px;
        flex-direction: column;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}