body{
    background: linear-gradient(135deg, #0f4c81, #1e88e5);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Card utama */
.card{
    border: none !important;
    border-radius: 20px !important;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    animation: fadeIn 0.8s ease;
}

.card:hover{
    transform: translateY(-5px);
}

/* Logo */
.card-img-top{
    margin: 20px auto 10px auto;
    display: block;
    width: 100px !important;
    height: auto !important;
    transition: transform 0.3s ease;
}

.card-img-top:hover{
    transform: scale(1.1);
}

/* Judul */
.card-title{
    font-weight: 700;
    color: #0f4c81;
    line-height: 1.4;
}

/* Link sekolah */
.card-title a{
    text-decoration: none;
    color: #1e88e5;
}

.card-title a:hover{
    color: #0f4c81;
}

/* Informasi sertifikat */
.card-text{
    line-height: 1.6;
}

/* Link tombol sertifikat */
.card-text a,
h5 a{
    display: inline-block;
    margin-top: 10px;
    padding: 10px 25px;
    background: #198754;
    color: white !important;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.card-text a:hover,
h5 a:hover{
    background: #146c43;
    transform: scale(1.05);
}

/* Paragraf petunjuk */
.card-body p{
    color: #555;
    font-size: 15px;
}

/* Animasi */
@keyframes fadeIn{
    from{
        opacity:0;
        transform:translateY(30px);
    }
    to{
        opacity:1;
        transform:translateY(0);
    }
}

/* Responsive */
@media (max-width:576px){
    .card{
        width:100% !important;
    }

    .card-title{
        font-size:1.1rem;
    }

    .card-body{
        padding:20px;
    }
}