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

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #6a11cb, #2575fc);
    color: #333;
}

.card {
    background: #fff;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    width: 350px;
    text-align: center;
    animation: fadeIn 1s ease-in-out;
}

.card h2 {
    margin-bottom: 20px;
    font-weight: 600;
    color: #444;
}

/* Input form */
.card input[type="text"] {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 2px solid #ddd;
    border-radius: 10px;
    outline: none;
    font-size: 14px;
    transition: 0.3s;
}

.card input[type="text"]:focus {
    border-color: #2575fc;
    box-shadow: 0 0 8px rgba(37,117,252,0.3);
}

/* Tombol */
.card button {
    width: 100%;
    padding: 12px;
    margin-top: 15px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #2575fc, #6a11cb);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.card button:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

/* Hasil perhitungan */
.hasil {
    margin-top: 20px;
    padding: 15px;
    background: #f9f9f9;
    border-left: 5px solid #2575fc;
    border-radius: 8px;
    text-align: left;
    animation: slideUp 0.6s ease-in-out;
}

.hasil p {
    margin-bottom: 8px;
    font-size: 14px;
}

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

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