body {
    background: #020617;
    font-family: Arial, sans-serif;
    color: #fff;
}

.container-wallet {
    padding: 15px;
    max-width: 500px;
    margin: auto;
}

/* BALANCE CARD */
.balance-card {
    background: linear-gradient(135deg, #6d28d9, #4f46e5);
    border-radius: 18px;
    padding: 30px
}

.balance-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.balance-amount {
    font-size: 35px;
    font-weight: bold;
    margin-top: 10px;
}

/* INPUT SECTION */
.input-card {
    background: #111827;
    border-radius: 16px;
    padding: 20px;
    margin-top: 20px;
    border: 1px solid rgba(34,197,94,0.15);
}

/* LABEL */
.input-card label {
    font-size: 14px;
    color: #cbd5e1;
}

/* INPUT */
.input-card input {
    width: 100%;
    padding: 14px;
    margin-top: 8px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.1);
    background: #020617;
    color: #fff;
    font-size: 16px;
    outline: none;
}

/* INPUT FOCUS */
.input-card input:focus {
    border-color: #22c55e;
}

/* BUTTON */
.btn-submit {
    width: 100%;
    margin-top: 20px;
    padding: 14px;
    border-radius: 12px;
    border: none;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

/* HOVER */
.btn-submit:hover {
    opacity: 0.9;
}

/* MOBILE */
@media (max-width: 480px) {
    .balance-amount {
        font-size: 24px;
    }
}