/* 🔹 프로젝트 헤더 스타일 */
.project-header {
    position: relative;
    width: 100%;
    height: 250px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.project-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('/projects/images/projects.jpg') center/cover no-repeat;
    filter: brightness(50%);
}

.project-title {
    position: relative;
    font-size: 3rem;
    color: white;
    font-weight: bold;
    margin-top: 5rem;
}

/* 🔹 카테고리 탭 스타일 */
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 30px 0 0 0;
}

.category-tab {
    padding: 10px 20px;
    font-size: 16px;
    font-weight: bold;
    border: 2px solid #1A4B8C;
    background: white;
    color: #1A4B8C;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 5px;
}

.category-tab.active {
    background: #1A4B8C;
    color: white;
}

.category-tab:hover {
    background: #1A4B8C;
    color: white;
}

/* 🔹 컨테이너 스타일 */
.grid-container {
    display: none; /* 기본적으로 숨김 */
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    padding: 40px 5%;
    max-width: 1400px;
    margin: 0 auto;
    justify-content: center;
}

.grid-container.active {
    display: grid;
}

/* 🔹 카드 스타일 */
.construction-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 380px;
    margin: auto;
    padding-bottom: 15px;
}

.construction-card img {
    width: 350px;
    height: 230px;
    object-fit: cover;
    border-radius: 10px;
}

/* 🔹 카드 정보 */
.construction-info {
    width: 100%;
    text-align: left;
    padding: 15px 10px;
    min-height: 120px;
}

.construction-info h3 {
    margin: 10px 0;
    font-size: 18px;
    color: #222;
    font-weight: bold;
}

.construction-info p {
    font-size: 14px;
    color: #555;
    margin: 5px 0;
    display: flex;
    align-items: center;
}

.construction-info .icon {
    color: #ff7b00;
    margin-right: 5px;
}

.project-meta {
    font-size: 12px;
    color: #888;
    margin-bottom: 5px;
}

/* 🔹 모달 스타일 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    align-items: center;
    justify-content: center;
}

.modal-content {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.close {
    position: absolute;
    top: 15px;
    right: 25px;
    font-size: 35px;
    font-weight: bold;
    color: white;
    cursor: pointer;
}

.close:hover {
    color: #bbb;
}

/* 🔹 로딩 스타일 */
#loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

#loading img {
    width: 80px;
    height: 80px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 🔹 숨김 클래스 */
.hidden {
    display: none !important;
}

/* 🔹 반응형 디자인 */
@media (max-width: 768px) {
    .grid-container {
        grid-template-columns: 1fr;
    }

    .category-tabs {
        flex-direction: column;
        align-items: center;
    }

    .category-tab {
        width: 80%;
        text-align: center;
    }
}