/* ✅ 전체 스타일 */
#main {
    margin: 0 !important;
    padding: 0 !important;
}

#main .container {
    margin: 0 !important;
    padding: 0 !important;
    width: 100%;
    max-width: none;
}

.box.post {
    margin: 0 !important;
    padding: 0 !important;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 📌 메인 이미지 */
.main-image {
    width: 100%;
    margin-bottom: 20px;
    overflow: hidden; /* 넘치는 부분 잘리도록 설정 */
}

.main-image img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: cover;
}

/* 📌 네비게이션 버튼 (정사각형) */
.nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    max-width: 800px;
    width: 100%;
    padding: 0 20px 20px 20px;
}

.nav-item {
    position: relative;
    display: block;
    width: 100%;
    padding-top: 100%; /* 정사각형 유지 */
    background-color: #f4f4f4;
    border-radius: 8px;
    overflow: hidden;
    text-decoration: none;
    transition: transform 0.2s ease-in-out;
}

.nav-item img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    top: 0;
    left: 0;
}

.nav-item span {
    position: absolute;
    right: 10px;
    bottom: 10px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 14px;
}

/* ✅ 호버 효과 */
.nav-item:hover {
    transform: scale(1.05);
}

/* 📌 반응형 디자인 */
.nav-grid {
    grid-template-columns: repeat(5, 1fr);
}

@media (max-width: 600px) {
    .nav-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 400px) {
    .nav-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 공지 */
.notice {
    padding: 0 20px 20px 20px;
    width: 100%;
    max-width: 450px;
}