.caixinha {
    max-width: 480px;
    margin: 60px auto;
    padding: 30px 25px;
    background-color: var(--bg-white);
    border-radius: 12px;
    box-shadow: 0 6px 12px var(--shadow-medium);
}

.form-senha {
    display: flex;
    flex-direction: column;
}

.form-senha h2 {
    font-size: 24px;
    margin-bottom: 25px;
    text-align: center;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-senha label {
    margin-bottom: 6px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-color-dark);
}

.form-senha input {
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 15px;
    transition: border 0.3s ease;
}

.form-senha input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.form-senha button[type="submit"] {
    background-color: var(--primary-color);
    color: var(--text-color-light);
    font-size: 16px;
    font-weight: bold;
    padding: 14px;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 3px 6px var(--shadow-light);
}

.form-senha button[type="submit"]:hover {
    background-color: var(--secondary-color);
    box-shadow: 0 6px 12px var(--shadow-medium);
    transform: translateY(-2px);
}

@media (max-width: 480px) {
    .caixinha {
        padding: 20px;
        margin: 40px 15px;
    }

    .form-senha h2 {
        font-size: 20px;
    }

    .form-senha input[type="password"] {
        font-size: 14px;
        padding: 10px 12px;
    }

    .form-senha button[type="submit"] {
        font-size: 14px;
        padding: 12px;
    }
}