body {
    padding: 0;
}

/*Header*/

.header {
    margin-top: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.header h3 {
    font-size: 50px;
    font-weight: bold;
    color: #1e1e1e;
}

/* Tabs */
.category-tabs {
    display: flex;
    width: 100%;
    padding-top: 30px;
}


.tab-btn {
    flex: 1;
    padding: 12px 0;
    border: none;
    background-color: white;
    width: 24.75%;
    text-align: center;
    font-family: 'poppins', sans-serif;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    border-bottom: 0.25px solid lightgray; /* Garis pemisah */
    transition: 0.3s;
}

.tab-btn:hover, .tab-btn.active {
    background-color: #f0f0f0; /* Efek hover */
    border-bottom: 3px solid #ff3131; /* Warna garis aktif */
}

.portofolio-container {
    display: block;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 0;
    box-sizing: border-box;
}

.portofolio-container::after {
    content: "";
    display: table;
    clear: both;
}

.grid-sizer,
.portofolio-item {
    width: calc(33% - 5px);
    float: left;
    margin: 0px;
    box-sizing: border-box;
}

.btn {
  background-color: #ff3131;
  color: #15296b;
  border: none;
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 500;
  transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: rgba(0, 51, 102, 0.1); /* soft navy */
    color: #003366; /* navy industrial */
    font-weight: 600;
}

@media screen and (max-width: 992px) {
    .header {
        margin-top: 20px;
    }
    .header h3{
        font-size: 32px;
    }
    .portofolio-item,
    .grid-sizer {
    width: 49%;
    margin: 0.5%;
    }
}

@media screen and (max-width: 576px) {
    .portofolio-item,
    .grid-sizer {
        width: 100%;
        margin: 0 0 20px 0;
        float: none;
    }
    
}

.carousel-item img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    object-position: center;
}