@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');

body {
    font-family: 'Poppins', sans-serif;
    /* GANTI BACKGROUND JADI SKY BLUE GRADIENT */
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-custom {
    background: #ffffff;
    border-radius: 20px; /* Lebih bulat biar modern */
    box-shadow: 0 15px 35px rgba(0, 180, 219, 0.2); /* Bayangan Biru Muda */
    overflow: hidden;
    border: none;
    animation: fadeIn 0.8s ease;
}

.card-header-custom {
    background: #eaf8ff; /* Putih kebiruan */
    padding: 25px;
    text-align: center;
    border-bottom: 2px solid #d4f1f4;
}

.card-header-custom h3 {
    color: #0099ff; /* Biru Langit Tua */
    font-weight: 700;
    margin: 0;
}

.form-control {
    background-color: #f8fbff;
    border: 1px solid #cce7ff;
    padding: 12px;
    border-radius: 10px;
}

.form-control:focus {
    box-shadow: 0 0 10px rgba(79, 172, 254, 0.3);
    border-color: #4facfe;
    background-color: #fff;
}

/* TOMBOL SKY BLUE */
.btn-primary {
    background: linear-gradient(to right, #4facfe, #00f2fe);
    border: none;
    padding: 12px;
    border-radius: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: transform 0.2s;
    box-shadow: 0 5px 15px rgba(0, 242, 254, 0.4);
}

.btn-primary:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 20px rgba(0, 242, 254, 0.6);
}

a {
    color: #0099ff; /* Link warna biru langit */
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}