body {
    background: #0b0f1a;
    font-family: Arial;
    color: white;
}

.container {
    width: 420px;
    margin: auto;
    margin-top: 40px;
}

.card {
    background: #111827;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
}

.center {
    text-align: center;
}

#prediction {
    font-size: 32px;
    font-weight: bold;
}

.up { color: #00ff9c; }
.down { color: #ff4d6d; }