/* Wrapper */

.scf-du-an-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    font-family: 'Montserrat';
}


/* Bộ lọc */
.scf-du-an-filter {
    display: flex;
    justify-content: flex-start; /* luôn căn trái */
    overflow-x: auto;            /* cho phép cuộn ngang */
    gap: 12px;
    padding-bottom: 10px;
    margin-bottom: 25px;
    scrollbar-width: none;       /* ẩn scrollbar Firefox */
    -webkit-overflow-scrolling: touch; /* mượt trên iOS */
    white-space: nowrap;          /* tránh wrap xuống dòng */
}

/* Ẩn scrollbar Chrome/Safari */
.scf-du-an-filter::-webkit-scrollbar {
    display: none;
}

/* Nút filter không bị co lại */
.scf-du-an-filter-btn {
    flex-shrink: 0;              /* giữ kích thước nút */
}


.scf-du-an-filter-btn {
    font-family: 'Montserrat';
    flex-shrink: 0;
    padding: 10px 18px;
    border: 1px solid #e0e0e0;
    background: #fff;
    cursor: pointer;
    white-space: nowrap;
    font-size: 15px;
    font-weight: 500;
    color: #333;
    transition: all 0.25s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.scf-du-an-filter-btn:hover {
    background: #f0f7ff;
    border-color: #0073aa;
    color: #0073aa;
}

.scf-du-an-filter-btn.active {
    background: #0073aa;
    border-color: #0073aa;
    color: #fff;
}


/* Grid layout */

.scf-du-an-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}


/* Item */

.scf-du-an-item {
    background: #fff;
    padding: 12px;
    text-align: left;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.scf-du-an-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}


/* Khung ảnh đại diện */

.scf-du-an-thumb {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    /* Tỷ lệ ảnh: 4:3. Đổi 100% nếu muốn vuông, 56.25% nếu muốn 16:9 */
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 10px;
}


/* Ảnh đại diện */

.scf-du-an-thumb img {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Cắt vừa khung, giữ tỷ lệ */
    transform: translate(-50%, -50%);
    transition: transform 0.3s ease;
}


/* Hiệu ứng hover ảnh */

.scf-du-an-item:hover .scf-du-an-thumb img {
    transform: translate(-50%, -50%) scale(1.05);
}

.scf-du-an-item h3 {
    font-family: 'Montserrat';
    font-size: 14px;
    font-weight: 600;
    color: #222;
    margin: 8px 0 0;
    line-height: 1.4;
}


/* Description full */

.scf-du-an-desc {
    font-size: 12px;
    line-height: 1.6;
    color: #444;
    margin-top: 8px;
    word-break: break-word;
    /* tránh link quá dài bị tràn */
    text-align: left;
}

.scf-du-an-desc a {
    font-family: 'Montserrat';
    color: #0073aa;
    font-weight: 500;
    text-decoration: none;
}

.scf-du-an-desc a:hover {
    text-decoration: none !important;
    color: #005f88;
}


/* Spinner chung */

.scf-du-an-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid #0073aa;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    will-change: transform;
    /* GPU render mượt */
    backface-visibility: hidden;
    /* tránh giật khi render */
}


/* Xoay thuận chiều (mặc định) */

.scf-du-an-loading .scf-du-an-spinner {
    animation: spin 1s linear infinite;
}


/* Xoay ngược chiều kim đồng hồ (Thu gọn) */

.scf-du-an-loading.scf-du-an-cw-reverse .scf-du-an-spinner {
    animation: spin-reverse 1s linear infinite;
}


/* keyframes */

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

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


/* Nút xem thêm */

.scf-du-an-loadmore {
    text-align: center;
    margin-top: 25px;
}

#scf-du-an-loadmore-btn {
    font-family: 'Montserrat';
	margin-top: 20px;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    background: linear-gradient(135deg, #0073aa, #0099cc);
    color: #fff;
    transition: all 0.3s ease;
}

#scf-du-an-loadmore-btn:hover {
    background: linear-gradient(135deg, #005f88, #0073aa);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 115, 170, 0.4);
}


/* Laptop & tablet ngang: 3 cột */

@media (max-width: 1024px) {
    .scf-du-an-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}


/* Tablet dọc (iPad Mini 768px) → 2 cột */

@media (max-width: 768px) {
    .scf-du-an-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


/* Mobile nhỏ: 1 cột */

@media (max-width: 480px) {
    .scf-du-an-grid {
        grid-template-columns: 1fr;
    }
}